BMC Performance Manager Express for EMC Disk Arrays

Transcription

1 BMC Performance Manager Express for EMC Disk Arrays User Documentation March 2012

2 Contacting BMC Software You can access the BMC Software Web site at From this Web site, you can obtain information about the company, its products, corporate offices, special events, and career opportunities. United States and Canada Outside United States and Canada Address BMC Software, Inc CityWest Blvd. Houston TX Telephone (01) Telephone or Fax (01) Fax Copyright 2006 BMC Software, Inc. or licensors, as an unpublished work. All rights reserved. BMC Software, the BMC Software logos, and all other BMC Software product or service names are registered trademarks or trademarks of BMC Software, Inc. IBM is a registered trademark of International Business Machines Corporation. DB2 is a registered trademark of International Business Machines Corporation. Oracle is a registered trademark, and the Oracle product names are registered trademarks or trademarks of Oracle Corporation. All other trademarks belong to their respective companies. BMC Software considers information included in this documentation to be proprietary and confidential. Your use of this information is subject to the terms and conditions of the applicable End User License Agreement for the product and the proprietary and restricted rights notices included in this documentation. Restricted Rights Legend U.S. Government Restricted Rights to Computer Software. UNPUBLISHED -- RIGHTS RESERVED UNDER THE COPYRIGHT LAWS OF THE UNITED STATES. Use, duplication, or disclosure of any data and computer software by the U.S. Government is subject to restrictions, as applicable, set forth in FAR Section , DFARS , DFARS , DFARS , and DFARS , as amended from time to time. Contractor/Manufacturer is BMC Software, Inc., 2101 CityWest Blvd., Houston, TX , USA. Any contract notices should be sent to this address. 2

3 You can obtain technical support by using the Support page on the BMC Software Web site or by contacting Customer Support by telephone or . To expedite your inquiry, please see "Before Contacting BMC Software." Support Web Site You can obtain technical support from BMC Software 24 hours a day, 7 days a week at From this Web site, you can Read overviews about support services and programs that BMC Software offers: Find the most current information about BMC Software products Search a database for problems similar to yours and possible solutions Order or download product documentation Report a problem or ask a question Subscribe to receive notices when new product versions are released Find worldwide BMC Software support center locations and contact information, including addresses, fax numbers, and telephone numbers Support by Telephone or In the United States and Canada, if you need technical support and do not have access to the Web, call Outside the United States and Canada, please contact your local support center for assistance. To find telephone and contact information for the BMC Software support center that services your location, refer to the Contact Customer Support section of the Support page on the BMC Software Web site at Before Contacting BMC Software Before you contact BMC Software, have the following information available so that Customer Support can begin working on your problem immediately: Product information product name product version (release number) license number and password (trial or permanent) Operating system and environment information machine type operating system type, version, and service pack or other maintenance level such as: PUT or PTF system hardware configuration serial numbers related software (database, application, and communication) including type, version, and service pack or maintenance level Sequence of events leading to the problem Commands and options that you used Messages received (and the time and date that you received them) product error messages messages from the operating system, such as "file system full" 3

4 Table of Contents The Product Synergy with BMC Performance Manager Express for Hardware EMC SMI-S Provider...24 Supported Platforms...25 Installing BMC Performance Manager Express for EMC Disk Arrays...27 Adding BMC Performance Manager Express for EMC Disk Arrays to an Element Profile...31 Adding BMC Performance Manager Express for EMC Disk Arrays to an Existing Element...34 Deleting Application Classes from an Element...34 Deleting Application Classes from an Element Profile...35 Removing BMC Performance Manager Express for EMC Disk Arrays from the Portal...37 Checking Available Spare Disks...38 Detecting Oversubscription Situations (Thin Provisioning) Diagnosing Slow...39 LUNs...40 Enabling the Debug Mode...40 Identifying the Hosts that can Access a LUN...41 Identifying LUNs not Owned by their Normal (Default) Storage Processor...41 Identifying Most Busy LUNs...43 Identifying a Storage Processor (Controllers) Overload...43 Monitoring the Efficiency of the Caching Mechanism...45 Reclaiming Space of Unmapped (Unused) LUNs Reporting a Disk...45 Space Consumption...46 Reporting the Total Traffic on an Hourly or Daily Basis...48 Setting Thresholds...50 Viewing the Overall Activity of a Disk Array...54 Application Classes SEN_EMC_ARRAY SEN_EMC_CONTROLLER...56 SEN_EMC_CONTROLLER_CONT...57 SEN_EMC_DISKGROUP...57 SEN_EMC_DISKGROUP_CONT...57 SEN_EMC_FCPORT SEN_EMC_MAIN...58 Table of Contents 4

5 ...58 SEN_EMC_PHYSICALDISK...58 SEN_EMC_PHYSICALDISK_CONT...58 SEN_EMC_SMISPROVIDER...59 SEN_EMC_SMISPROVIDER_MANAGEDARRAY...59 SEN_EMC_STORAGEPOOL_CLAR...60 SEN_EMC_STORAGEPOOL_SYMM...60 SEN_EMC_VOLUME...61 SEN_EMC_VOLUME_CONT Table of Contents 5

6 Release Notes for v2.0.00

7 What's New The following classes have been added: SEN_EMC_CONTROLLER_CONT, SEN_EMC_DISKGROUP, SEN_EMC_DISKGROUP_CONT, SEN_EMC_FCPORT, SEN_EMC_MAIN, SEN_EMC_PHYSICALDISK_CONT, SEN_EMC_SMISPROVIDER, SEN_EMC_SMISPROVIDER_MANAGEDARRAY, SEN_EMC_STORAGEPOOL_CLAR, SEN_EMC_STORAGEPOOL_SYMM, SEN_EMC_VOLUME_CONT Changes and Improvements Better integration with BMC ProactiveNet Performance Management: Application Classes and Key Performance Indicators are now automatically enabled and set when importing a BMC Portal adapter into BMC ProactiveNet. SEN_EMC_ARRAY: o The Array Addresses parameter was renamed Array ID o The following 2 parameters were added to the application class: Family and Number of Disks SEN_EMC_STORAGEPOOL_CLAR and SEN_EMC_STORAGEPOOL_SYMM: o These two application classes replace SEN_EMC_STORAGEPOOLS o The Read Byte Rate and Write Byte Rate parameters were added o The Consumed Capacity and Subscribed Capacity parameters are now expressed in Terabytes (TB) SEN_EMC_CONTROLLER: the following 4 parameters were added to the application class: o IP o Protocol o Role o Serial Number SEN_EMC_VOLUME: the following 2 parameters were added to the application class: o Paths o Hosts 7

8 SEN_EMC_PHYSICALDISK: the Storage Pool parameter was added to the application class Log files: The naming convention for log files was modified to become sen*_debug.log The Status default warning conditions is no longer "!" = Warning" and "!!" = Alarm but 1=Warning and 2=Alarm. Better performance when discovering and collecting data from large storage systems. Collection timeouts are less likely to occur Statistics Logging: A warning alert is now triggered on the SMI-S Provider instance if the statistics have not been enabled on the storage systems. Fixed Issues The value of iscsi hosts was not properly displayed. The parameter value is now easily readable. Known Issues In some specific cases, the PM does not report the fact that the statistics have not been enabled on the monitored storage system. In rare occasions, some parameters may show a "No Data" value. The time set on the SMI-S Provider may differ from the time of the RSM. To ensure an accurate time information, it is recommended to synchronize them both. 8

9 Overview

10 is an agent-less Performance Manager for the BMC Portal environment. It allows you to automatically discover and monitor every aspect of EMC disk arrays, from the general health of the array to the performance of the LUNs and from the file systems space usage to the mirroring and snapshots mechanisms latency; and to consolidate diverse monitoring needs within the Portal framework through a single solution. To setup a complete monitoring of the disk array, we strongly recommend you to also use BMC Performance Manager Express for Hardware that covers all the physical aspect of the disk array (status of the disks, ports, temperature, power supplies, power consumption, etc). Being a Performance Manager specifically designed for BMC Portal, BMC Performance Manager Express for EMC Disk Arrays uses the Portal s web-based interface and features for installing, managing and monitoring your infrastructure. 10

11 Getting Started

12 This chapter describes the prerequisites and the procedures you must perform before installing BMC Performance Manager Express for EMC Disk Arrays. Please follow the given instructions carefully in order to ensure a successful integration of the solution within the Portal environment. Minimum Requirements The computer on which you install should already have: BMC Performance Manager Portal version Access to an RSM i.e. Remote Service Monitor The RSM program must be installed on a Windows platform. This can either be same as the server where the Portal is installed or, any other Windows computer on the network. Once you install, you can add as many elements as you require in your monitoring environment. Enabling the statistics On EMC Clariion and VNX storage systems, the statistics need to be enabled to allow BMC Performance Manager Express for EMC Disk Arrays to collect statistics and to monitor performance. Using Navisphere In Navisphere, enable Statistics logging: Open Navisphere Right-click the icon for the storage system Click Properties. Be sure SP A and SP B are in the Storage Processors section Click the box for Statistics Logging under the Configuration section For locally attached CLARiiONs, check if authorization info is present Run the dv command from EMC TestSMIProvider. Make sure all arrays are discovered without any errors Make sure performance is turned on in the Profile for storage arrays Make sure there are instances for the CIM_BlockStorageStatisticalData class: Run Tek-Tools testprovider or EMC s testsmiprovider Type ein for command Type CIM_BlockStorageStatisticalData for Class Name If no instances are returned, reset EMC Provider Once complete, resume steps 1-3. If y ou are using a v ersion older than SMIKit , the EMC SMI-S Prov ider does not recognize changes in the array when a LUN or R A ID Group is created or deleted from Nav isphere. It is thus recommended to upgrade y our EMC SMIS Prov ider to v ersion or higher to benefit from the auto-sy nchronization mechanism set by default to one hour after the last update. If y ou do not upgrade y our EMC SMI-S Prov ider, y ou will hav e to run the refsy s command from testsmiprov ider each time y ou create or delete LUN or R A ID groups from Nav isphere. 12

13 Using Unisphere 1. Log on to the Unisphere console with the administrator s account Lo g g ing in to the Unis p he re Co ns o le 2. Select the array from the System List Se le cting the a rra y fro m the Sy s te m Lis t 13

14 3. Under System Management, click Properties Ena bling Sta tis tics Lo g g ing 4. In the General tab: Check the Enable Statistics Logging box Click Apply Click OK to finish. The Product The BMC Performance Manager Express for EMC Disk Arrays package The file required for: the installation of is BPM-Express-EMCDiskArrays par. This file is valid for installation on Windows, UNIX and Linux. the integration of with BMC ProactiveNet Performance Management is LYV39_1.8.00_PM2BPPM.zip Please contact your BMC sales representative to purchase the license to use this product. The product 14

15 package is to be downloaded from the Sentry Software website on the BMC Performance Manager Express for EMC Disk Arrays product page. A trial version is available for free from the Sentry Software website. How it works Once is installed in your Portal environment: To start up the monitoring, add its corresponding application class to an element or element profile. The application classes are listed under the Storage category Fill in Properties and Credentials information and click Next Set the threshold parameters Click Finish to validate. Portal level is an agent-less solution designed specifically for BMC Portal. Therefore, it uses/shares/offers all the procedures, features and capabilities offered in the Portal, like Element Profile, Shared credentials, Adding/Editing/Deleting classes etc. BPPM level Once installed and configured in your Portal environment, BMC Performance Manager Express for EMC Disk Arrays can be integrated into BMC ProactiveNet Performance Management to detect abnormalities on your monitored environment. EMC Disk Arrays level As described above, you need to enter certain information: Collection interval Configuration details depending on the version. The Product 15

16 Synergy with BMC Performance Manager Express for Hardware To benefit from a complete monitoring of EMC disk arrays, BMC Performance Manager Express for EMC Disk Arrays needs to be used in conjunction with BMC Performance Manager Express for Hardware. BMC Performance Manager Express for Hardware discovers all the physical components of a storage devices, that is: controllers, disks, power supplies, fans, network and fiber ports, and reports hardware failures on these components. Additionally, it monitors the traffic on each network and fiber port. monitors all of the performance metrics and usage statistics of your EMC disk arrays, such as file disk space usage, storage controller utilization, I/Os on the disks/controllers/volumes, etc. It continuously monitors the activity of each component and is also able to build reports on past utilization statistics. The complete storage monitoring solution architecture is composed of the elements represented in the illustration below: Sto ra g e m o nito ring s o lutio n a rchite cture Synergy with BMC Performance Manager Express for Hardware 16

17 Installation Guide

18 This chapter explains how to install and run for BMC Portal. As is a performance manager specifically designed for the BMC Portal environment, it uses the Portal s web-based interface and features for installing, managing and monitoring your Information Technology (IT) infrastructure. The full integration with BMC Portal provides a single customizable entry point for data from multiple sources and a single view that enables you to monitor the health and performance of your infrastructure. 18

19 EMC SMI-S Provider The solution leverages the EMC SMI-S Provider that needs to be installed on a Windows or Linux system. The following procedure explains in details how to get, install and configure EMC SMI-S Provider to enable to efficiently interact with it. 1. Install the SMI-S Provider Access the EMC s Powerlink website: Log in with the User ID and Password provided by EMC s Powerlink. If you do not have an account, you can register directly on EMC s Powerlink website Click the Support tab, and then click Software Downloads and Licensing > Downloads S > SMI-S Provider Select SMI-S Provider for SMI-S 1.4 and Download se7114-windows-x86-smi.exe EMC SMI-S Provider 19

20 EM C's Po we rlink W e bs ite Launch the se7114-windows-x86-smi.exe. The EMC Solutions Enabler with SMI X86 welcome page appears prompting you to install Solutions Enabler with SMI version x.x.x. Click Next. EM C So lutio ns Ena ble with SM I X86 W e lco m e Pa g e EMC SMI-S Provider 20

21 7. 8. Click Next to begin the installation. The Destination Folder dialog box opens and prompts you to select an install directory for Solutions Enabler and EMC SMI-S Provider. It is recommended that you choose the default directory. EM C So lutio ns Ena ble with SM I X86 Ins ta lla tio n Dire cto ry 9. Click Next to continue. The Provider list dialog box opens. 10. Select both Array Provider and Host Provider. EMC SMI-S Provider 21

22 EM C So lutio ns Ena ble with SM I X86 SM I Pro v id e rs Lis t 11. Click Next to continue. The Ready to Install Program dialog box opens. EM C So lutio ns Ena ble with SM I X86 Sta rt Ins ta lla tio n 12. Click Install to begin installing files to your selected folder. This may take several minutes. 13. When the Installation Wizard Completed dialog box opens, click Finish to complete the setup. When the installation procedure is completed, update your environment variable for path to include the Solutions Enabler installation directory, which by default is C:\Program Files\EMC\SYMCLI\bin, in order to run the command line utilities from any directory. 2. Add CLARiiON Disk Array to the Installed SMI-S Provider Navigate to the C:\Program Files\EMC\SYMCLI\storbin and run TestSmiProvider.exe For connection type, type ssl For Host, type enter Repeat the operation for Port, Username, Password, Log output to console and Log output to file: type addsys type y (yes) type 1 (Default for CLARiiON) type xxx.xxx.xxx.xxx (SPA IP Address of the CLARiiON array) type xxx.xxx.xxx.xxx (SPB IP Address of the CLARiiON Array) type enter type 2 type 2 EMC SMI-S Provider 22

23 type the username (type a user that has at least a read access on the CLARiiON Array) type the password (password of the above user) then type enter 5. A message meaning that the CLARiiON Array has been added is displayed as shown on the picture below EMC SMI-S Provider 23

24 3. Add a User to SMI-S provider Access where <ip-host> is either the IP address of the name of the SMI-S Provider host Log in using the username admin and #1Password as password. Click Add User and create a user with the role of Administrator. This newly created username can now be used to obtain access to the Array Provider. 4. Add authorization information Shut down the EMC CIM Server: (The service name is ECOM.exe and it displays as ECOM in the Services control panel.) Use the SYMCLI symcfg command, as shown in the following syntax example, to add the username and password for each CLARiiON storage processor: >symcfg authorization add -host HostName username UserName -password PassWord Add authorization for CLARiiON storage processor A with IP address <ip1>, username clariion and password clarpass, using the following command: symcfg auth add -host username clariion -password clarpass Then, repeat the operation with CLARiiON storage processor B 5. You must list the information for storage processor A first, then storage processor B. Any time a locally-attached CLARiiON is added to the EMC SMI-S Provider, the EMC CIM Server must first be shut down. Once shut down, the authorization information can be added as described previously and the EMC CIM Server must be restarted. Start EMC CIM Server The time set on the SMI-S Prov ider may differ from the time of the PA TR O L A gent. To ensure an accurate time information, it is recommended to sy nchronize the SMI-S Prov ider time with the time set on the PA TR O L A gent. Supported Platforms supports the following Symmetrix and CLARiiON arrays: Supported Symmetrix arrays Symmetrix DMX Series (DMX-4, DMX-3, DMX-2) Symmetrix V-Max Series Supported CLARiiON arrays CX4 Series, CX3 Series, CX Series Supported EMC VNX EMC VNX series EMC SMI-S Provider 24

25 Installing BMC Performance Manager Express for EMC Disk Arrays Uploading BMC Performance Manager Express for EMC Disk Arrays to BMC Portal 1. Place the BPM-Express-EMC-DiskArrays par file in a known location on your file system. Log in to the Portal with administration rights. Lo g o n to the BM C Po rta l Installing BMC Performance Manager Express for EMC Disk Arrays 25

26 2. Click on Portal, then under Tasks click Performance Managers. Se le cting a Pe rfo rm a nce M a na g e r Click Upload and then click Browse to open a file selection dialog box. Select BPM-Express-EMC-DiskArrays par and click Upload. The Portal uploads the PAR file to the database, and BPM Express EMC Disk Arrays now appears as by Sentry Software in the list of Performance Managers. The word Published next to in the Performance Manager list indicates that the product is successfully installed. You are now ready to begin using. In the Portal Configure tab, verify each monitored array's properties and thresholds values to make sure all the necessary settings are properly configured. Installing BMC Performance Manager Express for EMC Disk Arrays 26

27 Adding BMC Performance Manager Express for EMC Disk Arrays to an Element Profile 1. Log in to the Portal with normal user credentials. 2. Click Configure tab > Element Profiles. The Available Profiles page appears. Select the Profile to which you wish to add the Storage class > Edit. Se le cting a Pro file 3. The selected Element Profile s Properties page appears. Go to Application Classes > Add. Adding BMC Performance Manager Express for EMC Disk Arrays to an Element Profile 27

28 A d d ing A p p lica tio n Cla s s e s 4. The Element Profile Properties Add Application Classes page appears. Choose Storage from the Select Category drop-down list. Se le cting the Sto ra g e A p p lica ble Cla s s Adding BMC Performance Manager Express for EMC Disk Arrays to an Element Profile 28

29 5. 6. Select the application class applicable to your system and click Next. On the Properties and Credentials page, enter the information required for monitoring the disk array: Input Properties Description Collection interval Select the polling interval from the drop-down list. Unit: Minutes. The collection interval should be equal to or higher than the SMI-S provider refresh rate to prevent "No Data" values to be displayed in Portal. Credentials Enter the login and password used to connect to the remote element through WMI. Hostname Enter the Hostname or IP address of the remote machine Debug Mode "Yes" enables the debug mode. The debug output produced is stored on the RSM server in a file located at "%RSM_HOME%/RSM(xx)/server/rsm/log/ sen*_debug.log". Please do not leave the debug mode enabled for too long as the debug file may grow indefinitely. Adding BMC Performance Manager Express for EMC Disk Arrays to an Element Profile 29

30 7. 8. Click Next. You arrive at the final step for adding the BMC Performance Manager Express for EMC Disk Arrays application class: Thresholds, Properties and Credentials. Thresholds are automatically set by. It is recommended to keep the default thresholds (or see the Thresholds section). Click Finish. Ele m e nt Pro file Pro p e rtie s 9. Click Done to save the changes made. The application class is now added to all the elements in the selected Element Profile. Adding BMC Performance Manager Express for EMC Disk Arrays to an Element Profile 30

31 Adding the EMC Disk Arrays Application Class to an Existing Element Log in to the Portal with normal user credentials. In the Configure tab: Click the Element to which you wish to add the EMC Disk Arrays solution and the Element Properties page appears. Scroll down to Application Classes > Add. Make sure that the element's platform is defined as Storage. A d d ing a n A p p lica tio n Cla s s On the Properties <Element> Add Application Classes page > Select Category > Storage. In the available Application Class list, select the application class applicable to the element and click Next. A p p lica tio n Cla s s Pro p e rtie s Adding the EMC Disk Arrays Application Class to an Existing Element 31

32 4. 5. The Properties and Credentials page appears asking for the information required for monitoring the disk array. Enter the WBEM username and password valid on the EMC SMI-S provider. These credentials must have been previously configured in the EMC SMI-S provider as described in the EMC SMI-S Provider section. Thresholds are automatically set by. It is recommended that you leave the default thresholds as they are. Click Finish. Details on how to modify thresholds are given in the User Guide. You can now return to the Status tab to view the monitoring of the element by BMC Performance Manager Express for EMC Disk Arrays. Adding the EMC Disk Arrays Application Class to an Existing Element 32

33 Un-installing

34 The procedure is the same as for any other Performance Manager installed on the Portal: Delete all application classes from all elements and element profiles Remove from the Performance Manager list of the Portal. The cannot be un-installed unless all its application classes are removed from each element. Deleting Application Classes from an Element An application class can be deleted from an element in two ways, just as it could be added through two routes: through Elements or through Element Profile. If the element was created directly through Elements: Click in the Configure tab > Properties > click on the element. In the Application classes section > click Delete. The Available Application Classes for Removal page appears. Select the application classes and click Next. It is possible to select more than one at a time. A Changes Saved message appears, confirming that the deletion has been done. R epeat this procedure on all elements to which BMC Performance Manager Ex press for EMC Disk A rray s application classes are added. Deleting Application Classes from an Element Profile An application class can be deleted from an element in two ways, just as it could be added through two routes: through Elements or through Element Profile. If the Element Profile route was used click on Configure tab > Element Profile > select Profile > Edit. 34

35 Once in the Element Profile Properties page, scroll down to the Application Classes section and click on Delete. On the Available Application Classes for Removal page, select all the BMC Performance Manager Express for EMC Disk Arrays classes and click Next. Confirm the deletion of the selected classes by clicking on Delete. A Changes Saved message pops up confirming the deletion of the application classes from this element profile. The selected application classes will be deleted from all elements that were created using this element profile. Removing BMC Performance Manager Express for EMC Disk Arrays from the Portal To un-install or remove from the Portal, you follow the same steps as for any PM on the Portal Log in with super-administrator credentials and click on Portal > Performance Managers. Ensure the Performance Managers list shows 0 Elements next to the name: BMC Performance Manager Express for EMC Disk Arrays. Select and click Delete. Confirm deletion of the selected Performance Manager by clicking on Delete. A message displaying successful deletion appears. For a complete un-installation, it is recommended to remove all traces of the performance manager from the Portal. Delete the PAR file from each RSM used by the solution. To do so: Stop the RSM service Go to %RSM_HOME%\RSMxx\server\rsm\solutions Delete the file: BPM-Express-EMC-DiskArrays par Restart the RSM service The is then completely removed from your BMC Portal environment. Deleting Application Classes from an Element Profile 35

36 User Guide

37 monitors all of the performance metrics and usage statistics of your EMC disk arrays, such as file disk space usage, storage controller utilization, I/ Os on the disks/controllers/volumes, etc. It continuously monitors the activity of each array and is also able to build reports on past utilization statistics. To setup a complete monitoring of the array, we strongly recommend you to also use BMC Performance Manager Express for Hardware that covers all the physical aspect of the EMC disk arrays (status of the disks, ports, temperature, power supplies, power consumption, etc). This chapter explains how to use each monitoring tool i.e. a separate application class within the BMC Performance Manager Express for EMC Disk Arrays by Sentry Software solution. is a Performance Manager specifically designed for BMC Portal; consequently, it uses the same common features and procedures of BMC Portal. This document assumes that the user knows how to use the Portal and therefore explains procedures only related to, and not on how to add Elements, Element Profiles etc. Please refer to the BMC Portal documentation for details on how to use the Portal. Checking Available Spare Disks To avoid any loss of critical data, it is essential for a disk array to always maintain a pool of spare disks that can replace the faulty disk when a disk failure occurs. A disk array without any left spare disk will not be able to keep the level of data safety and performance in case of a disk failure. The Spare Disk Count parameter of the SEN_EMC_ARRAY class reports the number of spare disks available for each disk array monitored with the solution. By default, a warning is triggered when no spare disk is available (Spare Disk Count is set to zero). Verifying the Number of Available Spare Disks in Your EMC Disk Arrays 37

38 1. 2. Select an element group in the tree view (the main Infrastructure group, for example) Click the Reports tab. Create a report for the last 24 hours, bottom 50 values of the Array Spare Disk Count parameter of the EMC Disk Arrays application class for the BMC Performance Manager Express for EMC Disk Arrays by Sentry Software solution. R e p o rt A v a ila ble Sp a re Dis k s Detecting Oversubscription Situations (Thin Provisioning) We call an oversubscription situation when: The storage pool is configured for thin provisioning ( thin storage pool ) The storage pool is oversubscribed, i.e. the total disk space visible to the hosts (subscribers) is greater than its actual capacity (this situation is normal for a thin pool since it is its very purpose) The storage pool actual consumed capacity is nearing 100% Such situation is highly critical because the inability to allocate additional space to a LUN when requested by the subscriber host will lead to catastrophic data loss and corruption. When the conditions described above are met, the solution sets the Oversubscription Situation parameter to 1, automatically raising a warning. By default, the warning for Oversubscription Situation is issued when the Consumed Capacity Percentage parameter goes above 100%. This threshold can be configured in the input properties of the solution. Checking Available Spare Disks 38

39 Configuring Oversubscription Threshold Click the EMC Disk Arrays icon and then the Configure tab. Edit the Oversubscription Situation Threshold (%) property to the appropriate value. When the Oversubscription Situation parameter triggers a warning, it is highly recommended that the SAN administrators add capacity to the storage pool as soon as possible. Diagnosing Slow LUNs If a system administrator complains that his servers are experiencing slow I/Os performance and that it is caused by the SAN, you may want to verify the actual response time of the LUNs the server is relying on. The Response Time parameter of the SEN_EMC_VOLUME class represents the average time it took to complete the read and write operations on the LUN during the collection interval. Typically, the average response time is below 10 milliseconds. You may also want to compare this value to the response time of the other LUNs to see whether one server is really getting worse I/O performance than another. Vo lum e - R e s p o ns e T im e Pa ra m e te r If the response time is low, you will need to check the amount of data that is written and read on this LUN. The bad performance may simply be due to an abnormally large amount of data to process. Otherwise, the problem is maybe between the disk array and the server, in the fiber links. Detecting Oversubscription Situations (Thin Provisioning) 39

40 Enabling the Debug Mode By default, sends only the most critical information, warning and error messages to the Application Collection Status parameter. Most often, this information is accurate enough to ensure that BMC Performance Manager Express for EMC Disk Arrays is functioning properly. If you encounter an issue and wish to report it to customer support, you will be asked to enable the Debug Mode and provide the debug output to the support team. 1. In the Configure tab >, under Tasks, click Elements 2. Select the Element whose debug output you require and click Edit. 3. Scroll down to Application Classes > click the Application class for which you want to enable the debug mode > click Edit. 4. Select Yes from the drop-down Debug Mode list > Save By default, sends its debug output to: % RSM_HOME%/RSM(xx)/server/rsm/log/sen*_debug.log". 5. Wait for 15 minutes and then disable the debug mode by selecting No. 6. Send the debug file to the support team. Pay attention to the file size -the debug output of BMC Performance Manager Ex press for EMC Disk A rray s could be v ery large if enabled for sev eral day s. Identifying the Hosts that can Access a LUN In most SAN configurations, each LUN belongs to a storage group whose host members are the only ones authorized to access the LUN. This is called LUN masking. For each LUN, the solution displays its WWN, the storage group to which it belongs to as well as the hosts member of this group. In most cases, identifying the storage group of a LUN is sufficient to recognize the server that is using it. Enabling the Debug Mode 40

41 Identifying LUNs not Owned by their Normal (Default) Storage Processor The Owning Storage Processor parameter reports the name of the controller that handles I/Os for each LUN. If a LUN is not currently handled by its normal (default) storage processors, the name of the default controller will be indicated as SP_B (default: SP_A). To identify LUNs that are not owned by their normal storage processor, you simply need to list the Volume objects where the Owning Storage Processor parameter contains the string Default. Identifying Most Busy LUNs To identify the LUNs that generate the most traffic on the disk array, use the Read Byte Rate and Write Byte Rate parameters of the LUN class that expose the data throughput for each LUN. Use these parameters to report on the total data traffic (per hour or per day) on each LUN in GB. To make sure that traffic is display ed cumulativ ely per hour, select a time window of at least 12 hours in the graph window, select at least 7 day s to v isualize per day cumulativ e data. 1. In the Status tab, click the Volume for which you need to check the LUNs activity, then expand the LUNs object to display the Read/Write Byte Rate parameters. Identifying LUNs not Owned by their Normal (Default) Storage Processor 41

42 Se le cting a LUNs R e a d /W rite By te R a te Pa ra m e te r 2. Click the History icon to automatically display a graph that shows the Read/Write Byte Rate values collected for a selected parameter during the previous six hours. You can customize the chart and table to show parameter history for different time periods. Identifying Most Busy LUNs 42

43 Vie wing a LUNs R e a d /W rite By te R a te a s a g ra p h Identifying a Storage Processor (Controllers) Overload To visualize the activity of a controller in an EMC disk array, use the Processor Utilization parameter of the SEN_EMC_CONTROLLER class. A warning is issued when the processor utilization goes too high, which means that the controllers cannot keep up with the load on the disk array. It is then important to identify what is overloading the controllers. The Response Time parameter of the SEN_EMC_CONTROLLER class represents the average time it took the controller to process the read and write requests of the hosts. The higher the Response Time goes, the slower I/Os the servers will get. By default, the solution triggers a warning when the controller takes more than 10 milliseconds on average to complete the I/O requests and an alarm when the response time reaches 100 milliseconds. Monitoring the Efficiency of the Caching Mechanism Each controller in an EMC disk array can be configured to use a specified amount of memory to cache the read and/or write operations. The solution reports the amount of memory configured by each controller for the read and write operations. The Write Flush Byte Rate represents the rate in MB/sec at which data is committed to the disk (i.e. physically written). This value is to be compared with the Write Byte Rate of the disk array. Identifying Most Busy LUNs 43

44 Co m p a ring W rite Flus h By te R a te with W rite By te R a te The Cache Dirty Pages Percentage parameter represents the amount in percentage of the write cache that has been modified by host write operations and not yet flushed to the disks. Reaching 100% means that write case is too small and cannot handle the flow of write operations. Che ck ing the Ca che Dirty Pa g e s Pe rce nta g e Monitoring the Efficiency of the Caching Mechanism 44

45 Reclaiming Space of Unmapped (Unused) LUNs Over time, as servers connected to a SAN get decommissioned, administrators find an increasing number of unmapped LUNs, or volumes that are no longer used by any server. These LUNs, while unused, still occupy disk space in the disk array. Being able to identify such unmapped LUNs and reclaim the disk space uselessly consumed by these LUNs will help administrators avoid unnecessary upgrades and extensions of their disk arrays. Reporting a Disk Space Consumption Making sure that a disk array has enough remaining disk space available is critical for several reasons: SAN administrators want to make sure to be able to provision disk space for new servers when requested, as quickly as possible. The disk array itself may need additional disk space for specific features to work properly, like automatic snapshots, mirroring, etc. If thin provisioning is used, the remaining disk space becomes dramatically critical since the inability to allocate additional space to a LUN when requested by the subscriber host will lead to catastrophic data loss and corruption. The disk space used is permanently monitored for each storage pool. The Subscribed Capacity parameter of the Pool class represents the amount of disk space that has been made available to the subscriber hosts, or in other words, the amount of disk space that is seen by the servers connected to disk array. The Consumed Capacity parameter of the SEN_EMC_STORAGEPOOLS class represents the actual space usage in the storage pool. For thin pools (when thin provisioning is enabled on the disk array), this value is normally lower than the Subscribed Capacity, as it is the main purpose of thin provisioning. For traditional pools, the Consumed Capacity parameters has the same value as the Subscribed Capacity parameter, as the entirety of the subscribed disk space is fully allocated in the storage pool. The Consumed Capacity Percentage parameter is the most critical one as a storage pool usage nearing 100% means that SAN administrators will not be able to create new LUNs in the storage pool. By default, no alarm or warning threshold is set on this parameter as the fullness of a storage pool may be a normal situation. However, you can set alert thresholds on this parameter as it fits your needs. Reclaiming Space of Unmapped (Unused) LUNs 45

46 Verifying the Available Disk Space in the Storage Pool of your EMC Disk Arrays In the Configure tab, select an element group in the tree view (the main Infrastructure group, for example) Click on the Reports tab. Create a report for the last 24 hours, top 50 values of the Array Storage Pools Disk Group Storage Pool Consumed Capacity Percentage parameter of the EMC Disk Arrays application class for the by Sentry Software solution. R e p o rt Dis k Sp a ce Co ns um p tio n Reporting the Total Traffic on an Hourly or Daily Basis not only monitors the traffic and activity of the disk array, controllers, LUNs and physical disks in MB/sec, but also in GB per hour or per day. The exact amount of data that was read or written to the disk array, LUN or physical disk is calculated for each hour of the day and each day of the week. Each data rate parameter in MB/sec is accompanied by a non-rate one in GB. These parameters are cumulative : their instantaneous value has no meaning and they need to be visualized in a long period of time. (instead of Read Byte Rate or Write Byte Rate). Reporting a Disk Space Consumption 46

47 Generating a Disk Array Usage Report Click the Status tab in Portal When viewing the status of the disk array, controller, LUN or physical disk, click on the graph icon of the Read Bytes or Write Bytes parameter Se le cting a Dis k A rra y Pa ra m e te r Reporting the Total Traffic on an Hourly or Daily Basis 47

48 3. Choose the 12, 24 or 48 hours timeframe to visualize an hourly report. Choose the 5 or more days timeframe to visualize a daily report Dis k A rra y R e a d By te Gra p h Setting thresholds Whenever relevant, automatically sets thresholds for parameters. If you prefer a more fault-tolerant monitoring, you can modify the thresholds of each parameter through the Configure tab > Edit Thresholds. It is strongly recommended to wait for all the storage objects to be discov ered before setting threshold v alues to av oid hav ing to enter thresholds for each occurrence of the application class. To modify the parameter thresholds of several storage objects of an element: Reporting the Total Traffic on an Hourly or Daily Basis 48

49 1. In the Configure tab, click on the Storage (<platform>) or the instance icon > Edit T hre s ho ld s, Pro p e rtie s a nd Cre d e ntia ls Any modification to the thresholds or any other properties of elements created using the "Element Profile" mode is to be done using the Element Profile route or by clicking "Override Profile" 2. Uncheck the Warning and Alarm boxes for all the parameters for which you want to disable the alert conditions Dis a bling the d e fa ult a le rt thre s ho ld s Setting thresholds 49

50 3. Check the Warning and Alarm boxes for all the parameters for which you want to enable the alert conditions. You will then have to manually enter the threshold values and check the Active box. In the example below, a Warning will be triggered if Status is greater than 1, an alarm will be triggered when greater than 2 M o d ify ing thre s ho ld v a lue s Click Save The Success, changes have been saved message indicates that the modifications have been registered. Alerts are displayed by the parameter whose thresholds are modified. Viewing the Overall Activity of a Disk Array In order to visualize the activity of a disk array, use the Read Byte Rate and Write Byte Rate of the SEN_EMC_ARRAY class. These parameters represent the overall traffic in megabytes per second for each monitored array, or more precisely, each EMC disk array that is exposed through the EMC SMI-S Provider (see the EMC_SMI-S_Provider section of the Installation Guide for more information about the EMC SMI-S Provider). Setting thresholds 50

51 Viewing a Disk Array Activity Click the Status tab in Portal Click the array icon in the tree view to visualize its current activity Se le cting a Dis k A rra y Pa ra m e te r Viewing the Overall Activity of a Disk Array 51

52 3. Click the Read Byte Rate or the Write Byte Rate graph icons to visualize the activity of the disk array in the past hours or days. Dis k A rra y R e a d /W rite By te R a te Gra p h The overall activity can also be reported in GB per hour or per day (instead of MB/sec) so SAN administrators can visualize how much data has been written to or read off the disk array each hour of the day or each day of the week (see the Reporting the total traffic on an hourly or daily basis section for more information on this subject). Viewing the Overall Activity of a Disk Array 52

53 Reference Guide

54 This chapter provides detailed information regarding BMC Performance Manager Express for EMC Disk Arrays Application Classes. Application Classes This section familiarizes you with all the Application Classes used by BMC Performance Manager Express for EMC Disk Arrays on the Portal. It gives a detailed view of each application class describing its function and parameters. The available Application Classes for are: SEN_EMC_ARRAY SEN_EMC_CONTROLLER SEN_EMC_CONTROLLER_CONT SEN_EMC_DISKGROUP SEN_EMC_DISKGROUP_CONT SEN_EMC_FCPORT SEN_EMC_MAIN SEN_EMC_PHYSICALDISK SEN_EMC_PHYSICALDISK_CONT SEN_EMC_SMISPROVIDER SEN_EMC_SMISPROVIDER_MANAGEDARRAY SEN_EMC_STORAGEPOOL_CLAR SEN_EMC_STORAGEPOOL_SYMM SEN_EMC_VOLUME SEN_EMC_VOLUME_CONT Baselines and Key Performance Indicators Some parameters are identified by default as Key Performance Indicators (KPIs) and therefore automatically included in the base lining calculation. To learn more about auto baselining and KPIs, please refer to the Managing Baselines and Key Performance Indicators chapter. In this guide, parameters flagged as KPIs and included by default in the baseline calculation process are respectively identified by the following icons: Baselining KPI SEN_EMC_ARRAY Parameters Name Description Units 54 Default Alert Conditions

55 Array ID Detailed information about the disk array (WWN, Serial Number, iscsi) Available Capacity Number of terabytes available in the array TB Family Disk Array Family (CLARiiON or Symmetrix) Number of Disks Number of disks available in the array Read Byte Rate Count of data read per second MB/s Read Bytes Cumulative count of read bytes GB Size Size of the disk array TB Spare Disk Count Number of spare disks available in the array 0 = Warning Status Status of the disk array 1 = Warning 2 = Alarm Status Information Status description of the disk array Subscribed Capacity Number of terabytes in the array that has been subscribed TB Write Byte Rate Count of data written per second MB/s Write Bytes Cumulative count of write bytes GB SEN_EMC_CONTROLLER Parameters Name Description Unit Default Alert Conditions Cache Dirty Pages Percentage ** Percentage of dirty pages currently in cache, that is, pages that have been modified in the SP s write cache, but that have not yet been written to disk. A high percentage of dirty pages means the cache is handling many write requests Percent (%) None IP Controller's IP Address Memory Size Memory size in Megabytes of the adapter MB None Processor Utilization ** Percentage of utilization of the processor Percent (%) Warning = 80 % (for two consecutive collects) Alarm = 90 % PROM Revision Adapter Card PROM Revision Application Classes 55

56 Protocol Protocol supported by the controller. Read Cache Size Size of the cache containing read data None Read Operations Percentage ** Percentage of read operations Percent (%) None Response Time ** Average time taken by the controller to complete a read and write request during the polling period. ms Warning = 10 ms (two consecutive times) Alarm = 100 ms Role Controller role (Front-end; Back-end; Remote; ) Serial Number Controller's serial number Status Status of the controller 1 = Warning 2 = Alarm Status Information Status description of the controller Transfer Bytes Cumulative count of data transferred GB None Transfer Byte Rate Count of data transferred MB/s None Write Cache Size Size of the cache containing write data GB None Write Flush Bytes Cumulative count of write cache flushed GB None Write Flush Byte Rate ** Cumulative count of write cache flushed MB/s None Write Operations Percentage ** Percentage of written operations Percent (%) None ** Parameters not av ailable on Sy mmetrix Vmax dev ices. SEN_EMC_CONTROLLER_CONT This application class contains all the controllers discovered for CLARiiON and Symmetrix. It has no parameters. Application Classes 56

57 SEN_EMC_DISKGROUP Parameters Name Description Unit Default Alert Conditions Capacity Total space available in the disk group TB Consumed Capacity Total size of the space actually allocated or reserved GB Consumed Capacity Percentage Percentage of the storage pool that is actually allocated or reserved Percent (%) Oversubscription Situation Ratio between the storage space actually used and the storage space reserved. This parameter can only be activated only for thin Storage Pool. An Alarm is triggered when the subscribed capacity percent equals 100 % and the consumed capacity is higher than 100 %. 1 = Warning 2 = Alarm Read Byte Rate Amount of data read per second. MB/s Size Total space allocated to the physical storage TB Subscribed Capacity Space of the storage pool that is subscribed GB Subscribed Capacity Percentage Percentage of the storage pool that is subscribed Percent (%) Write Byte Rate Amount of data written per second. MB/s SEN_EMC_DISKGROUP_CONT This application class has no parameters. SEN_EMC_FCPORT Parameters Name Description Unit Default Alert Conditions Role Port Role (Front-end or Back-end) Speed Port speed GB/s Transfer Byte Rate Count of data transferred MB/s Type Port type (Ethernet, FC Port, etc.) Volumes List of volumes attached to the FC Port. This parameter is deactivated on back-end controllers. WWN WWN port address. Application Classes 57

58 SEN_EMC_MAIN This application class contains no parameters. SEN_EMC_PHYSICALDISK Parameters Name Description Unit Default Alert Conditions Disk Time Utilization ** Percentage of disk time utilization Percent (%) 90 = Warning (for 5 consecutive collects) Firmware Revision Physical disk revision version Manufacturer Name of the disk manufacturer Model Physical disk model Read Bytes Cumulative count of data read GB Read Byte Rate Count of data read GB/s Response Time ** Response time ms 20 = Warning (for 5 consecutive collects) RPM Revolutions per minute. Revolution speed of physical disk Serial Number Serial number of the physical disk Size Size of the physical disk GB Storage Pool Associated storage pool Write Bytes Cumulative count of data written GB Write Byte Rate Count of data written MB/s ** Parameters not av ailable on Sy mmetrix Vmax dev ices. SEN_EMC_PHYSICALDISK_CONT This application class has no parameters. SEN_EMC_SMISPROVIDER Parameters Name Description Unit Default Alert Conditions Version Version of the SMI-S provider composed of the major, minor, and revision numbers. Application Classes 58

59 SEN_EMC_SMISPROVIDER_MANAGEDARRA Y Parameters Name Description Unit Default Alert Conditions Last Refresh Time Date and time when information has last been refreshed. Refresh Rate Time after which information will be refreshed. minutes Statistics Reports whether the statistics have been enabled or not on the monitored storage systems. 1 = Warning SEN_EMC_STORAGEPOOL_CLAR Parameters Name Description Units Default Alert Conditions Capacity Total space available in the RAID group TB Consumed Capacity Total size of the space actually allocated or reserved TB Consumed Capacity Percentage Percentage of the storage pool that is actually allocated or reserved Percent (%) Oversubscription Situation Ratio between the storage space actually used and the storage space reserved. This parameter can only be activated only for thin Storage Pool. An Alarm is triggered when the subscribed capacity percent equals 100 % and the consumed capacity is higher than 100 %. 1 = Warning 2 = Alarm RAID Level RAID level of the storage pool. Read Byte Rate Amount of data read from the storage pool MB/s Size Total space allocated to the physical storage TB Subscribed Capacity Space of the storage pool that is subscribed TB Subscribed Capacity Percentage Percentage of the storage pool that is subscribed Percent (%) Write Byte Rate Amount of data written to the storage pool. MB/s Application Classes 59

60 SEN_EMC_STORAGEPOOL_SYMM Parameters Name Description Units Default Alert Conditions Capacity Total space available in the storage pool TB Consumed Capacity Total size of the space actually allocated or reserved TB Consumed Capacity Percentage Percentage of the storage pool that is actually allocated or reserved Percent (%) Oversubscription Situation Ratio between the storage space actually used and the storage space reserved. This parameter can only be activated only for thin Storage Pool. An Alarm is triggered when the subscribed capacity percent equals 100 % and the consumed capacity is higher than 100 %. 1 = Warning 2 = Alarm Read Byte Rate Amount of data read from the storage pool MB/s Size Total space allocated to the physical storage TB Subscribed Capacity Space of the storage pool that is subscribed TB Subscribed Capacity Percentage Percentage of the storage pool that is subscribed Percent (%) Write Byte Rate Amount of data written to the storage pool. MB/s SEN_EMC_VOLUME Parameters Name Description Unit Default Alert Conditions Consumed Capacity Total size of the space actually allocated or reserved GB Consumed Capacity Percentage Percentage of the storage pool that is actually allocated or reserved Percent (%) Disk Time Utilization ** Percentage of disk time utilization Percent (%) 90% = Warning (for 5 consecutive collects) Current Owning Storage Processor Name of the current owning storage processor for this StorageVolume; and name of the default owning storage processor if the latter is different Hosts Hosts the volume is attached to. Host Visible Capacity Amount of space on the disk that is assigned to bound LUNs GB Mapped Indicates if the volume is linked to a Host. Application Classes 60

61 Paths * Lists the paths to the ports the volume is attached to. Raid Level Raid level of the volume Read Bytes Cumulative count of data read GB Read Byte Rate Count of data read MB/s Response Time ** Average time taken by the controller to complete a read and write requests during the polling period. ms 10 = Warning (for 2 consecutive collects) Storage Group Name of the Storage Group the volume belongs to. This defines the hosts that will be allowed to see and interact with the volume Volume Attributes Description of the Storage Volume attributes Write Bytes Cumulative count of data written GB Write Byte Rate Count of data written MB/s WWN Contains the WWN corresponding to this device, if applicable or know * Parameter not av ailable on C LA R iio N dev ices ** Parameters not av ailable on Sy mmetrix Vmax dev ices. SEN_EMC_VOLUME_CONT This application class has no parameters. Application Classes 61

62 -D- Index Debug Mode Enable Disk Array -A- Overall Activity Disk Space Alarm 48 Application Class SEN_EMC_CONTROLLER_CONT 56 SEN_EMC_DISKGROUP 57 SEN_EMC_DISKGROUP_CONT 57 SEN_EMC_FCPORT 57 SEN_EMC_MAIN 58 SEN_EMC_SMISPROVIDER 58 SEN_EMC_SMISPROVIDER_MANAGEDARRAY 59 Application Classes 27, 31, 54 Pool 45 SEN_EMC_ARRAY 54 SEN_EMC_CONTROLLER 43, 55 SEN_EMC_PHYSICALDISK 58 SEN_EMC_PHYSICALDISK_CONT 58 SEN_EMC_STORAGEPOOL_CLAR 59 SEN_EMC_STORAGEPOOLS_CLAR 60 SEN_EMC_VOLUME 39, 60 SEN_EMC_VOLUME_CONT 61 Architecture 16 -B- -EEfficiency Caching Mechanism 43 Element Profile Properties 27 Element Properties 31 EMC CIM Server 19 EMC Disk Arrays level 14 EMC Solutions Enable 19 Enable Statistics 12 -FFile Systems 10 Filer Configuration Files G14 Getting started How it works -CCategory 27, 31 Changes 7 Components IImprovements 7 Install / Un-install 34 Controllers 16 Disks 16 Fans 16 Fiber ports 16 Network ports 16 Power supplies 16 Index 50 Available 45 Consumption 45.par file Fixed Issues Basis Daily 46 Hourly 46 BMC ProactiveNet 40 Add User 19 Application classes 34 Array Provider 19 Authorization information Clariion Disk Array 19 Delete 34, 35 Element Profile

63 Install / Un-install 34 -N- EMC SMI-S Provider 19 Host Provider 19 Performance Managers 35 Prerequisites 12, 19 Removal 34 Requirements 12 SMI-S Provider 19 Issues 7 Navisphere Statistics 12 -OOverload Controllers 43 Storage Processor Overview 10 Owning 41 -KKnown Issues 7 -LLUN -P- 10, 41 Package 14 Parameters 57 Access 40 Activity 41 Busy 41 Hosts 40 Slow 39 Unmapped 45 Unused 45 Array ID 54 Available Capacity 54 Cache Dirty Pages Percentage 43, 55 Capacity 57, 59, 60 Consumed Capacity 45, 57, 59, 60 Consumed Capacity Percentage 45, 57, 59, 60 Disk Time Utilization 58, 60 Edit Thresholds 48 Firmware Revision 58 Host Visible Capacity 60 Hosts 60 Is Mapped 60 Last Refresh Time 59 Manufacturer 58 Memory Size 55 Model 58 Oversubscription Situation 38, 57, 59, 60 Owning Storage Processor 41, 60 Processor Utilization 43, 55 PROM Revision 55 Raid Level 59, 60 Read Byte Rate 41, 46, 50, 54, 57, 58, 59, 60 Read Bytes 58, 60 Read Cache Size 43, 55 Read Operations Percentage 55 Refresh Rate 59 Response Time 39, 43, 55, 58, 60 Revolutions per minute 58 -MMain 10 Metrics Available Disk Space 45 Available Spare Disks 37 Busy LUNs 41 Controllers Overload 43 Disk Array Usage Report 46 Disk Space Consumption 45 Efficiency of the Caching Mechanism File storage space 16 Input/Ouput 16 Overall Activity 50 Oversubscription Situations 38 Storage controller utiilization 16 Storage Processor Overload 43 Total Traffic 46 Unmapped LUNs 45 Unused LUNs 45 Index

64 Parameters 57 Serial Number 58 Size 54, 57, 58, 59, 60 Spare Disk Count 37, 54 Statistics 59 Status 54, 55 Status Information 54, 55 Storage Group 60 Subscribed Capacity 45, 54, 57, 59, 60 Subscribed Capacity Percentage 57, 59, 60 Transfer Byte Rate 55 Transfer Bytes 55 Type 60 Version 58 Volume Attributes 60 Write Byte Rate 41, 46, 50, 54, 57, 59, 60 Write Bytes 60 Write Cache Size 43, 55 Write Flush Byte Rate 43, 55 Write Flush Bytes 55 Write Operation Percentage 55 WWN 60 Platforms CLARiiON 24 Supported 24 Symmetrix 24 Port 27 Portal 12 Portal level 14 Powerlink 19 Profile 27 Properties -SService ECOM.exe Statistics Enable 12 Navisphere 12 Unisphere 12 Storage 27, 31 Storage Pool 58 System 10 Systems Windows -TTasks 25 Thin Provisioning Threshold 38 Disk Space 45 Edit 48 Oversubscription Situation Setting 48 Transport protocol 27 Unisphere Statistics Upload 25 -R- 12 -W31 Warning 48 What's New 7 Write Byte Rate 58 Write Bytes 58 Reference Guide 54 Release Notes 7 Report Index 27 -U- Collection interval 27 Credentials 27 Debug Mode 27 Hostname 27 Properties and Credentials Published 25 Disk Array Usage RSM

65 About BMC Software BMC Software, Inc. NYSE:BMC, is a leading provider of enterprise management solutions that empower companies to manage their IT infrastructure from a business perspective. Delivering Business Service Management, BMC Software solutions span enterprise systems, applications, databases, and service management. Founded in 1980, BMC Software has offices worldwide and fiscal 2004 revenues of more than $1.4 billion. For more information about BMC Software, visit About Sentry Software Sentry Software, a strategic Technology Alliance Partner of BMC Software, provides key monitoring solutions specifically designed to expand the capabilities of BMC Performance Manager, thus enabling up to 100% coverage of any infrastructure. Sentry Software specializes in single solutions for multiplatform monitoring of hardware, custom applications or any IT component, and blackout windows. Sentry Software products are deployed in 45 countries across the globe and lead the list of BMC Software s third-party product sales. For more information about Sentry Software, please visit