NEC Express5800 Series MegaMonitor for Linux Installation and Operation Manual

Transcription

1 NEC Express5800 Series MegaMonitor for Linux Installation and Operation Manual 3rd Edition C

2 Preface The manual explains MegaMonitor for Linux, a RAID system monitoring utility for disk array controllers provided by LSI Logic. The guide is intended for persons who are familiar with Linux functions and operation methods. For details on or unclear points on Linux operation, see Linux Online Help or manuals. Copyrights LSI Logic and MegaRAID are registered trademarks of LSI Logic Corporation. Linux is a trademark or registered trademark of Linus Torvalds in the United States and other countries. Microsoft, Windows, Windows NT, and MS-DOS are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. Windows XP is an abbreviation of Microsoft Windows XP Professional operating system. Windows 2000 is an abbreviation of Microsoft Windows 2000 Professional operating system. Windows NT is an abbreviation of Microsoft Windows NT Workstation operating system version 3.51/4.0. All company names and product names mentioned herein are trademarks or registered trademarks of their respective companies. Notes: (1) No part of this manual may be reproduced in any form without the prior written permission of NEC Corporation. (2) The contents of this guide may be revised without prior notice. (3) The contents of this guide shall not be copied or altered without the prior written permission of NEC Corporation. (4) All efforts have been made to ensure the accuracy of all information in this guide. If you notice any part unclear, incorrect, or omitted in this guide, contact the sales agent where you purchased this product. (5) NEC assumes no liability arising from the use of this product, nor any liability for incidental or consequential damages arising from the use of this guide regardless of Item (4) 2

3 Contents 1. Overview Installation/Uninstallation Procedure Operation Event Log Alert report Precautions...9 3

4 1. Overview MegaMonitor for Linux (hereinafter abbreviated to MegaMonitor) monitors the RAID system of the server-connected disk array controller (MegaRAID controller) provided by LSI Logic Corporation. MegaMonitor provides the following functions. - Logging of the array condition - notification to administrator if mail notification function is enabled - Notification to ESMPRO/Server Manager - Scheduling of consistency check 2. Installation/Uninstallation Procedure 2.1 Installing MegaMonitor 1. Copy a MegaMonitor package file (. rpm) to any directory. 2. Install MegaMonitor. rpm -Uvh megamon-eng-x.x-x.i386.rpm ( X.X-X is Version number) ex) rpm Uvh megamon-eng i386.rpm (For when using Ver3.7) 3. Please check that MegaMonitor has been installed correctly. rpm -qi megamon-eng The installation of MegaMonitor is completed. Please reboot the system. 2.2 The version check method of MegaMonitor The version of MegaMonitor can be checked by checking the /var/log/megaserv.log file using text editors, such as vi. The contents of /var/log/megaserv.log (in the case of Ver.3.7) RAID Monitor Service Ver Linux 3.7 Mar 15, 2005 started 2.3 Uninstalling MegaMonitor 1. Uninstall MegaMonitor. rpm -ev megamon-eng The uninstallation of MegaMonitor is completed. 4

5 3. Operation You can manipulate MegaMonitor by executing the following commands. (1) Starting MegaMonitor Command: MegaCtrl -start Function: Starts MegaMonitor. When OS starts up, MegaMonitor is started automatically. Therefore, you do not need to execute the command usually. If MegaMonitor stopped during operation, you can start it by executing this command. (2) Stopping MegaMonitor Command: MegaCtrl -stop Function: Stops MegaMonitor. The command does not stop consistency check and rebuilding currently being activated. Executing the command disables log registration and consistency check setting. (3) Pausing MegaMonitor Command: MegaCtrl -pause Function: Pauses MegaMonitor. (4) Resuming MegaMonitor Command: MegaCtrl -resume Function: Resumes MegaMonitor after Pause. (5) Setting log file name Command: MegaCtrl -log filename Function: Creates a log file with the name you specified. The file name is /var/log/megaserv.log in default. (6) Setting consistency check scheduling Command: MegaCtrl -cons Function: Sets consistency check scheduling. The options that can be used are as follows. Specify these options after MegaCtrl - cons. -hx X: 0-23 Specify time. (Default: 0) -dx X: 0-6 Specify the day of the week. (Default: 0. 0 indicates Sunday.) -wx X: indicates everyday. -d is ignored if 0 is set. Other numbers indicates the interval of weeks. (Default: 1) When -w is set to other value than 0 (including 1, default value), the consistency check will not be performed on the first date scheduled. The check starts from the second time (scheduled date). -datemm/dd/yyyy The consistency check starts from that time/date/week with settings above. YYYY: abort -LogProgXXXX Stops the consistency check currently being activated. Sets the interval of the progress report of consistency check. Unit: second Note that the interval settings for other log registrations are also changed if the option is changed. When the version of MegaMonitor is newer than v3.7, the log registration interval is the value specified in /etc/megapoll.conf. For details, see (11) Change of a polling interval. ex.) The consistency check is performed every Sunday at 0. MegaCtrl -cons -h0 -d0 -w1 (7) Setting consistency check enabled/disabled 5

6 Command: MegaCtrl -enchkcon MegaCtrl dischkcon Function: Sets the consistency check to be enabled or disabled. The option becomes enabled when scheduling is set. The scheduling date is not changed even if the option is set to be disabled. (8) Setting S.M.A.R.T. log check enabled/disabled Command: MegaCtrl -SMARTxxxx Function: Sets the S.M.A.R.T. log check to be enabled or disabled. The default value is enabled. xxxx: Interval of S.M.A.R.T. log check. Unit: second : Log check will be performed. Interval is the input value. 1-20: Log check will be performed. Interval is 20. 0: Log check will not be performed. (9) Setting notification enabled/disabled Command: MegaCtrl enmail MegaCtrl dismail Function: Sets notification to be enabled or disabled. The default value is Disabled. (10) Showing help Command: MegaCtrl -help MegaCtrl? Function: Shows the help screen. (11) Change of a polling interval Only when newer than v3.7 MegaMonitor issues the command to the array controller at fixed intervals to acquire information. When this command is issued, the performance of access to HDDs slightly degrades. However, since the command interval can be changed, when the impact on your system is large, please change the command interval. The default interval is about 300 seconds. If the interval is set as a big value, the impact on the HDD access performance by issuing the command can be reduced. However, at the same time, it may take more time to detect a failure generated in the array. (Example: In the case of the default 300-second interval, a failure can be detected in 300 seconds at the maximum) You can change the interval to issue the command in the following procedures. 1. Open /etc/megapoll.conf using text editors, such as vi, and edit the value of [$pollinginterval]. [/etc/megapoll.conf] $pollinginterval After you finish editing /etc/megapoll.conf, execute the following commands and restart MegaMonitor. /etc/rc.d/init.d/raidmon stop /etc/rc.d/init.d/raidmon start The change of Interval value is completed. 4. Event Log You can acquire the event log from either following three: (1) /var/log/megaserv.log 6

7 (2) A file specified with the MegaCtrl -log command (3) Notification to administrator (when notification function is enabled by executing the MegaCtrl -enmail command) 5. Alert report The events regarding MegaRAID can be monitored by using ESMPRO/AlertManager and ESMPRO/ServerManager. 5-1.When monitoring MegaRAID events by ESMPRO/ServerManager When you monitor MegaRAID eventsby ESMPRO/ ServerManager, please perform the following registration and setup of registry data after installing ESMPRO/ ServerManager in a Windows system. (ESMPRO/ ServerManager can be installed only in a Windows system.) The contents of registry to be registered Please set up the following keys, names, and other data. [HKEY_LOCAL_MACHINE\SOFTWARE\NEC\NVBASE\AlertViewer\AlertType\MegaMonitor] "WavDefault"=" Default.wav" "AniDefault"="Default.bmp" "Image"="Default.bmp" "SmallImage"="Default.bmp" The left side of "=" is a name and the right side is data. Both are character strings Please set the following right to access for the added alert type key ( \AlertType\MegaMonitor) in Windows XP, Windows 2000, and Windows NT. Administrators Everyone SYSTEM ESMPRO user group Control Read Only Full Control Full Control An ESMPRO user group is the group name specified at the time of ESMPRO/ServerManager installation. Please see the data of the following registry to get the group name. [HKEY_LOCAL_MACHINE\SOFTWARE\NEC\NVBASE] NAME: LocalGroup 7

8 5-2.Alert message list The alert message list of MegaRAID is shown below. Message ID message Solution Manager 2014 Adapter %1 Logical Drive %2 is OPTIMAL. None 4023 Adapter %1 Logical Drive %2 is DEGRADED Adapter %1 Logical Drive %2 is OFFLINE C2 40C D Adapter %1 Logical Drive %2 is in Checking Consistency Progress. Please check whether there is any failure in a physical drive. Please perform REBUILD after appropriate measures are implemented. Please check whether there is any failure in a physical drive or a cable. Please perform reconstruction of a logical drive after appropriate measures are implemented. None - Adapter %1 Channel %2 Target %3: Physica None Drive[%4] is Changed to ONLINE. Adapter %1 Channel %2 Target %3: Physical Drive[%4]is Changed to REBUILD. None Adapter %1 Channel %2 Target %3: Physical Drive[%4]is Changed to HOTSPARE None Adapter %1: Battery Voltage LOW. Adapter %1: Battery Fast Charging FAILED. Adapter %1 Channel %2 Target %3: Physical Drive[%4] is Changed to FAILED. Adapter %1 Channel %2 Target %3: Physical Drive[%4] is in FAILED state. Adapter %1 Channel %2 Target %3: Physical Drive[%4] is Changed to READY. Adapter %1 Channel %2 Target %3: Physical Drive[%4] is in READY state. Battery Backup Module PRESENT but Battery Backup Pack is Missing. Adapter %1,Channel %2,Target %3: is going Please check connection of a battery. Please replace batteries to new ones, if there is no problem in connection. Please check connection of a battery. After appropriate measures are implemented, when the status is FAILED, please perform REBUILD. Please check whether there is any failure in a Physical Drive. After suitable measurement, if the status is still FAILED, please REBUILD. Please specify a hotspare disk when the status is READY. Please check whether the battery is mounted. to FAIL Please replace the physical drive having S.M.A.R.T. Adapter %1,Channel %2,Target %3: is going errors. to FAIL.(Test) The table shows the event IDs in decimal. The events with "" listed in the table are reported to NEC ESMPRO Manager. All events are notified as information message. The symbols such as %1 in messages are padding characters. 8

9 6. Precautions - Follow the mail settings of the system when transferring mail notified by the notification function to the other servers. - A message registered by MegaMonitor immediately after OS startup may be notified although the notification at MegaMonitor startup (including OS startup) is disabled in default. - If the memory usage becomes higher during system operation, the following message may be displayed. The message does not indicate that some faults occur in MegaRAID. The message will be disappeared when the memory capacity becomes lower. "Error MEGAIOCCMD ioctl call failed." will be displayed on the console. "ReadEnq: Failed to Read 40-Ld NVRAM cfg, adp-1(fw err=ffffffff)" will be registered in the event log file. "megaraid allocation failed." will be registered in the system event log. 9