EMC Avamar Data Store Gen4S

Transcription

1 EMC Avamar Data Store Gen4S Customer Service Guide REV 04

2 Copyright EMC Corporation. All rights reserved. Published in the USA. Published May, 2016 EMC believes the information in this publication is accurate as of its publication date. The information is subject to change without notice. The information in this publication is provided as is. EMC Corporation makes no representations or warranties of any kind with respect to the information in this publication, and specifically disclaims implied warranties of merchantability or fitness for a particular purpose. Use, copying, and distribution of any EMC software described in this publication requires an applicable software license. EMC², EMC, and the EMC logo are registered trademarks or trademarks of EMC Corporation in the United States and other countries. All other trademarks used herein are the property of their respective owners. For the most up-to-date regulatory document for your product line, go to EMC Online Support ( EMC Corporation Hopkinton, Massachusetts In North America EMC Avamar Data Store Gen4S Customer Service Guide

3 CONTENTS Preface 5 Chapter 1 Replacing Avamar Data Store Components 9 ADS multi-node server component locations Utility node Single node Avamar servers Extended retention media access node NDMP accelerator node...11 Recommended tools and supplies Node components...11 Utility and accelerator nodes...12 M600, M1200, M2400, Avamar Business Edition (S2400), and Media Access Nodes...14 General information for removing and installing CRUs Avoiding Electrostatic Discharge (ESD) damage...17 Emergency procedures (without an ESD kit)...17 Removing, installing, or storing CRUs Identifying the node with the defective CRU...18 Chapter 2 Replacing a Hard Drive 21 Overview Locating the defective hard drive...22 Replacing a hard drive...23 Removing the hard drive Installing a hard drive Confirming the RAID rebuild Returning the defective CRU Chapter 3 Replacing a Power Supply 27 Overview Locating the defective power supply...28 Replacing a power supply...29 Removing the power supply Installing the power supply Verifying the replacement power supply Returning the defective CRU EMC Avamar Data Store Gen4S Customer Service Guide 3

4 CONTENTS 4 EMC Avamar Data Store Gen4S Customer Service Guide

5 Preface As part of an effort to improve its product lines, EMC periodically releases revisions of its software and hardware. Therefore, all versions of the software or hardware currently in use may not support some functions that are described in this document. The product release notes provide the most up-to-date information on product features. Contact your EMC technical support professional if a product does not function correctly or does not function as described in this document. Note This document was accurate at publication time. Go to EMC Online Support ( support.emc.com) to ensure that you are using the latest version of this document. Purpose This publication describes how to replace customer replaceable units (CRUs) on Avamar Data Store (ADS) Gen4S servers, media access nodes, and accelerator nodes. On standard configurations, CRUs include the following components: Node hard drives, which are housed in removable carriers Node power supply modules Contact EMC for service repairs of field-replaceable units (FRUs), which include the following: Storage nodes Utility nodes Media access nodes Accelerator nodes Allied Telesis and Brocade network switches Audience The information in this publication is intended for customers who are responsible for repairing ADS servers and individual nodes. EMC field personnel and partners should use SolVe Desktop documentation. Revision history The following table presents the revision history of this document. Table 1 Revision history Revision Date Description 01 October 25, 2012 Q4 Data Store Release February 11, 2013 ADS Gen4 General Availability 02 release 03 July 10, 2013 Initial release of Avamar May 9, 2016 Avamar 7.3 and Gen4T General Availability Related documentation The following EMC publications provide additional information: EMC Avamar Data Store Gen4S Customer Service Guide 5

6 Preface EMC Avamar Data Store Single Node Customer Installation Guide Special notice conventions used in this document EMC uses the following conventions for special notices: DANGER Indicates a hazardous situation which, if not avoided, results in death or serious injury. WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE Addresses practices that are not related to personal injury. Note Presents information that is important, but not hazard-related. Typographical conventions EMC uses the following type style conventions in this document: Table 2 Typographical conventions Bold Italic Monospace Used for names of interface elements, such as names of windows, dialog boxes, buttons, fields, tab names, key names, and menu paths (what the user specifically selects or clicks) Used for full titles of publications referenced in text Used for: System code System output, such as an error message or script Pathnames, file names, prompts, and syntax Commands and options Monospace italic Monospace bold Used for variables Used for user input [ ] Square brackets enclose optional values Vertical bar indicates alternate selections - the bar means or { } Braces enclose content that the user must specify, such as x or y or z... Ellipses indicate nonessential information omitted from the example 6 EMC Avamar Data Store Gen4S Customer Service Guide Where to get help The Avamar support page provides access to licensing information, product documentation, advisories, and downloads, as well as how-to and troubleshooting

7 Preface information. This information may enable you to resolve a product issue before you contact EMC Customer Support. To access the Avamar support page: 1. Go to 2. Type a product name in the Find a Product by Name box. 3. Select the product from the list that appears. 4. Click the arrow next to the Find a Product by Name box. 5. (Optional) Add the product to the My Saved Products list by clicking Add to My Saved Products in the upper right corner of the Support by Product page. Documentation The Avamar product documentation provides a comprehensive set of feature overview, operational task, and technical reference information. Review the following documents as well as product administration and user guides: Release notes provide an overview of new features and known limitations for a release. Technical notes provide technical details about specific product features, including step-by-step tasks, where necessary. White papers provide an in-depth technical perspective of a product or products as applied to critical business issues or requirements. Knowledgebase The EMC Knowledgebase contains applicable solutions that you can search for either by solution number (for example, esgxxxxxx) or by keyword. To search the EMC Knowledgebase: 1. Click Advanced at the upper right corner of the page, next to the icon. 2. Type either the solution number or keywords in the search box. 3. (Optional) Limit the search to specific products by clicking Advanced, then typing a product name in the Scope by product box and then selecting the product from the list that appears. 4. Select Knowledgebase from the Scope by resource list. 5. (Optional) Specify advanced options and values in the available fields. 6. Click the icon. Online communities Go to EMC Community Network ( for peer contacts, conversations, and content on product support and solutions. Interactively engage online with customers, partners, and certified professionals for all EMC products. Live chat To engage EMC Customer Support by using live interactive chat, click Join Live Chat on the Service Center panel of the Avamar support page. Service Requests For in-depth help from EMC Customer Support, submit a service request by clicking Create Service Request on the Service Center panel of the Avamar support page. EMC Avamar Data Store Gen4S Customer Service Guide 7

8 Preface Note To open a service request, you must have a valid support agreement. Contact your EMC sales representative for details about obtaining a valid support agreement or with questions about your account. To review an open service request, click the Expand link on the Service Center panel, click Manage Service Requests, and then click View and manage service requests. Facilitating support EMC recommends that you enable ConnectEMC and Home on all Avamar systems: ConnectEMC automatically generates service requests for high priority events. Home sends configuration, capacity, and general system information to EMC Customer Support. Your comments Your suggestions help EMC continue to improve the accuracy, organization, and overall quality of the user publications. Send your opinions of this document to techpubcomments@emc.com. Please include the following information: Product name and version Document name, part number, and revision (for example, 01) Page numbers Other details that help EMC address the documentation issue 8 EMC Avamar Data Store Gen4S Customer Service Guide

9 CHAPTER 1 Replacing Avamar Data Store Components This chapter provides an overview of the hardware environment in which you might perform customer replaceable unit (CRU) procedures for Avamar Data Store (ADS) Gen4S systems. Familiarize yourself with this information and the procedures in the following chapters before performing any component removal or replacement. Topics in this chapter include: ADS multi-node server component locations Node components...11 General information for removing and installing CRUs Identifying the node with the defective CRU...18 Replacing Avamar Data Store Components 9

10 Replacing Avamar Data Store Components ADS multi-node server component locations A 14-node example (1 utility node and 13 active storage nodes) of the initial configuration of a standard ADS multi-node server is shown here. Initial configurations range from 4 to 18 nodes (one utility node plus a maximum of 16 active storage nodes and one optional spare storage node). When performing remove and replace procedures in this document, use this diagram to determine component locations. Figure 1 Multi-Node Layout Because previous component replacement might have changed the arrangement of nodes in the rack, always use the instructions in this guide to verify the location of a defective component before continuing. Since a spare can replace any defective storage node, and because a replacement node can become the new spare, the location of any specific storage node can vary over time. Each rack configuration has 40U capacity. For Gen4S, the utility node takes up a 1U increment. All storage nodes take up 2U increments. The utility node is at the bottom of a multi-node configuration, with active storage nodes and an optional spare storage node stacked above it. Additional nodes can be added in expansion slots starting with the lowest available slot. Switches A and B at the top are ADS internal network switches. Switch A is the bottom one. 10 EMC Avamar Data Store Gen4S Customer Service Guide

11 Replacing Avamar Data Store Components The minimum ADS multi-node configuration is one utility node and three storage nodes. The maximum is 1 utility node, 16 active storage nodes, and an optional spare storage node. Utility node In scalable multi-node Avamar servers, a single utility node provides essential internal services for the server (for example, administrator server, replication, external authentication, network time protocol [NTP], and Web access). Because utility nodes are dedicated to running these essential services, they cannot be used to store backups. Single node Avamar servers Extended retention media access node NDMP accelerator node Recommended tools and supplies Node components Single node servers are individual Avamar storage nodes configured to perform both utility node and storage node functions. The information in the following chapters accounts for both single node and multi-node CRU servicing. The media access node exports backup data from an Avamar server to a tape library (physical or virtual) for long-term retention purposes. It has a 10GbE port and an HBA port that allows a tape device to be connected directly to the node via fiber-optic cable. It is not part of an ADS server (not connected to the Avamar multi-node system s internal network). An Avamar NDMP accelerator (accelerator node) is a dedicated single-node Avamar client that, when used as part of an Avamar system, provides a complete backup and recovery solution for supported EMC Isilon, VNX, VNXe, and Celerra systems, and NetApp filers by using Network Data Management Protocol (NDMP) to communicate with these storage devices. It is not part of the ADS server. To perform the CRU replacement procedures in the chapters that follow, no tools or additional supplies are required. The PuTTY SSH client will be used throughout the CRU replacement procedures. Before handling ADS Gen4S equipment, first familiarize yourself with the Gen4S node types and component locations for your specific hardware. See the figures and tables that follow for details. Utility node 11

12 Replacing Avamar Data Store Components Utility and accelerator nodes Figure 2 Front View Table 3 Front panel components Feature Service tag Hard drives Front control panel Description A pull-out label for node serial number and other system information. Two hot swappable 2.5 hard drives, in the 0 and 1 drive locations. A set of buttons, controls, and indicators: System ID button - Use to locate a particular node in the rack. When pushed, the LED on the front and the system status indicator on the back panel flash blue until the button is pushed again. Non-Maskable Interrupt (NMI) button - Use to troubleshoot software and device driver errors. Press by using the end of a paper clip. When pressed, it puts the node in a halt state and issues the NMI. Use this button only if directed to do so by qualified support personnel. NIC activity LEDs - One LED per NIC on the back panel. Network link detected = LED solid on. Network activity = LED blinking according to activity. System Cold Reset Button - Reboots and reinitializes the node. System Status LED - Green or amber LED showing system health. Solid green indicates the node is booted and ready. All other states indicate a level of degraded status, which should be reported through Avamar systems. 12 EMC Avamar Data Store Gen4S Customer Service Guide

13 Replacing Avamar Data Store Components Table 3 Front panel components (continued) Feature Description Power Button with Integrated LED - Toggles system power on and off. Hard Drive Activity LED - Indicates drive activity from onboard controllers. Figure 3 Rear View - Utility Node Table 4 Rear panel components Feature Power supply #1 Power supply #2 NICs 1-8 Monitor port Serial port USB ports RMM4 port Description 750W power supply 750W power supply 10/100/1000baseT GbE ports Connects a VGA display to the system. Connects a serial device to the system. Connects a USB device to the system Dedicated management port for the RMM4 card. Figure 4 Rear View - Accelerator Node Table 5 Rear panel components Feature Power supply #1 Description 750W power supply Utility and accelerator nodes 13

14 Replacing Avamar Data Store Components Table 5 Rear panel components (continued) Feature Power supply #2 NICs 1-4 or 1-6 Description 750W power supply 10GbE model: 10/100/1000baseT GbE ports (NICs 1-4) and 10GbE ports (NICs 5 and 6) (depending on model) 1GbE model: 10/100/1000baseT GbE ports (NICs 1-4) Monitor port Serial port USB ports RMM4 port Connects a VGA display to the system. Connects a serial device to the system. Connects a USB device to the system Dedicated management port for the RMM4 card. M600, M1200, M2400, Avamar Business Edition (S2400), and Media Access Nodes Figure 5 Front View Table 6 Front panel components Feature Service tag Hard drives Description A pull-out label for serial number and other system information. Hot swappable 3.5 hard drives: M600 node - Six in the 0 through 5 drive locations. All others are blank. M1200 node - Six in the 0 through 5 drive locations. All others are blank. 14 EMC Avamar Data Store Gen4S Customer Service Guide

15 Replacing Avamar Data Store Components Table 6 Front panel components (continued) Feature Description M2400 node - 12 in the 0 through 11 drive locations. Avamar Business Edition (S2400) node - Eight in the 0 through 7 drive locations. All others are blank. Media access node - Twelve in the 0 through 11 drive locations. Front control panel A set of buttons, controls, and indicators: System ID button - Use to locate a particular node in the rack. When pushed, the LED on the front and the system status indicator on the back panel flash blue until the button is pushed again. Non-Maskable Interrupt (NMI) button - Use to troubleshoot software and device driver errors. Press by using the end of a paper clip. When pressed, it puts the node in a halt state and issues the NMI. Use this button only if directed to do so by qualified support personnel. NIC activity LEDs - One LED per NIC on the back panel. Network link detected = LED solid on. Network activity = LED blinking according to activity. System Cold Reset Button - Reboots and reinitializes the node. System Status LED - Green or amber LED showing system health. Solid green indicates the node is booted and ready. All other states indicate a level of degraded status, which should be reported through Avamar systems. Power Button with Integrated LED - Toggles system power on and off. Hard Drive Activity LED - Indicates drive activity from onboard controllers. Figure 6 Rear View - M600, M1200, M2400, and Avamar Business Edition (S2400) Nodes M600, M1200, M2400, Avamar Business Edition (S2400), and Media Access Nodes 15

16 Replacing Avamar Data Store Components Table 7 Rear panel components Feature Power supply #1 Power supply #2 NICs 1-8 Monitor port Serial port USB ports RMM4 port Description 750W power supply. 750W power supply. 10/100/1000baseT GbE ports. Connects a VGA display to the system. Connects a serial device to the system. Connects a USB device to the system. Dedicated management port for the RMM4 card. Figure 7 Rear View - Media Access Node Table 8 Rear panel components Feature Power supply #1 Power supply #2 Fiber optic ports NICs GbE ports Description 750W power supply. 750W power supply. Dual Qlogic 8 Gbps fibre channel ports - connects a tape library or VTL to the node. 10/100/1000baseT GbE ports. Dual 10Gb Ethernet ports: Left: NIC 9 (eth8) Right: NIC 10 (eth9) Monitor port Serial port USB ports Connects a VGA display to the system. Connects a serial device to the system. Connects a USB device to the system. 16 EMC Avamar Data Store Gen4S Customer Service Guide

17 Replacing Avamar Data Store Components Table 8 Rear panel components (continued) Feature RMM4 port Description Dedicated management port for the RMM4 card. General information for removing and installing CRUs This section describes precautions you must take and general procedures you must follow when removing, installing, or storing CRUs. The procedures in this section apply to CRU handling during general replacement. Avoiding Electrostatic Discharge (ESD) damage When replacing or installing CRUs, you can inadvertently damage the sensitive electronic circuits in the equipment by simply touching them. Electrostatic charge that has accumulated on your body discharges through the circuits. If the air in the work area is very dry, running a humidifier in the work area helps decrease the risk of ESD damage. You must use the following procedures to prevent damage to the equipment, so read the following instructions carefully. Provide enough room to work on the equipment. Clear the work site of any unnecessary materials or materials that naturally build up electrostatic charge, such as foam packaging, foam cups, cellophane wrappers, and similar items. Do not remove replacement or upgrade CRUs from their antistatic packaging until you are ready to install them. Gather the ESD kit and all other materials you will need before you service a component. Once servicing begins, you should avoid moving away from the work site; otherwise, you may build up an electrostatic charge. Use the ESD kit when handling any CRU. If an emergency arises and the ESD kit is not available, follow the procedures in the section Emergency procedures (without an ESD kit) on page 17. Use the ESD wristband that is supplied with your system. To use it, attach the clip of the ESD wristband (strap) to any bare (unpainted) metal on the cabinet enclosure; then secure the wristband around your wrist with the metal button against your skin. Emergency procedures (without an ESD kit) In an emergency, when an ESD kit is not available, use the following procedures to reduce the possibility of an electrostatic discharge by ensuring that your body and the subassembly are at the same electrostatic potential. Note These procedures are not a substitute for the use of an ESD kit. You should follow them only in the event of an emergency. Before touching any CRU, touch a bare (unpainted) metal surface of the enclosure. Before removing any CRU from its antistatic bag, place one hand firmly on a bare metal surface of the enclosure, and at the same time, pick up the CRU while it is still sealed in the antistatic bag. Once you have done this, do not move around the room or contact other furnishings, personnel, or surfaces until you have installed the CRU. General information for removing and installing CRUs 17

18 Replacing Avamar Data Store Components Removing, installing, or storing CRUs When you remove a CRU from the antistatic bag, avoid touching any electronic components and circuits on it. If you must move around the room or touch other surfaces before installing a CRU, first place the CRU back in the antistatic bag. When you are ready again to install the CRU, repeat these procedures. Use the following precautions when you remove, handle, or store CRUs: Do not remove a CRU from the cabinet until you have the replacement available. Handle a CRU only when wearing a properly attached ESD wristband: Attach the clip of the ESD wristband to the ESD bracket or to a bare metal portion of the CRU's enclosure. Secure the wristband around your wrist with the metal button against your skin. Handle a CRU gently. A sudden jar, drop, or vibration can permanently damage some CRUs. The weight of some CRUs is not evenly distributed. To prevent personal injury or equipment damage when removing, installing, or handling theses CRUs, use both hands and provide extra support at the heavy end of the CRU. Never use excessive force to remove or install a CRU. Store a CRU in the antistatic bag and the specially designed shipping container in which you received it. Use this special shipping container when you need to return the CRU. If you need to store a CRU for a short time, make sure the temperature of the location where you store CRU is within the limits specified by the CRU's Technical Specifications. Identifying the node with the defective CRU The following describes how to identify the node that requires service. Before you begin CAUTION Never press on the middle of the bezel. Pressing on the middle of the bezel might result in damage to the node. Procedure 1. From the front of the cabinet, press both tabs on the front of the bezel. 18 EMC Avamar Data Store Gen4S Customer Service Guide

19 Replacing Avamar Data Store Components Figure 8 Remove Bezel 2. Pull the bezel away straight from the rack. 3. Locate the service tag on the left side of the front of the node. Figure 9 Service Tag Location (Storage or Media Access Node) Figure 10 Service Tag Location (Utility or Accelerator Node) 4. Pull the service tag out to reveal the serial number of the node. 5. For the node with the defective hard drive, leave the bezel off. For all others, replace the bezel. a. Press the bezel onto the latch brackets by pushing on the ends of the bezel until it snaps into place. Identifying the node with the defective CRU 19

20 Replacing Avamar Data Store Components Figure 11 Install Bezel 20 EMC Avamar Data Store Gen4S Customer Service Guide

21 CHAPTER 2 Replacing a Hard Drive This chapter describes how to replace a hot-pluggable hard drive in an ADS Gen4S node. The following are the replacement hard drive and filler part numbers for your ordering convenience: Gen4S utility nodes and accelerator nodes: Gen4S M600 nodes: Gen4S M1200, M2400, Avamar Business Edition (S2400), and media access nodes: Topics in this chapter include: Overview Locating the defective hard drive...22 Replacing a hard drive...23 Confirming the RAID rebuild Returning the defective CRU Replacing a Hard Drive 21

22 Replacing a Hard Drive Overview The following instructions call for hard drives in removable carriers to be removed from and replaced in a backplane in the node's chassis. Note Use only hard drives that are tested and approved for use with ADS Gen4T nodes. Replacement hard drives arrive blank at the customer site and they require no manual configuration. RAID software automatically rebuilds the hard drive image when the new one is detected. Before performing the following procedure, obtain the following information about the Avamar system or node, as applicable: The fully qualified domain name of the Avamar server The service tag or serial number of the Avamar node with the defective hard drive The IP address of the Avamar node with the defective hard drive The physical hard disk ID for the defective hard drive Note If you do not have this information, contact EMC Technical Support before continuing. To avoid inadvertently damaging sensitive electronic circuits in the equipment, ensure that you follow precautions and general safety procedures when removing, installing, or storing CRUs. See General information for removing and installing CRUs on page 17. Locating the defective hard drive After locating the node requiring service, verify which hard drive must be replaced by performing the following: Procedure 1. Using PuTTY, the IP address of the node, and a computer on the customer network with access to the node, establish an SSH session to the node. 2. Log in as the admin user. 3. Change to the root user by typing: su - 4. Check the hard drive to be replaced by typing on a single command line: avsysreport pdisk egrep 'Status Slot Number Enclosure Device' Output similar to the following is displayed: Status : Ok Slot Number : 0 Enclosure Device ID : 25 Status : Ok Slot Number : 1 Enclosure Device ID : 25 Status : Ok Slot Number : 2 Enclosure Device ID : 25 Status : Ok Slot Number : 3 22 EMC Avamar Data Store Gen4S Customer Service Guide

23 Replacing a Hard Drive Enclosure Device ID : 25 Status : Offline Slot Number : 4 Enclosure Device ID : 25 Status : Ok Slot Number : 5 Enclosure Device ID : 25 Status : Ok Slot Number : 6 Enclosure Device ID : 25 Status : Ok Slot Number : 7 Enclosure Device ID : 25 Status : Ok Slot Number : 12 Enclosure Device ID : 25 In the output above, the hard drive whose status is not Ok is the one that must be replaced. Take note of the Enclosure Device ID and Slot Number of the hard drive for use in the remaining tasks. Note If all hard drives are Ok, confirm the drive bay number for the drive to be replaced. Contact EMC Customer Support for clarification. Replacing a hard drive Removing the hard drive After identifying the node and the defective hard drive, perform the following steps to replace the hard drive. Procedure 1. Using the physical disk ID provided by EMC Customer Support and verified above, locate the defective hard drive. Figure 12 Hard Drive Location (Storage or Media Access Node) Replacing a hard drive 23

24 Replacing a Hard Drive Figure 13 Hard Drive Location (Utility or Accelerator Node) Use this physical location numbering sequence to identify the defective hard drive for all node types. Typically, the sled LED indicator turns solid amber or is off when the hard drive has failed. 2. Compare the label on the front of the defective and replacement hard drives to ensure that you are replacing the defective hard drive with the same equipment. 3. If you are replacing hard drive 9, 10, or 11, swing the front control panel to the right. 4. On the defective hard drive, press the release button, and then open the drive handle. Figure 14 Hard Drive Removal Installing a hard drive 5. Pull the disk drive assembly from the node chassis until it is free of the drive bay. Before you begin CAUTION When installing a hard drive, ensure that the adjacent hard drives are fully installed. Trying to insert and lock a hard drive carrier next to a partially installed carrier can damage the adjacent carrier and render it unusable. CAUTION Never press on the middle of the bezel. Pressing on the middle of the bezel might result in damage to the node. Procedure 1. Press the release button on the front of the hard drive carrier and open the handle. 2. With the handle on the replacement hard drive carrier in the fully open position, insert the hard drive carrier into the drive bay until the carrier contacts the backplane. Ensure that the hard drive is fully seated in the chassis before continuing. 24 EMC Avamar Data Store Gen4S Customer Service Guide

25 Replacing a Hard Drive Figure 15 Hard Drive Installation 3. Close the handle to lock the hard drive in place. 4. Press the bezel onto the latch brackets by pushing the ends of the bezel until it snaps into place. Figure 16 Bezel Installation Confirming the RAID rebuild After replacing a hard drive, the RAID system automatically begins rebuilding the data. Typically, the sled LED begins blinking while the hard drive is rebuilding. Confirm that the rebuild is successful by performing the following steps: Procedure 1. In the existing PuTTY terminal session, type the following command on a single line: avsysreport pdisk pdisk=<enclosure Device ID>:<Slot Number> where <Enclosure Device ID> and <Slot Number> are the ID numbers that you noted previously. Output similar to the following is displayed: === Physical disks Physical Disk ID : 4 Status : Ok State : Rebuilding Confirming the RAID rebuild 25

26 Replacing a Hard Drive Write Caching : Disabled Media Error Count : 0 Firmware Revision : AAA0 Serial Number : YFGHH37A Device Speed : 6.0 Gb/s Media Type : Hard Disk Device Slot Number : 4 Product ID : HUA723020ALA640 Other Error Count : 0 Formatted Size : TB Raw Size : TB Native Command Queueing : Enabled Link Speed : 6.0 Gb/s Failure Predicted : No Enclosure Device ID : 25 Device ID : 28 Rebuild Progress : 0% Vendor : Intel Disk Type : SATA SAS Address : E3B0BF0A4 Predictive Failure Count : 0 The State for the hard drive that you replaced should be Rebuilding. Note If the State of the replacement disk drive is not Rebuilding, the node has more serious problems than just a defective hard drive. In this case, arrange for a complete node replacement. 2. Note the values for Write Caching, Rebuild Progress (a percentage), and State (Rebuilding). The RAID rebuild process can take hours to complete. It is finished when State is Online, Write Caching is Disabled, and Rebuild Progress is Not Applicable. 3. Close the terminal window. Returning the defective CRU Package the defective CRU and return it to the factory. Use the box and packing from the replacement CRU. 26 EMC Avamar Data Store Gen4S Customer Service Guide

27 CHAPTER 3 Replacing a Power Supply This chapter describes how to replace a power supply (EMC part number ) in an ADS Gen4S node. Topics in this chapter include: Overview Locating the defective power supply...28 Replacing a power supply...29 Verifying the replacement power supply Returning the defective CRU Replacing a Power Supply 27

28 Replacing a Power Supply Overview Each ADS Gen4S node contains two power supplies, the second serving as a redundant, hot-swappable power source. The node requires at least one power supply to operate normally. The node is in redundant mode when two power supplies are installed and both power supplies are connected to an AC power source. If either power supply fails, it can be replaced during normal system operation. The following conditions must be noted: Table 9 Conditions Scenario Power supply removal in a node that is powered on Extended operation with only one power supply Requirement Remove only one power supply at a time. If one power supply must be removed for an extended period, the remaining power supply must be installed in the left bay and a blank installed in the other bay. Before performing the following procedure, obtain the following information about the Avamar system or node, as applicable: The fully qualified domain name of the Avamar server The service tag or serial number of the Avamar node with the defective power supply The IP address of the Avamar node with the defective power supply Note If you do not have this information, contact EMC Technical Support before continuing. To avoid inadvertently damaging sensitive electronic circuits in the equipment, ensure that you follow precautions and general safety procedures when removing, installing, or storing CRUs. See General information for removing and installing CRUs on page 17. Locating the defective power supply After locating the node requiring service, verify which power supply must be replaced by performing the following: Before you begin CAUTION Ensure that you correctly locate the defective power supply. Removing the wrong power supply may abruptly power off the node and cause numerous problems. Procedure 1. Using PuTTY, the IP address of the node, and a computer on the customer network with access to the node, establish an SSH session to the node. 2. Log in as the admin user. 3. Change to the root user by typing: su - 28 EMC Avamar Data Store Gen4S Customer Service Guide

29 Replacing a Power Supply 4. Verify the serial number by typing: ipmitool fru print 0 grep "Serial" Output similar to the following is displayed: Board Serial : FLDCU Identify the defective power supply by typing: avsysreport power-supply Output similar to the following is displayed: === Power supply redundancy Status : Critical Redundancy State : Redundancy Lost === Power supplies Power Supply ID : 0 Status : Ok Location : PS1 Operational State : Presence detected Firmware Revision : <Undefined> Serial Number : <Undefined> Power Supply ID : 1 Status : Critical Location : PS2 Operational State : Presence detected Firmware Revision : <Undefined> Serial Number : <Undefined> One of the two power supplies should have a status that is not Ok or an operational state that is not Presence detected. This identifies which power supply is not working (PS1 or PS2). Figure 17 Power Supply Locations 6. From the back of the cabinet, locate the defective power supply. Typically, the LED indicator turns amber when the power supply has failed. Replacing a power supply After identifying the ADS server, node, and defective power supply, perform the following steps to replace the power supply. Replacing a power supply 29

30 Replacing a Power Supply Removing the power supply Before you begin WARNING Use caution when removing a defective power supply. It may be hot. Procedure 1. Undo the retaining clip securing the AC power cord and unplug the power cord from the power supply. 2. Push the green latch on the defective power supply to the left while pulling out the power supply by the handle. Figure 18 Power Supply Removal (Utility and Accelerator Nodes) Figure 19 Power Supply Removal (Storage, Single, and Media Access Nodes) Installing the power supply Procedure 1. Using the functioning power supply as a guide, orient the new power supply in the chassis opening. 30 EMC Avamar Data Store Gen4S Customer Service Guide

31 Replacing a Power Supply Figure 20 Power Supply Installation (Utility and Accelerator Nodes) Figure 21 Power Supply Installation (Storage, Single, and Media Access Nodes) 2. Insert the power supply into the power supply cage and push until it clicks into place. 3. Connect the AC power cord to the power supply and fasten the retaining clip to secure the power cord. 4. Allow several seconds for the node to recognize the power supply and determine whether it is functioning correctly. The power supply status indicator should illuminate green when the power supply is functioning correctly. Verifying the replacement power supply Procedure 1. Type the following command: avsysreport power-supply Output similar to the following is displayed: === Power supply redundancy Status : Ok Redundancy State : Fully Redundant === Power supplies Power Supply ID : 0 Status : Ok Location : PS1 Operational State : Presence detected Firmware Revision : <Undefined> Serial Number : <Undefined> Verifying the replacement power supply 31

32 Replacing a Power Supply Power Supply ID : 1 Status : Ok Location : PS2 Operational State : Presence detected Firmware Revision : <Undefined> Serial Number : <Undefined> Both power supplies should have the status Ok and the operational state Presence detected. The system redundancy state should be Fully Redundant. 2. Close the terminal window. Returning the defective CRU Package the defective CRU and return it to the factory. Use the box and packing from the replacement CRU. 32 EMC Avamar Data Store Gen4S Customer Service Guide