vnx_p_replace_sp_power_supply.pdf

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Here is Your Customized Document

Your Configuration is:

SP Replace a storage processor power supply

Model - VNX5300

Storage Type - Unified (NAS and SAN)Document ID - 1403531476412

Reporting Problems

To send comments or report errors regarding this document,please email: [email protected] Issues not related to this document, contact your service provider.Refer to Document ID:1403531476412Content Creation Date June 23, 2014


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EMC VNX Series

Replacing a storage processor power supply

May, 2014

This document describes how to replace a power supply in an EMC VNX5300 in a diskprocessor enclosure (DPE).

Note

Do not completely remove assembly- or enclosure-level hardware from the system or rackunless specifically directed. Figures in this procedure depict hardware completely removedto increase their clarity.

For additional details on the loc ations of orderable parts, and their part number labels,refer to the parts location guide for your specific VNX model. EMC posts and maintainsparts location guides online on the Related Documents section of https://MyDocs.emc.com/VNX. On the Related Documents page, under the VNX Hardware Partsheading, c lick on the desired guid e.

Topics include:u Before you begin ........................................................................................................2u Preparing the system ................................................................................................. 4u Replace the faulted storage processor Power Supply module ..................................... 5u Finishing up ............................................................................................................... 9
https://mydocs.emc.com/VNXhttps://mydocs.emc.com/VNXhttps://mydocs.emc.com/VNX


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Before you beginBefore you begin this maintenance activity, refer to the component handling instructions. You should also review the entire procedure prior to beginning any maintenance activity

on the system.

Summary of tasks for replacing a power supplyTo replace a power supply in a DPE you must complete the tasks below in the order inwhich they appear. This document provides instructions for completing each task.

1. Disabling notifications

2. Identify the faulted power supply.

3. Remove the faulted power supply.

4. Install the replacement power supply.

5. Verify the operation of the replacement power supply.6. Enabling notifications.

7. Return the failed part.

Handling replaceable unitsThis section describes the precautions that you must take and the general proceduresthat you must follow when removing, installing, and storing any replaceable unit. Theprocedures in this section apply to replaceable unit handling during hardware upgradesas well as during general replacement.

Avoiding electrostatic discharge (ESD) damageWhen replacing or installing hardware units, you can inadvertently damage the sensitiveelectronic circuits in the equipment by simply touching them. Electrostatic charge thathas accumulated on your body discharges through the circuits.

Read and understand the following instructions:u Provide enough room to work on the equipment.u Clear the work site of any unnecessary materials or materials that naturally build up

electrostatic charge, such as foam packaging, foam cups, cellophane wrappers, andsimilar items.

u Do not remove replacement or upgrade units from their antistatic packaging until youare ready to install them.

u Gather the ESD kit and all other materials before servicing any units.u After servicing begins, avoid moving away from the work site; otherwise, you might

build up an electrostatic charge.u Use the ESD kit when handling any units.u If an emergency arises and the ESD kit is not available, follow the procedures in

Emergency procedures (without an ESD kit) on page 3u Use the ESD wristband that is supplied with the server.u To use it, attach the clip of the ESD wristband (strap) to any bare (unpainted) metal

on the cabinet or enclosure, and then put the wristband around your wrist with themetal button against your skin.

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Emergency procedures (without an ESD kit)In an emergency when an ESD kit is not available, use the following procedures to reducethe possibility of an electrostatic discharge by ensuring that your body and thesubassembly are at the same electrostatic potential.

CAUTION

These procedures are not a substitute for the use of an ESD kit. Follow them only in theevent of an emergency.

u Before touching any unit, touch a bare (unpainted) metal surface of the enclosure.u Before removing any unit from its antistatic bag, place one hand firmly on a bare

metal surface of the enclosure, and at the same time, pick up the unit while it is stillsealed in the antistatic bag. Once you have done this, do not move around the roomor touch other furnishings, personnel, or surfaces until you have installed the unit

u When you remove a unit from the antistatic bag, avoid touching any electroniccomponents and circuits on it.

u If you must move around the room or touch other surfaces before installing a unit,first place the unit back in the antistatic bag. When you are ready again to install theunit, repeat these procedures.

Removing, installing, or storing CRUsUse the following precautions when removing, handling, or storing CRUs:u Do not remove a faulty CRU from the cabinet until you have the replacement

available.u Handle a CRU only when wearing an ESD wristband (strap).

l Attach the clip of the ESD wristband to the ESD bracket or bare metal on a cabinetenclosure.

l Wrap the ESD wristband around your wrist with the metal button against your skin.

u Handle a CRU gently. A sudden jar, drop, or vibration can permanently damage someCRUs.

u Never use excessive force to remove or install a CRU. Take time to read theinstructions carefully.

CAUTION

For a module that must be installed into a slot in an enclosure, examine the rear

connectors on the module for any damage before attempting its installation.u Store a CRU in the antistatic bag and the specially designed shipping container in

which you received it. Use the antistatic bag and special shipping container when youneed to return the CRU.

CAUTION

A sudden jar, drop, or even a moderate vibration can permanently damage somesensitive FRUs.


Handling replaceable units 3


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CAUTION

Some CRUs have the majority of their weight in the rear of the component. Ensure thatthe back end of the CRU is supported while installing or removing it. Dropping a CRUcould result in personal injury or damage to the equipment.

Preparing the systemTake the following actions to prepare the system for this maintenance activity.

Disabling Connect Home and email notificationsUse the following steps to disable Connect Home and email notification.

Opening a serial connection with CS 0Procedure

1. At the rear of the cabinet, connect the null modem cable from the serial port on themanagement console to the serial port on the primary Control Station ( Figure 1 onpage 4 ).

Figure Control station serial connection

Serial port

2. Open a terminal emulation program (For example, HyperTerminal or PuTTy) and usethe following settings to create a serial connection to CS 0:l Bits per second: 19200l Data bits: 8l Parity: Nonel Stop bits: 1l Flow control: Nonel Emulation: Auto Detectl Telnet terminal ID: ANSI

3. Login as nasadmin .

4. Become the root user:

$ su root

Password:

Disable Connect Home and email notificationUse the open console session to disable Connect Home:

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Procedure

1. As the root user, disable Connect Home:

# /nas/sbin/nas_connecthome -service stop

2. Disable the email notification service:

# /nas/bin/nas_emailuser -modify -enabled no

3. Verify that the email notification service has stopped (is not enabled):

# /nas/bin/nas_emailuser -info

Results

Connect Home and email notifications are now disabled. After completing the procedure,be sure to enable Connect Home and email notifications.

Checking the system for faulted hardwareFollow the steps below to verify the status of the system's hardware components.

Diagnosing faulted storage system hardware componentsUse this procedure to log in to EMC Unisphere and check for any faulted hardwarecomponents in the storage system.

Procedure

1. Start Unisphere for the storage system by entering the primary Control Station IPaddress in a browser window.

2. In the system drop-down list on the menu bar, select the system in which you mayhave a faulted hardware component.

3. Select System >Hardware >Storage Hardware .

4. Check for any faulted storage hardware components.

Running the Verify Storage System wizardUse the Verify Storage System wizard to perform a health check on the storage system.

Procedure

1. Start the Unisphere Service Manager by doing either one of the following:l Click the Unisphere Service Manager icon on your desktopl Select Start > All Programs or Start >Programs , then select EMC >Unisphere

Service Manager >Unisphere Service Manager l

From the System screen in Unisphere, click Launch USM in the right-hand taskbar located under Service Tasks

2. Log in to your system.

3. From the System screen, select Diagnostics > Verify Storage System to run the storagesystem health check wizard.

Replace the faulted storage processor Power Supply moduleUsing the instructions provided in the following tasks, you will locate and replace afaulted power supply module housed in the DPE of VNX system.u

Locate faulted power supply


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u Remove faulted power supplyu Install replacement power supplyu Reconnect power supply cables

Removing a faulted power supplyBefore you begin

1. Locate the power supply with the amber fault light.The two power supplies are visible from the back of your disk processor enclosure. Anamber fault light indicates that the power supply or battery backup unit (BBU) in thepower supply is faulted ( Figure 2 on page 6 ).Figure 2 Power supply fault light (AC supply shown)

CL4859

Power supply fault

2. For a -48 V DC power supply, turn power off by pressing the supply's power buttonand holding it in for two seconds; wait two minutes before continuing.

3. Unplug the power cord from the back of the power supply ( Figure 3 on page 7 for an AC supply or Figure 4 on page 7 for a DC supply).

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Figure 3 Unplugging the power cord from an AC power supply

CL4863

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Figure 4 Unplugging the power cord from a DC power supply

SpringRelease

CL5060

To remove a power supply from an SP assembly:

Procedure

1. Squeeze the black and orange trigger on the back of the power supply ( Figure 5 onpage 8 ).

2. Pull the latch toward you until it is fully extended and the power supply is releasedfrom the SP assembly ( Figure 5 on page 8 ).

3. Slide the power supply from the enclosure and place it aside on a clean, static-freesurface.


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Figure 5 Removing a power supply (AC supply shown)

CL4804

Unpacking a partProcedure

1. Wear ESD gloves or attach an ESD wristband to your wrist and the enclosure in whichyou are installing the part.

2. Unpack the part and place it on a static-free surface.

3. If the part is a replacement for a faulted part, save the packing material to return thefaulted part.

Installing a power supplyTo install a power supply in an SP assembly ( Figure 6 on page 9 ):

Procedure

1. Slide the power supply into the empty slot in the SP assembly until the latch engagesand begins to close.

2. Press the black knob in until the latch catches and the supply is seated and securewithin the SP assembly.

An audible click indicates that the latch is in place.

The latch assembly includes a yellow warning marker. If the marker is visible, thelatch is not fully closed.

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Figure 6 Installing a power supply (AC supply shown)

CL4805

Reconnect the power supply power cableReconnect the power cable to an SP assembly power supply:

Procedure

1. Plug the power cord into the power/cooling module.l On a AC power/cooling module, secure the power cord with the retention bail at

the connector.l On a DC power/cooling module, plug in the power cord until it clicks to secure the

power cord.

Finishing up After completing the maintenance activity, follow the tasks in this section to return thesystem to production ready.

Verifying the operation of a new or replacement part with UnisphereProcedure

1. Start EMC Unisphere for the storage system by entering the IP address in a browser window.

2. In the system drop-down list on the menu bar, select the system in which youinstalled or replaced the part.

3. Select System >Hardware >Storage Hardware .4. Expand the enclosure in which you installed or replaced the part, and navigate to the

part.

5. Verify that the part is in the enclosure and that it is not faulted.

Restoring trespassed LUNsWhen a backend FRU/CRU component fails, the LUNs assigned to that storage processor trespass to the other storage processor. This keeps the data available to the clients. After replacing the failed backend FRU/CRU component you need to restore the LUNs to their original storage processor.


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Procedure

u Using Unisphere, do the following:

a. In Unisphere, use the drop-down list at the top left of the Dashboard to select thesystem.

b. Select Storage .c. On the right side pane under File Storage , select Restore LUN Ownership for File.

d. Trespass failed over LUNs as necessary.u Using the CLI, do the following:

a. Log in to the primary Control Station as nasadmin and change to the root user:

$ su root

b. Determine the storage-system serial number (storage-system ID):

# /nas/bin/nas_storage -list

c. Restore the LUNs to the correct SP:# /nas/bin/nas_storage failback For example:# /nas/bin/nas_storage -failback APM00070300923 id = 1serial_number = APM00070300923 name = APM00070300923acl = 0done

Checking the system for faulted hardwareFollow the steps below to verify the status of the system's hardware components.

Checking system statusFrom the open terminal emulation session, view the system state:

# /nas/bin/nas_checkup

The nas_checkup command runs health checks on the File components as well as thestorage system. If the output of the nas_checkup command indicates any Errors (for example, if a check does not pass), correct the error, following the instructions provided,and then re-run the command before continuing.

Note

It is not required that you correct the Warnings or Information notifications at this time,though it is recommended that these notifications be reviewed.

Running the Verify Storage System wizardUse the Verify Storage System wizard to perform a health check on the storage system.

Procedure

1. Start the Unisphere Service Manager by doing either one of the following:l Click the Unisphere Service Manager icon on your desktopl Select Start > All Programs or Start >Programs , then select EMC >Unisphere

Service Manager >

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l From the System screen in Unisphere, click Launch USM in the right-hand taskbar located under Service Tasks

2. Log in to your system.

3. From the System screen, select Diagnostics > Verify Storage System to run the storagesystem health check wizard.

Enabling ConnectHome and email notificationsResults

Use the procedure in the section that follows to enable ConnectHome and emailnotification.

Re-enable Connect Home and email notificationUse the open console session with the primary CS to re-enable Connect Home and emailnotification:

Procedure

1. As the root user, clear any existing Connect Home files and enable Connect Home:

# /nas/sbin/nas_connecthome -service start -clear

2. From the Connect Home configuration, determine the connections that are enabled:

# /nas/sbin/nas_connecthome -i

3. Verify that Connect Home works with the /nas/sbin/nas_connecthome -test command for each enabled connection.

For example:# /nas/sbin/nas_connecthome -t -email_1

or # /nas/sbin/nas_connecthome -t -email_2

or # /nas/sbin/nas_connecthome -t -https

or # /nas/sbin/nas_connecthome -t -modem_1

4. Verify email notifications is configured:

# /nas/bin/nas_emailuser -infoIf the Recipient Address(es) field is empty, email notifications has not beenconfigured and does not need to be enabled. If you want to configure email

notifications, use the /nas/bin/nas_emailuser command or Unisphere toconfigure it.

If the Recipient Address(es) field is populated, email notifications was enabled. Re-enable email notifications:

a. Enable email notifications:

# /nas/bin/nas_emailuser -modify -enabled yes

b. Verify that email notification works:

# /nas/bin/nas_emailuser -info

c. Test the configuration and verify that the configured Recipient Address(es)

received the test email:


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# /nas/bin/nas_emailuser -test

Returning the failed partShip the failed part to your service provider as described in the instructions that wereincluded with the replacement part.

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Please send your opinion of this document to:[email protected]

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Copyright 2011-2014 EMC Corporation . All rights reserved. Published in USA.

Published May, 2014

EMC believes the information in this publication is accurate as of its publication date. The information is subject to change withoutnotice.

The information in this publication is provided as is. EMC Corporation makes no representations or warranties of any kind withrespect to the information in this publication, and specifically disclaims implied warranties of merchantability or fitness for aparticular purpose. Use, copying, and distribution of any EMC software described in this publication requires an applicable softwarelicense.

EMC, 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 ( https://support.emc.com ).


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