Nx4 Sps Replace

8/10/2019 Nx4 Sps Replace

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This document describes how to replace a standby power supply (SPS) in the storage system inan NX4 system.

Note: The storage system in an NX4 system is an AX4-5F8.

Summary of tasks for replacing an SPS................................................................................................................2Handling field replaceable units (FRUs)..............................................................................................................3Disabling CallHome or ConnectHome and Email notifications......................................................................5Shutting down power and removing the cables.................................................................................................7Unlocking and removing the SPS front bezel.....................................................................................................8Removing the front plate........................................................................................................................................9Removing a standby power supply....................................................................................................................10Installing a standby power supply.....................................................................................................................11Reconnecting Cables and Powering up the SPS................................................................................................12Installing the front plate.......................................................................................................................................13Installing and locking the SPS front bezel.........................................................................................................14Verifying the operation of a new or replacement part.....................................................................................15Restoring trespassed virtual disks or LUNs using the CLI ............................................................................17Checking system status........................................................................................................................................18Enabling CallHome or ConnectHome and Email notifications......................................................................19Returning the failed part......................................................................................................................................23

EMC AX4-5F8 Architecture for NX4 Series

Replacing a Standby Power Supply


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Summary of tasks for replacing an SPS

To replace an SPS you must complete the tasks below in the order in which they appear.This document provides instructions for completing each task.

1. Disable CallHome or ConnectHome.

2. Shut down the failed SPS and remove all cables.

3. Unlock and remove the bezel.

4. Remove the front plate.

5. Remove the failed SPS.

6. Install the replacement SPS.

7. Reinstall the front plate.

8. Reconnect cables and power up the replacement SPS.9. Reinstall the front plate.

10. Reinstall and lock the bezel.

11. Verify the operation of the replacement SPS.

12. Restore any trespassed virtual disks or LUNs.

13. Check system status.

14. Enable CallHome or ConnectHome.

2 Replacing a Standby Power Supply

Summary of tasks for replacing an SPS


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Handling field replaceable units (FRUs)

This section describes the precautions that you must take and the general procedures thatyou must follow when removing, installing, and storing any field replaceable unit (FRU).

Power issues and FRUs

Your storage system is designed to be powered on continuously. Most components are hotswappable; that is, you can replace or install these components while the storage system isrunning. Front bezels should always be attached and each compartment should contain aFRU or filler panel to ensure EMI compliance and proper air flow over the FRUs.

You should not remove a faulty FRU until you have a replacement available.

When you replace or install FRUs, you can inadvertently damage the sensitive electroniccircuits in the equipment by simply touching them. Electrostatic charge (ESD) that hasaccumulated on your body discharges through the circuits. If the air in the work area is verydry, running a humidifier in thework area will help decrease therisk of ESDdamage. Followthe procedures below to prevent damage to the equipment.

Read and understand the following instructions:

Provide enough room to work on the equipment. Clear the work site of any unnecessarymaterialsor materials that naturally build up electrostaticcharge,such as foam packaging,foam cups, cellophane wrappers, and similar items.

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

Before you service a storage system, gather together the ESD kit and all other materialsyou will need. Once servicing begins, avoid moving away from the work site; otherwise,you may build up an electrostatic charge.

An ESD wristband is supplied with your storage system. To use it, attach the clip of theESD wristband (strap) to any bare (unpainted) metal on the storage system; then put thewristband around your wrist with the metal button against your skin.

Use the ESD kit when handling any FRU. If an emergency arises and the ESD kit is notavailable, follow the procedures in the Emergency procedures (without an ESD kit) onpage 3 .

Emergency procedures (without an ESD kit)In an emergency when an ESD kit is not available, use the procedures below to reduce thepossibility of an electrostatic discharge by ensuring that your body and the subassemblyare at the same electrostatic potential. These procedures are not a substitute for the use ofan ESD kit. Follow them only in the event of an emergency.

Handling field replaceable units (FRUs) 3



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Before touching any FRU, touch a bare (unpainted)metalsurface of thecabinet or storagesystem.

Before removing any FRU from its antistatic bag, place one hand firmly on a bare metalsurface of the storage system, and at the sametime, pick up the FRU while it is still sealedin the antistatic bac. Once you have done this do not move around the room or touchother furnishings, personnel, or surfaces until you have installed the FRU.

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

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




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Disabling CallHome or ConnectHome and Email notifications

Open a HyperTerminal session with theCelerrasystem andthen use procedure in thesectionthat follows for your EMCNAS version to disable CallHome or ConnectHome and Emailnotification.

Opening a HyperTerminal session with the system

1. At the rear of the cabinet, connect the nullmodem cable (P/N038-003-458) fromthe serialport on the service laptop to the primary Control Station ( Figure 1 on page 5 ).

Figure 1. Control station serial connection

2. Open the HyperTerminal session using the following settings:

19200Bits per second:

8Data bits:

NoneParity:

1Stop bits:NoneFlow control:

Auto DetectEmulation:

ANSITelnet terminal ID:

Note: If you cannot connect to the HyperTerminal session, reboot the Control Station, log in, andrepeat this step.

3. Login as nasadmin :

login :nasadmin

4. Become the root user:

$ su root

Password:

Disabling CallHome or ConnectHome and Email notifications 5



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For EMCNAS 5.6 or later

Use a HyperTerminal session to disable ConnectHome:

1. From the root directory, disable CallHome:

/nas/sbin/nas_connecthome stop

2. Disable the Email notification service:

/nas/bin/nas_emailuser -modify -enabled

Sample output:

OK

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

/nas/bin/nas_emailuser-info

Sample output:

Service Enabled = NoRecipient Address(es) = [email protected] Copy Address(es) =Email Server = emcmail.lss.emc.comSubject Prefix = Celerra Notification -NDU through NST Sender Address =

ConnectHome and Email notifications are now disabled. You are now ready to replace thepart. After completing thepart replacementprocedure, be sure to enableConnectHome andEmail notifications.




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Shutting down power and removing the cables

1. Shut down power on the SPS that you are replacing by pressing the left side of the SPSpower switch ( Figure 2 on page 7 ).

Figure 2. Off position for the SPS power switch (SPS A shown)

2. Disconnect the SPS cables:

Note: Label the cables for reinstallation later.

a. Unplug the SPS power cord from the site power source and then from the SPS.

b. From the SPS, unplug the sense cable and the power cord connecting the SPS to theSP directly above it.

Shutting down power and removing the cables 7

Shutting down power and removing the cables


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Removing the front plate

The front plate covers the front of the SPS tray. You must remove it to replace either SPS.

1. Remove the four or six screws on the front plate and remove the front plate ( Figure 4 onpage 9 ).

Figure 4. Removing the front plate

2. Save the front plate and screws for reinstallation later.

Removing the front plate 9

Removing the front plate


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Removing a standby power supply

1. From the rear, remove the four screws that secure the SPS.2. From the front of the cabinet, slide the SPS off the tray ( Figure 5 on page 10 ).

Figure 5. Removing an SPS


Removing a standby power supply


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Installing a standby power supply

1. Remove the SPS from its packaging.2. From the front, slide the SPS onto the tray and into position ( Figure 6 on page 11 ).

3. From the rear, secure the SPS with four screws that you saved either from removing the back plate (if you are adding a second SPS) or from removing from a failed SPS (if youare replacing an SPS).

Figure 6. Installing a standby power supply

Ins talling a s tandby power supply 11

Installing a standby power supply


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Reconnecting Cables and Powering up the SPS

1. Reconnect the sense cable from the SPS serial port (marked with a battery symbol) onmanagement module to the SPS (detailed in reconnecting the sense cable and powercords ).

2. Reconnect the power cables to the replacement SPS as shown in and described in thesteps that follow the figure.

a. Connect the power cord to the power distribution unit (PDU) in the cabinet or thesite power circuit and to the SPS.

3. Power up the SPS by pressing the right side of the SPS power switch ( Figure 7 on page12).

Figure 7. On position for the SPS switch (SPS A shown)


Reconnecting Cables and Powering up the SPS
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Installing the front plate

1. Reposition thefront plateandsecure it with thescrews that you saved when you removedthe plate ( Figure 8 on page 13 ).

2. If you are adding a second SPS, secure that SPS to the front plate with two additionalscrews that came with the SPS upgrade kit ( Figure 8 on page 13 ).

Figure 8. Installing the front plate

Ins talling the front plate 13

Installing the front plate


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Installing and locking the SPS front bezel

1. While holding the front SPS bezel by its edges, attach it to the latch brackets on the frontof the enclosure ( Figure 9 on page 14 ).

2. Push the bezel in until you feel it latch into place, and pull back on the bezel slightly toensure it is secured.

3. Lock the bezel by inserting and then turning the key clockwise ( Figure 9 on page 14 ).

Figure 9. Installing and locking the SPS bezel


Installing and locking the SPS front bezel


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Verifying the operation of a new or replacement part

Use Navisphere Express or Navisphere Manager to verify the operation of a new orreplacement part.

If the storage system is running Navisphere Express, use Navisphere Express to verify theoperation of a new or replacement part.

If the storage system is running Navisphere Manager, use Navisphere Manager to verifythe operation of a new or replacement part.

Note: All AX4-5 series storage systems ship with Navisphere Express installed. To use NavisphereManager, you need to upgrade your storage system to Navisphere Manager.

Verify the operation of a new or replacement part using NavisphereExpress

1. In a browser on a network-connected host, start Navisphere Express for the storagesystem by entering the IP address of an SP in the storage system.

2. In the Navisphere Express navigation pane, under View , click Components .

3. Scan the list of components to verify that all components are recognized and workingproperly.

If fault lights on storage system are still lit, go to the Celerra Tools page on thehttp://Powerlink.EMC.com website for more information.

Verifying the operation of a new or replacement part using NavisphereManager

1. Start Navisphere Manager for thestorage systemby entering theIP address in a browserwindow.

2. In the Navisphere Manager Storage tree, locate the icon for the storage system in which

you installed or replaced thepart, expand thestorage-systemicon, and select the Physicalicon.

3. Expand the enclosure in which you installed or replaced the part, and navigate to thepart.

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

Verifying the operation of a new or replacement part 15

Verifying the operation of a new or replacement part
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Restoring trespassed virtual disks or LUNs using the CLI

When a backend FRU/CRU component fails, the virtual disks or LUNs assigned to thatstorage processor trespass to the other storage processor. This keeps the data available tothe clients. After replacing the failed backend FRU/CRU component you need to restore thevirtual disks or LUNs to their original storage processor.

1. Using the CLI, log in to the primary Control Station as nasadmin and change to the rootuser:

su root

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

nas_storage -list

3. Restore the virtual disks or LUNs to the correct SP:

nas_storage failback storage-system-id

For example:

# nas_storage -failback APM00070300923i d = 1

serial_number = APM00070300923name = APM00070300923

acl = 0done

This restores the virtual disks or LUNs to the correct SP. After the restore, both SPs havetheir status listed as OK.

Restoring trespassed virtual disks or LUNs using the CLI 17

Restoring trespassed virtual disks or LUNs using the CLI


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Enabling CallHome or ConnectHome and Email notifications

Usetheprocedure in thesection that follows foryour EMCNAS version to enableCallHomeor ConnectHome and Email notification.

For EMCNAS 5.6 or later

Use a HyperTerminal session to enable ConnectHome and Email notification:

1. From the root directory, clear any existing Callhome files and enable ConnectHome:

/nas/sbin/nas_connecthome -service start -clear

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

/nas/sbin/nas_connecthome -i

Sample output:

Enabling CallHome or ConnectHome and Email notifications 19



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ConnectHome Configuration:Encryption Enabled = yesDial In:Enabled = yesModem phone number =

Site ID =Serial number = HK192201084Email:Priority = 1Sender Address = [email protected] Address(es) = [email protected] = CallHome AlertPrimary:Email Server = sun1.hosts.pvt.dnsSecondary:Email Server =FTP:Priority = DisabledPrimary:FTP Server =FTP Port = 21

FTP User Name = onalertFTP Password = **********FTP Remote Folder = incomingFTP Transfer Mode = activeSecondary:FTP Server =FTP Port = 21FTP User Name = onalertFTP Password = **********FTP Remote Folder = incomingFTP Transfer Mode = activeModem:Priority = DisabledPrimary:Phone Number = 918005270941BT Tymnet = no

Secondary:Phone Number = 918006262452BT Tymnet = no

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

For example:

/nas/sbin/nas_connecthome -t -email_1

Sample output:

-----------------------------------------------------ConnectEMC 2.0.27-bl18 Wed Aug 22 10:24:32 EDT 2007RSC API Version: 2.0.27-bl18Copyright (C) EMC Corporation 2003-2008, all rightsreserved.-----------------------------------------------------Reading configuration file: ConnectEMC.ini.Run Service begin...Test succeeded for primary email.




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Sample returns for disabled connections:

/nas/sbin/nas_connecthome -t -email_2

Error 14504231218: Secondary Email is not currently enabled.

/nas/sbin/nas_connecthome -t -modem_1

Error 14504231218: Primary Modem is not currently enabled.

/nas/sbin/nas_connecthome -t -modem_2

Error 14504231218: Secondary Modem is not currently enabled.

4. Verify email notifications is configured:

/nas/bin/nas_emailuser -info

Sample output:

/nas/bin/nas_emailuser info

Service Enabled = NoRecipient Address(es) = [email protected] copy Address(es) =Email Server = 1.2.3.4Subject Prefix = Celerra NotificationSender Address =

If the Recipient Address (es) field is empty, email notifications has not been configuredand does not need to be enabled. If you want to configure email notifications, use the/nas/bin/nas_emailuser command or Celerra Manager to configure it.

If the Recipient Address (es) field is populated, email notifications wasenabled.Re-enableemail notifications:

a. Enable email notifications:

/nas/bin/nas_emailuser -modify -enabled yes

Sample output:

OK

b. Verify that email notification works:

/nas/bin/nas_emailuser -info

Sample output:

Service Enabled = YesRecipient Address(es) = [email protected] Copy Address(es) =Email Server = 1.2.3.4Subject Prefix = Celerra NotificationSender Address =

Enabling CallHome or ConnectHome and Email notifications 21



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c. Test the configuration and verify that the configured Recipient Address(es) receivedthe test email:

/nas/bin/nas_emailuser -test

Sample output:

OK




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Returning the failed part

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

Returning the failed part 23

Returning the failed part


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Copyright 2009 - 2010 EMC Corporation. All rights reserved.

Published September 2010

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