EMC2 VNXe3100 User manual

This document describes how to replace a battery backup unit (BBU) in a VNXe3100 or
VNXe3150 disk processor enclosure (DPE).
Before you start
Before you start the procedure, refer to your EMC® VNXe™ online help (Servicing your
system > Adding or replacing faulted hardware components > Replace a faulted hardware
component) for instructions on how to identify failures, order new parts, and handle
hardware components.
Tasks to replace a BBU
◆Task 1: Preparing the storage processor (SP) for service ............................................ 2
◆Task 2: Remove the SP assembly............................................................................... 3
◆Task 3: Remove the SP top cover ............................................................................... 4
◆Task 4: Remove the faulted BBU................................................................................ 5
◆Task 5: Install the replacement BBU .......................................................................... 6
◆Task 6: Replace the SP top cover ............................................................................... 6
◆Task 7: Replace the SP assembly............................................................................... 7
◆Task 8: Reboot the SP ............................................................................................... 7
◆Task 9: Verify the operation of the replacement BBU.................................................. 8
◆Task 10: Return the faulted BBU ................................................................................ 8
EMC® VNXe3100/VNXe3150
Replacing a Battery Backup Unit (BBU)
P/N 300-012-222
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2 EMC VNXe3100/VNXe3150 — Replacing a Battery Backup Unit (BBU)
Tasks to replace a BBU
Task 1: Preparing the storage processor (SP) for service
IMPORTANT
To protect your VNXe system form accidental data loss while you replace a BBU in an SP
assembly, you must prepare the SP for service before you replace the BBU. You prepare an
SP for service by putting it in Service mode.
1. Open Unisphere™ and select Settings, then Service System.
2. Log in with your service password.
3. In the System Components column, select the storage processor (A or B) associated
with faulted component.
4. Under Service Actions, select Enter Service Mode, then Execute service action.
5. In the Service Confirmation dialog box click OK.
Putting an SP into Service mode takes about 10 minutes to complete. The storage
processor fault LED will flash alternating amber and blue while the SP remains in
Service mode and is receiving active power.
6. Wait until the SP fault LED is flashing alternating amber and blue before continuing to
the next task.
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Tasks to replace a BBU
EMC VNXe3100/VNXe3150 — Replacing a Battery Backup Unit (BBU) 3
Task 2: Remove the SP assembly
The battery backup unit (BBU) reside on the SP printed circuit board (motherboard), within
the SP assembly. To replace a BBU, you must remove the SP assembly from the chassis,
and then remove its top cover to gain access to processor board components.
Follow these steps to remove the SP assembly:

DO NOT REMOVE an SP while the “Unsafe to remove SP” LED is on. The light
indicates that you may interrupt a vital system or data-caching process.
If your system has a single storage processor, DO NOT REMOVE the SP if the “Unsafe to
remove” LED for the cache protection module is on.
1. Disconnect the network and all other cables from the back of the assembly that
includes the faulted BBU.
Do not remove any cables from the other storage processor
assembly.
Mark the cables with the port numbers from which you removed them.

The SP assembly comes completely out of the chassis. In addition to holding the
latches, be prepared to support the SP assembly to avoid dropping it.
2. Locate the left and right latches.
3. Pinch the orange tabs and pull the latches to the sides to eject the SP assembly from
the chassis.
4. Pull out the latches until they are fully extended and the SP assembly is released from
the enclosure.
5. Use the latches to slide the assembly about
half-way out of the enclosure.
6. Use both hands to support the assembly and pull it fully out of the enclosure.
7. Place the assembly on a clean, flat static-free work surface.
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4 EMC VNXe3100/VNXe3150 — Replacing a Battery Backup Unit (BBU)
Tasks to replace a BBU
Task 3: Remove the SP top cover
1. Press the blue button on the cover.
2. Push the cover straight back 1/4 inch.
3. Lift the cover up.
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Tasks to replace a BBU
EMC VNXe3100/VNXe3150 — Replacing a Battery Backup Unit (BBU) 5
Task 4: Remove the faulted BBU
1. Press the top of the white tab on the cable connector to release it, then carefully pull
the cable connector from the processor board.
You may need to gently rock the connector to remove it.
2. Push the blue tab to the left to release the BBU, and then carefully pull it from its
carrier on the processor board.
3. Lift the BBU out and away from the canister and place it on a static-free surface.
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6 EMC VNXe3100/VNXe3150 — Replacing a Battery Backup Unit (BBU)
Tasks to replace a BBU
Task 5: Install the replacement BBU
1. Unpack the replacement BBU and save the packing materials to return the faulted
BBU.
2. Slide the replacement BBU into the canister on the SP until the release tab catches.
3. Attach the cable connector to the SP processor board
.
Task 6: Replace the SP top cover
1. Align the cover tabs with the notches in the canister.
2. Slide it forward 1/4 inch until the tab secures the cover.
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Tasks to replace a BBU
EMC VNXe3100/VNXe3150 — Replacing a Battery Backup Unit (BBU) 7
Task 7: Replace the SP assembly
1. Pull out the latches on each side of the SP assembly and make sure they stay in the
open position.
2. Align the SP assembly with the chassis opening and push it straight into the chassis.
The latches begin to close when they contact the chassis edges.
3. Close the right and left latches to fully seat the SP assembly in the chassis.
An audible click indicates that the latches are secure.
4. Reconnect the cables to the back of the SP assembly being sure to connect all cables
to the same ports from which you removed them.
The SP begins powering up immediately after connection to an active AC power
source.
Task 8: Reboot the SP
Once you have installed the replacement memory module and returned the SP assembly
to the chassis, reboot the recently serviced (replacement) SP to ensure that it leaves
Service mode:
1. From Unisphere, select Settings, then Service System.
2. Log in with your service password.
3. In the System Components column, select the storage processor (A or B) with the
replacement BBU.
4. Under Service Actions, select Reboot, then Execute service action.
It may take up to 12 minutes for the system to complete its reboot to return to Normal
mode and restart the servers.
5. Refresh your browser, or follow the on-screen instructions, to bring the software out of
Service mode and restore full-function Unisphere.
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8 EMC VNXe3100/VNXe3150 — Replacing a Battery Backup Unit (BBU)
Tasks to replace a BBU
Task 9: Verify the operation of the replacement BBU
Verify that the replacement BBU is recognized by your system, and operating correctly:
1. In Unisphere™, select System, then System Health.
2. Select the storage processor with the replacement BBU in the Component list or the
graphical view:
• In the Component list, the BBU should be marked with a status OK icon:
• In the graphical view, the BBU should be highlighted green.
If the system health monitor shows the BBU as faulted, contact your service provider.
Task 10: Return the faulted BBU
1. Package the faulted BBU in the shipping box that contained the replacement BBU and
seal the box.
2. From Unisphere, click Support > Need more Help? > Customer replaceable parts >
Return a customer replaceable part to enter the EMC Online Support website. The site
includes detailed instructions on how to return faulted parts.
If your screen does not show the Return a customer replaceable part option, contact
your service provider for instructions on what to do next.
3. Follow the on-screen instructions. The website includes a printable return label and
box pickup information.
4. Attach the shipping label, and contact the appropriate person to pick up the parts.
Copyright © 2011-2012 EMC Corporation. All rights reserved. Published in the USA.
Published August, 2012
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