IBM Storwize V7000 Unified Series Problem Determination Manual page 76

Removing a file module and disconnecting power
You can remove an IBM Storwize V7000 Unified file module and disconnect it
from its power line cords before performing a maintenance action that requires the
file module to have no power.
To identify and perform a service action on any file module that requires you to
turn off the power before performing the service action, perform the following
procedure.
1. Access and log in to the Storwize V7000 Unified system from the
2. Use the stopcluster command to stop the cluster. Alternatively, you can use
3. After the file module shuts down and the power indicator light on the front of
4. Remove the file module from the rack if necessary, or locate and use the service
5. Locate and perform the correct removal and replacement procedure, as
6. After replacing the failing part and replacing the file module cover, replace the
7. Push the file module back into the rack.
8. After the power indicator LED on the front of the file module begins to flash
You can now perform maintenance on another file module that requires it. After
completing all maintenance, perform the system checkout procedure and return the
system to the customer.
Removing a file module without disconnecting power
You can work on an IBM Storwize V7000 Unified file module to perform a
maintenance action that does not require you to remove its power cords.
Perform the following procedure to remove and replace a hot swappable field
replaceable unit (FRU) in a file module when you do not have to remove the file
module from the rack to work on it.
1. Access and log in to the Storwize V7000 Unified system from the
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Storwize V7000 Unified: Problem Determination Guide Version
command-line interface.
the initnode command to remove the file module from the system and shut
down the file module.
If you are shutting down the mgmt001st001 file module, for example, issue the
following command:
stopcluster -n mgmt001st001
the file module is flashing slowly, pull the file module out on its rails.
Note: Label and disconnect both power cords and all external cables from the
file module.
ladder, if necessary, to perform the maintenance action on the file module when
it is fully extended from the rack.
described in "Removing and replacing parts" on page 81.
Attention: You can replace only one of the disk drives in the file module. If
you must replace both disk drives, contact your next level of support.
file module in the rack, if necessary, and reconnect the power cords.
After reconnecting the power cords, the power indicator LED on the front of
the file module begins to flash quickly.
slowly, press the power switch that surrounds the indicator light to turn on the
file module.
As the file module reboots, the Storwize V7000 Unified system reintegrates it
back into the cluster.
command-line interface.