Dell PowerVault ME5 Series - Page 61

The figure in the following sections show controller module replacement for the top slot (A) of the enclosure. To replace a
controller module or IOM in the bottom slot (B), rotate the module 180º so that it properly aligns with its connectors on the
back of the midplane.
Replacing a controller module in a dual-controller module enclosure
When two controller modules are installed in an enclosure, the controller modules must be the same model type.
Removing a controller module from an operational enclosure changes the air flow within the enclosure. Leave the controller
modules in the enclosure until you are ready to install a replacement controller module.
CAUTION: When a controller module is removed from a 2U enclosure, it must be replaced within five minutes to
prevent the enclosure from overheating. When a controller module is removed from a 5U enclosure, it must be
replaced within seven minutes to prevent the enclosure from overheating.
Follow these guidelines when replacing one controller module in an operational enclosure:
1. Record the controller module settings in PowerVault Manager before replacing the controller modules.
2. Remove the controller module from the enclosure.
3. Install the replacement controller module in the enclosure.
4. Wait 30 minutes, and then use the PowerVault Manager or CLI to check the system status and event logs to verify that the
system is stable.
NOTE: If the Partner Firmware Update (PFU) feature is not enabled, update the firmware on the replacement controller
module.
Follow these guidelines when replacing both controller modules in an operational enclosure:
1. Record the controller module settings in PowerVault Manager before replacing the controller modules.
2. Remove one controller module from the enclosure.
3. Install the replacement controller module in the enclosure.
4. Wait 30 minutes, and then use the PowerVault Manager or CLI to check the system status and event logs to verify that the
system is stable.
NOTE:
If the Partner Firmware Update (PFU) feature is not enabled, update the firmware on the replacement
controller module. For more information updating the firmware, see the Dell PowerVault ME5 Series Storage System
Administrator's Guide.
5. Remove the second controller module from the enclosure.
6. Install the replacement controller module in the enclosure.
7. Wait 30 minutes, and then use the PowerVault Manager or CLI to check the system status and event logs to verify that the
system is stable.
NOTE:
If the Partner Firmware Update (PFU) feature is not enabled, update the firmware on the replacement
controller module. For more information updating the firmware, see the Dell PowerVault ME5 Series Storage System
Administrator's Guide.
Removing a controller module from a dual-controller module enclosure
Perform the following steps to remove a controller module from a dual-controller module enclosure:
Before you begin any procedure, see ESD precautions.
NOTE:
● You may hot-swap a single controller module in an operational enclosure, provided you first shut down the controller
module using the PowerVault Manager or the CLI.
● Do not remove a faulty controller module unless its replacement is on-hand. All controller modules must be in place when
the system is in operation.
1. Verify that you have successfully shut down the controller module using the PowerVault Manager or the CLI.
2. Locate the enclosure with a Unit identification (UID) LED that is lit.
3. Within the enclosure, locate the controller module to remove and make sure that the OK to remove LED is lit.
4. Disconnect any cables connected to the controller module.
Label each cable to facilitate re-connection to the replacement controller module.
Module removal and replacement
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