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Replacing the Unified Storage System
Controller Module(s)
WARNING
Controller firmware
MUST
be identical for proper functionality.
DO NOT
mix controller modules from different models. Each controller has a unique
ID which is applied to host port names. As the result, you may encounter SAN
problems with identical port names on multiple systems.
When removing a controller from a Single Controller system, ensure that your
applications have been shut down beforehand.
Controller firmware
MUST
match so before you replace a controller in a Dual Controller
system, please check if the firmware of the operational controller matches the replacement
controller sent to you. The replacement controller sent to you will state its firmware version
with a label on the packaging. To find out the firmware version of your operating controller,
use Storage Manager> Information> Enclosure View in the PAC Management Software
(please refer to the PAC Management Software manual for details).
To update the firmware, please refer to the following:
a. PAC Storage PS PAC Management Software User Manual on Upgrading the
Firmware
b. Firmware Manual on System Functions: Upgrading Firmware
1. Prepare a clean, static-free work pad or container to place the controller.
2.
(Replacing Single Controller models or both controllers simultaneously) Shut
the system down.
Stop all I/O access to the system and make sure all cached writes
have been distributed to disk drives using firmware’s Main Menu -> System
Functions > Shutdown controller function. Power off the system and turn off the
power switches and unplug the power cords from PSUs.
3.
Disconnect all cables
that are connected to the controller module.
4.
Loosen the screw
that secures the control module’s ejection levers.
5.
Push the ejection levers downwards (indicated by the
blue arrows
).
The
controller module will automatically ease out of the controller module bay.
6.
Insert the new controller module.
Carefully push the controller until you feel the
contact resistance when the board edge connectors are engaging the backplane.
Push the ejection levers upward (indicated by the
blue arrows
) and fasten the
retention screw on the ejection levers.
2
2
1
1
