Replacing cache memory 9–3
Hitachi Unified Storage Hardware Service Guide
5. Slide the controller forward and then remove it.
6. Place the old controller on a flat surface with its module-revision label
facing down. Loosen the two blue screws at the rear of the controller and
then slide the cover in the direction shown by the arrow (
⎯→).
7. Before removing the cache memory, record the slots where it is
installed, its capacity, and its model name.
8. Push the slot levers securing the cache memory, then hold both ends of
the cache memory and gently pull up at both ends to remove the cache
memory.
9. Using both hands, hold the new cache memory and insert the modules
into the same slots where the old cache memory was installed, according
to the slot information you recorded earlier. Align the projection inside
the slot with the cut on the cache memory, and then gently push the
cache memory into the slot until the slot levers close completely.
10.Slide and install the cover of the controller, then secure using the two
blue screws at the rear of the controller.
11.If you removed the SAS (ENC) cable earlier, connect it to the new
controller.
12.Wait at least 30 seconds.
13.With its module-revision label facing up, insert and push the controller
all the way into the slot, with its right and left levers opened completely.
14.Push the levers at the same time in the direction shown by the arrows
(
←⎯) at the same time. Otherwise, the controller might not recover and
you will have to repeat the replacement procedure
15.Close the levers and slide the right and left blue latches to secure the
controller.
16.Replace all of the cables you removed from the controller.
NOTE: If the cable cannot be removed easily, do not pull it by force.
Otherwise, you can damage the cable. When removing Fibre Channel
Interface cables, pull out the cables completely from the host connectors.
If the Fibre Channel Interface cables are inserted halfway into the host
connectors, the controller continues to detect Fibre Channel failures and
I/O processing can deteriorate.
NOTE: If you do not wait at least 30 seconds, the controller might not
recover normally. If you fail to wait at least 30 seconds and the controller
does not recover, perform this replacement procedure again.
When installing the controller, do not catch it on a SAS (ENC) cable and
ignore the red ALM LED if it is ON; the LED will go OFF after the controller
recovers.
NOTE: When connecting the Fibre Channel interface cables, insert the
cables until they are secure with the host connectors. If the cables are
inserted half into the host connectors, the controller continues to detect the
Fibre Channel failures and I/O processing may deteriorate.
To Next Page
Loading...