Hitachi CBL, Hardware Service Manual

Page: 172 / 292

8–8
Adding and replacing controllers
Hitachi Unified Storage Hardware Service Guide
4. Hold both ends of the cache memory and gently pull up at both ends to
remove the cache memory from the slots. Place the cache memory in a
temporary location where anti-static measures are observed.
5. Loosen the two blue screws that secure the Host I/O Board, then hold
the screws as you pull out and remove the Host I/O Board. Place the old
controller in a location where anti-static measures are observed.
Installing the cache memory and Host I/O Board on the new controller
After removing the cache memory and Host I/O Board from the old
controller, install them on the replacement controller.
1. Orient the new controller so its module-revision label faces down. Then
loosen the two blue screws at the rear of the controller and slide the
cover in the direction shown by the arrow (
⎯→
) and remove it
2. Using both hands, hold the cache memory you removed from the old
controller and insert it into the new controller. Insert the modules into
the same slots where they were installed in the controller you removed.
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.
3. Insert the Host I/O Board you removed into the slot of the new controller
and gently push. Tighten the two blue screws to secure the Host I/O
Board.
4. Slide the cover to attach it and then tighten the two blue screws at the
rear of the controller to secure.
Installing the new controller
Confirm that at least 30 seconds have elapsed since you removed the old
controller. Then install the new controller into the storage system;
otherwise, the new controller might not recover. Ignore the red ALM LED if
it is ON after you insert the new controller; it will go OFF after the controller
recovers.
1. If the rear of the new controller has a connector cover installed, remove
the connector cover.
2. With its module-revision label facing up, insert and push the new
controller all the way into the slot, with its right and left levers opened
completely.
3. 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.
4. Close the levers, and tighten the right and left blue screws to secure the
controller.
5. Connect all the cables you removed, including the SAS (ENC) cable if you
removed it from the Drive Box.
NOTE: When inserting the controller, do not catch the controller on a SAS
(ENC) cable.