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Precautions when replacing the Drive I/O Module
Observe the following guidelines when replacing a Drive I/O Module.
•
Complete the Drive I/O Module replacement within 10 minutes.
Otherwise, an abnormal rise in temperature can power off the storage
system.
•
Before replacing the Drive I/O Module, block the controller associated
with the faulty Drive I/O Module.
•
For storage systems that have the Power Saving/Power Saving Plus
option, removing and inserting a controller during drive spin-up might
prevent the controller from recovering fully. If this occurs, wait for all
the drives to spin up, and then remove the controller from the storage
system, wait at least 30 seconds, and reinsert it.
•
System parameters are loaded onto the replacement controller
automatically from the internal drive, obviating the need to configure
settings manually.
Replacing the Drive I/O Module on a CBL Controller Box
To replace the Drive I/O Module on a CBL Controller Box:
1. Be sure the red STATUS LED on the Drive I/O Module is ON. If it is not
ON, visit the HDS Support Portal at portal.hds.com.
2. Remove the SAS (ENC) cable connected to the Drive I/O Module to be
replaced.
NOTE: If the cable cannot be removed easily, do not pull it by force.
Otherwise, you can damage the cable.
3. Loosen one blue screw securing the Drive I/O Module, then open the
lever toward you. When the lever is open, the Drive I/O Module can be
removed.
4. Pull out and remove the Drive I/O Module. Place the module in a location
where anti-static measures are observed.
5. Wait at least 30 seconds, and then install the new Drive I/O Module. Do
not push the module in completely.
NOTE: If you insert the Drive I/O Module without waiting at least 30
seconds, the controller may not recover normally. If this occurs, remove the
controller from the storage system, wait at least 30 seconds, and then re-
insert the controller into the storage system.
6. Connect the SAS (ENC) cable you removed to the new Drive I/O Module.
7. Close the lever, and then push the Drive I/O Module all the way into the
slot.
8. Tighten the Drive I/O Module using the blue screw you loosened earlier.
12–2
Replacing the Drive I/O Module
Hitachi Unified Storage Hardware Service Guide
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