User`s guide

StorageWorks Replacement Procedures
3.3 Replacing a StorageWorks Shelf
3.3.1 Removing a Shelf
All shelves, except those mounted in a deskside expansion unit, are inserted
into a set of mounting brackets and secured in place with a front locking bracket.
Complete the following procedure to remove a shelf:
1. Turn off power to the shelf and disconnect the power cords.
2. Record the location of each storage device, controller, or cache memory in the
shelf.
3. Record the location of each controller interface cable.
4. Remove devices for access to the SCSI cable connectors.
5. Record the location of each SCSI cable.
6. Remove both the front locking brackets.
WARNING
A shelf with devices in all slots will weigh approximately 15 kgs (33 lbs).
Be sure to fully support the weight of the shelf with both hands at all
times to protect yourself and avoid damaging the devices. Removing all
the SBBs will significantly reduce the shelf weight.
7. Note the shelf orientation and carefully slide it out of the mounting brackets.
3.3.2 Installing a Shelf
Complete the following procedure to install a shelf.
1. Install the SHELF_OK jumpers.
2. Orient the shelf and carefully slide it into the mounting brackets.
3. When it is fully seated, install the front locking brackets.
4. Connect each SCSI cable to the same connector from which it was removed.
5. Install each SBB, controller, or cache memory in the same slot from which it
was removed.
6. Connect each controller interface cable to the same connector from which it
was removed.
7. Insert the power SBB and connect the power cord.
8. Apply power to the shelf and ensure that the shelf, the power supplies, and
all devices are functioning properly.
9. If you replaced a shelf blower, ensure that both blowers are functioning.
3–6 StorageWorks Replacement Procedures