User`s guide

Chapter 8. Troubleshooting and Service Information
EK–SWRA2-IG. C01 8–5
Table 8–3 Disk Drive SBB Status LEDs
Activity
Status
Fault
Status
Indicates
On Off Normal: Device is operating properly.
Off Off Normal: Device is inactive and operating properly.
On On Error: Device is hung up. Replace the device.
Off On Error: Device is inactive and spun down. Replace
the device.
On/Off Flashing Error: Device is active and spinning down due to the
fault. (When you turn the system on, brief flashing is
normal.)
8.2 Troubleshooting Your Subsystem
This section contains troubleshooting information to correct problems that are
easy to fix. It also directs you to the appropriate documentation for further trou-
bleshooting, if needed.
8.2.1 Before You Begin Troubleshooting
CAUTION
Always turn off the power to the host computer
before you turn off the power to the storage ped-
estal(s).
Before starting to troubleshooting, perform the following preliminary checks:.
Using storage devices other than the StorageWorks pedestal or shelves:
1. Turn off the host computer.
2. Turn off the power to the pedestal, shelves, and drives.
3. Check that the SCSI cables are connected correctly to the storage pedestal,
shelves, and drives. Check for proper SCSI cable termination on both ends
of the bus.
4. Turn the system on and see if the problem is resolved.