To check the status of and identify a problem with the storage subsystem, complete
the following steps. If a problem has occurred, use the DS3000 Storage Manager
software and the LEDs on the storage subsystem to help locate a failed component.
1. Open the Subsystem Management window.
2. Click the
Summary
tab, and view the status of the storage subsystem.
3. Does any storage subsystem have a Needs Attention status?
v
Yes:
Go to step 4.
v
No:
All components are Optimal. Go to step 5.
4. Click
Recovery Guru
on the toolbar. Perform the procedure in the Recovery
Guru to correct the problem. The Recovery Guru might direct you to replace the
failed component. If so, go to step 5.
Attention:
If the fault requires you to power-off an attached storage expansion
enclosure, you might have to cycle the power on the DS3300 storage
subsystem and all remaining storage expansion enclosures that are connected
to the storage subsystem. Contact your IBM technical-support representative
before you power-off any attached storage expansion enclosures.
5. Check the LEDs on the front and the rear of the storage expansion enclosure. A
green LED indicates a normal status; an amber LED indicates a hardware fault.
6. Is an amber LED lit?
v
Yes:
Locate and troubleshoot the failed components. See “Checking the
LEDs.”
v
No:
You are finished with this procedure. If you are still experiencing a
problem with the storage subsystem, create, save, and print a storage
subsystem profile, and contact your IBM technical-support representative for
assistance. When the recovery procedure is completed, select
Recheck
in
the Recovery Guru to run the Recovery Guru again to make sure that the
problem is corrected.
Checking the LEDs
The LEDs indicate the status of the storage subsystem and components. Green
LEDs indicate a normal operating status; amber LEDs (needs attention) indicate a
possible failure; a blue LED on a component indicates that it is safe to remove that
component.
The DS3300 also has a blue system locator LED that is lit when the menu function
is selected in the Subsystem Management window, causing the Locate command to
be sent to the DS3300.
Check all the LEDs on the front and rear of the storage subsystem when you turn
on the power. During power-on, the LEDs flash intermittently as the storage
subsystem and components complete the power-on process. In addition to checking
for faults, you can use the LEDs on the front of the storage subsystem to determine
whether the drives are responding to I/O transmissions from the host.
Chapter 4. Operating the storage subsystem
49
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