Use the following procedure to check the status of and identify a problem with the
storage expansion enclosure.
1. Open the Subsystem Management Window.
2. Select the component button for each storage expansion enclosure in this
storage subsystem, and view the status of each of the components.
The status for each component is either Optimal or Needs Attention.
3. Does any component have a Needs Attention status?
v
Yes
- Go to step 4.
v
No
- All components are Optimal. Go to step 6.
4. Select the Recovery Guru toolbar button. 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 need to cycle the power on the DS4000 storage
subsystem and all remaining storage expansion enclosures in the storage
subsystem. Contact IBM Customer and Technical Support before powering off
any attached storage expansion enclosures.
5. Mute the alarm, if needed.
6. Check the indicator LEDs on the front and the back of the storage expansion
enclosure.
A green LED denotes a normal status; an amber LED denotes a hardware fault.
7. Is an amber LED on?
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 this storage subsystem, create, save, and print a storage
subsystem profile. This information might be helpful when troubleshooting.
Contact IBM Customer and Technical Support for assistance. When the
recovery procedure is completed, select
Recheck
in the Recovery Guru to
rerun the Recovery Guru and to ensure that the problem has been corrected.
Checking
the
LEDs
The LEDs display the status of the storage expansion enclosure and components.
Green LEDs indicate a normal operating status; amber LEDs (Needs Attention)
indicate a possible failure; a blue LED indicates that is safe to remove a
component. The blue LED also indicates that the storage expansion enclosure is
being identified or located.
It is important to check all the LEDs on the front and back of the storage expansion
enclosure when you turn on the power. During power up, the indicator LEDs blink
intermittently as the storage expansion enclosure and components complete the
power-up process. In addition to checking for faults, you can use the LEDs on the
front of the storage expansion enclosures to determine if the drives are responding
to I/O transmissions from the host.
The
ac
power
supply
and
fan
unit
LEDs
This section describes the primary ac power supply and fan unit LEDs on the
storage expansion enclosure.
Chapter 4. Operating the EXP810
73
Summary of Contents for DS4000 EXP810
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