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1. Open the Subsystem Management Window.
2. Select the component button for each storage expansion enclosure in this
3. Does any component have a Needs Attention status?
4. Select the Recovery Guru toolbar button. Perform the procedure in the
5. Mute the alarm, if needed.
6. Check the indicator LEDs on the front and the back of the storage expansion
7. Is an amber LED on?
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 it 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 on, the indicator
LEDs flash 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 power supply and fan unit LEDs
This section describes the primary power supply and fan unit LEDs on the storage
expansion enclosure.
storage subsystem, and view the status of each of the components.
The status for each component is either Optimal or Needs Attention.
v Yes - Go to step 4.
v No - All components are Optimal. Go to step 6.
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 DS3950 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.
enclosure.
A green LED denotes a normal status; an amber LED denotes a hardware fault.
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.
Chapter 4. Operating the EXP395
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