Symantec NetBackup 5220, Hardware Troubleshooting Manual

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Possible Causes
The disk module is faulty
Fault Diagnosis
A flow chart to help diagnose disk status faults is planned for a future release of this
document.
Procedure
The disk is faulty
1.
Remove the disk module that shows a red or off (not lit) LED.
2.
Remove the disk from the carrier.
3.
Replace the disk with a new disk, inserting it into the carrier.
4.
Replace the disk/carrier module into the empty slot.
5.
Wait for three minutes after inserting a new disk module and then check
the disk status LED.
 If the LED is normal, the fault is removed.
 If the fault persists, check other components for further analyses.
All disks cannot be scanned
The NetBackup 5220 contains eight disk bays. Each bay can hold one disk
module, which includes a disk carrier and a disk drive.
This section describes how to troubleshoot the NetBackup 5220 when every
disk module cannot be scanned by the MSM monitoring interface.