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Chapter 5: Maintaining Disk Modules
The fault indicator on a disk module does not necessarily mean that the
drive itself has failed. Failure of a SCSI bus, for example, lights the fault
indicator on each disk module on that bus.
To verify a suspected disk-module failure, follow these steps:
1.
Look for the module with its amber fault light on. Figure 5-1 shows the
fault indicator light and other lights on a disk module.
Figure 5-1
Disk Module Status Lights
2.
Determine the failed module’s ID; use Figure 5-2.
Caution:
Use only CHALLENGE RAID disk modules to replace failed disk
modules. Order them from the Silicon Graphics hotline: 1-800-800-4SGI
(1-800-800-4744). CHALLENGE RAID disk modules contain proprietary
firmware that the storage system requires for correct functioning. Using any
other disks, including those from other Silicon Graphics systems, can cause
failure of the storage system. If you replace a disk module, you must update
the firmware as explained in “Updating the Disk Module Firmware,” later
in this chapter.
Deskside
Fault light
(amber)
Ready light
(green)
Busy light
(green)
Fault light
(amber)
Ready light
(green)
Busy light
(green)
Rack
