Dell PowerVault 735N (Rackmount NAS Appliance) - Manual (Page 32)

3-14 Installation and Troubleshooting Guide
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Figure 3-1. Hard-Disk Drive Indicators
Table 3-3 lists the hard-disk drive indicator patterns established by the SCSI backplane
firmware. Different patterns are displayed as hard-disk drive events occur in the sys-
tem. For example, in the event of a hard-disk drive failure, the “hard-disk drive failed”
pattern appears. After the hard-disk drive is selected for removal, the “hard-disk drive
being prepared for removal” pattern appears, followed by the “hard-disk drive ready
for insertion or removal” pattern. After the replacement hard-disk drive is installed, the
“hard-disk drive being prepared for operation” pattern appears, followed by the “hard-
disk drive online” pattern
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Table 3-3. SCSI Hard-Disk Drive Indicator Patterns
Condition Indicator Code
Identify hard-disk drive All three hard-disk drive status indicators blink
simultaneously.
Hard-disk drive being pre-
pared for removal The three hard-disk drive status indicators flash
sequentially.
Hard-disk drive ready for
insertion or removal All three hard-disk drive status indicators are off.
Hard-disk drive being pre-
pared for operation The hard-disk drive online indicator is on. The
drive activity light may flash briefly.
Hard-disk drive bay empty All three hard-disk drive status indicators are off.
hard-disk drive activity indicator
hard-disk drive online indicator
hard-disk drive failure indicator
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