Dell PowerEdge 2450 - Manual (Page 31)

support.dell.com Messages and Codes 3-15
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Table 3-3 lists the drive indicator patterns established by the SCSI backplane firmware.
Different patterns are displayed as drive events occur in the system. For example, in
the event of a hard-disk drive failure, the “drive failed” pattern appears. After the drive
is selected for removal, the “drive being prepared for removal” pattern appears, fol-
lowed by the “drive ready for insertion or removal” pattern. After the replacement
drive is installed, the “drive being prepared for operation” pattern appears, followed
by the “drive online” pattern.
NOTE: If you do not have a RAID controller installed, you will see only the "drive
online" and "drive bay empty" indicator patterns.
drive activity indicator
drive online indicator
drive failure indicator
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Identify drive All three drive status indicators blink
simultaneously.
Drive being prepared for
removal The three drive status indicators flash
sequentially.
Drive ready for insertion or
removal All three drive status indicators are off.
Drive being prepared for
operation The drive online indicator is on. The drive activity
light may flash briefly.