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About Your System 17
Hard-Drive Indicator Codes
If an optional SAS backplane is installed in the system, two indicators on each of the hard-drive carriers
provide information on the status of the hard drives. See Figure 1-4 and Table 1-5. The SAS backplane
firmware controls the drive power-on/fault indicator.
Figure 1-4. Hard-Drive Indicators
1 drive status indicator 2 drive busy indicator
2
1