NEC Express 5800/120Lg, Service Manual

Page: 158 / 204

5-26 Problem Solving
Hard Disk Drive Lamp
The disk lamp on the 3.5-inch hard disk drive bay has different meanings depending on
the display status. See Figure 5-4.
Figure 5-4. Hard Disk Drive Lamp Location
!
Lighting green
Indicates that the power is supplied to the hard disk.
!
Blinking green
Indicates that the hard disk is accessed.
!
Lighting amber
Indicates that the installed hard disk is defected in the disk array configuration.
NOTE:
While hard disks are in the disk array configuration (RAID1 or RAID5), a single
failed hard disk does not affect the operation of the server. However, it is recommended to
replace the failed hard disk and auto-rebuild (reconfigure) the hard disks as soon as
possible. (You can hot-swap such a failed hard disk.)
!
Alternate lighting green or amber
Indicates that the hard disk is being rebuilt (this status is not a failure). If the defected
hard disk is replaced with a new one in the disk array configuration, the data is
automatically rebuilt (auto rebuild function). During the rebuild operation, the lamp is
lit green or amber alternatively.
The lamp goes off when the rebuild is terminated normally. The lamp goes on amber if
the rebuild fails.
IMPORTANT:
To abort rebuilding, power off the server. In such a case, restart the
server, hot-swap the failed hard disk, and restart rebuilding. Observe the following notes
to use the auto-rebuild feature.
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Do not power off the server. (If the server is powered off before rebuilding hard disks,
the auto-rebuild feature will not start.)
!
When you removed a hard disk, wait at least 90 seconds before installing the hard disk
back again.
!
Do not replace another hard disk while rebuilding is in progress.
Lamp