Upgrading Your Server 9-11

When the hard disk drives are in the disk array configuration, you can restore the state before an error using the auto-rebuild feature that stores the data in the old hard disk drive into a new one.

The auto-rebuild feature is available for the RAID1, RAID5, or RAID10 disk array configuration.

NOTE: Onboard RAID controller (HostRAID) supports RAID levels

RAID0 and RAID1.

Auto-rebuild is carried out when you hot-swap a failed hard disk drive with a new one (replace the disk while the server is powered). While auto-rebuild is in progress, the DISK LED flashes green and amber alternatively to indicate it.

IMPORTANT:

„When auto-rebuild fails, the DISK LED lights in amber. Remove and install the hard disk drive again to restart auto-rebuild.

„If the disk array monitoring utility is installed, it may display or act as follows. If the DISK LED does not light in amber after auto- rebuild, however, auto-rebuild has completed successfully.

–Displays "Rebuild was cancelled" on the screen while auto- rebuild is in progress.

–Appears to stop and restart auto-rebuild.

Observe the following notes for auto-rebuild.

„Do not power off the server in the period between a hard disk drive error and completion of auto-rebuild.

„When you removed a hard disk drive, wait at least 90 seconds before installing the hard disk drive back again.

„Do not replace another hard disk drive while rebuilding is in progress. (The DISK LED flashes in green and amber alternatively while rebuilding the hard disk drive.)