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Galaxy Web GUI User Reference Manual

2-12 Operating without Spare Drives

 If a spare drive exists in the same logical drive, the controller will

automatically mount the spare drive and start rebuilding data in the

background.

 Depending on system design, it may be possible to remove a defective

drive and replace it with a new drive without shutting down the system

(hot-swapping). All HDX subsystems support drive hot-swapping.

 The replacement drive must then be assigned as a new spare drive.

2.8. Operating without Spare Drives

The following are guidelines for disk failure recovery when a spare drive is not

available:

 Depending on the design of the system, it may be possible to remove a

defective drive and replace it with a new drive without shutting down the

system (hot-swapping). All HDX subsystems support drive hot-swapping.

 If the replacement drive is installed on the same channel and ID (the

original drive slot where the faulty drive was), you can then proceed with

data rebuilding.

 If the replacement drive is installed on a different channel or ID (different

drive slot) or the periodic drive scan function has been disabled, you need

to scan in the new drive first, and then assign it as a spare drive of the

logical drive which had a drive failure. Data rebuilding will have to be

manually initiated.

IMPORTANT!

Although the RAID system provides uninterrupted disk access even after

a disk failure, do not leave a failed drive

unattended. Without

replacement, the system will not survive a second physical drive failure on

the same logical drive (RAID3 and 5). A defective drive must be promptly

replaced and data rebuilt.

CAUTION!

When performing hot-swapping, be sure to remove only the defective

drive. Removing the wrong drive will result in complete, irrecoverable data

loss (RAID3 or RAID5). Use the Enclosure View window or Logical Drive

Information window to locate exactly which physical drive has failed.

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