User manual

SuperTrak EX Series User Manual
270
Rebuilding a Disk Array Automatically
When you rebuild a disk array, you are actually rebuilding the data onto a
replacement physical drive.
Normally, a Critical disk array automatically rebuilds itself using a designated
spare drive. See “Creating a Spare Drive” on page 99 or page 179.
If you do not have a spare drive, the Critical disk array automatically rebuilds
itself as soon as you remove the failed drive and insert a replacement drive. Note
the replacement drive requirements, below.
During the rebuild:
• The alarm sounds two short beeps, repeated
• No warning icon displays over the disk array or logical drive icons
The disk array’s Operational Status as OK, Rebuilding.
You can still read and write data to the logical drive. However, fault tolerance
is lost until the disk array completes the rebuild.
After a successful rebuild:
• The alarm is silent
• The logical drive’s Operational Status is OK
• The rebuilt physical drive Status LED displays steady green
Rebuilding a Disk Array Manually
If the Auto Rebuild function is disabled and no spare drives are available, you
must initiate the procedure.
First, identify and replace the failed physical drive. See page 267 or page 268.
Then rebuild the disk array as described below.
Rebuilding with WebPAM PRO
To manually rebuild a disk array in WebPAM PRO:
1. Click the Subsystem icon in Tree View.
Important
The replacement physical drive must be:
• The same media type, HDD or SDD, as the other drives in the
array.
• Equal or larger capacity than the failed drive it replaces.
• Free of any previous configuration data. See page 269.