Promise Technology Pegasus3 R4, Product Manual, Page: 197 / 232

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Promise Technology Pegasus3 R4/R6/R8
Transition happens manually when you specify a different unconfigured physical drive to transition
(move) the data from the revertible spare drive.
See the example on the following pages.
Example
Following is an example to explain the Transition function.
In the example above, there is a four-drive RAID 5 disk array and a global spare drive. Physical drives
1, 2, 3, and 4 belong to the disk array. Physical drive 5 remains unconfigured. Physical drive 6 is a
revertible spare drive.
If a physical drive fails in a disk array and there is a spare drive of adequate capacity available, the
controller automatically rebuilds the array using the spare drive. In this example, physical drive 3 failed
and the array is rebuilt using physical drive 6, the revertible spare drive.