Promise Technology 2-Year Extended Warranty for VessR2000 RAID Head - Manual (Page 610)

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Product Manual Technology Background
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.
1
2
3
4
5
6
Rebuild
to Spare
Failed
Drive