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3ware® User Guide > First-Time RAID Configuration Using 3BM > Specifying a Hot Spare

Specifying a Hot Spare
You can designate one of the Available Drives as a hot spare in 3BM. If a hot spare is specified and a redundant unit degrades, an event notification will be generated. If the hot spare is of the same type (SAS or SATA) and of adequate size, it will automatically replace the failed drive without user intervention.
To specify a hot spare
1
In the list of Available Drives, highlight the drive to use.
2
Type s to specify that the selected drive will be the hot spare.
You’ll see the words “Hot Spare” appear next to the drive in the Available Drives list.
Show Hot Spare Indicated
If a hot spare is already enabled, you can disable it by following the same process.
 
Note: In order to replace a failed drive in a degraded unit, a hot spare drive must have the same or larger storage capacity than the failed drive.

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