How Do I Configure a Mylex Controller for the First Time?
1-14
RAID EzAssist User’s Manual
Figure 1-9. Do You Want a Spare Drive?
A spare drive (hot spare or standby drive) offers an additional level of fault
tolerance for existing fault tolerant arrays. If a drive in the array fails, the
presence of a spare drive allows the failed drive’s data to be rebuilt onto the
spare. After rebuild is complete, the array could still accept another drive
failure with no loss of data (although there would be degraded performance).
It is usually beneficial to reserve a spare drive for the array, if you can afford
not to use the capacity of the drive for array data storage.
Reserving a spare drive lowers the total useable capacity of the array by the
capacity of that spare drive.
☞
If you want your array to reserve a spare drive, press Enter
with Yes selected.
☞
If you prefer not to reserve a spare drive and thereby use all
the available drives in the array, use the arrow key to select No,
then press Enter.
■
Optimization Priority
The Optimization Priority screen is displayed under the following
conditions:
