Adaptec 2130SLP User Guide - Page 91

Working with Hot Spares, Hot Spare Limitations, Dedicated Spare or Global Spare?

Page 91 highlights

Chapter 9: Managing Logical Drives and Hot Spares ● 90 4 When prompted, click Yes to delete the device, or No to cancel the deletion. If you click Yes, the logical device is deleted. The disk drives or drive segments included in the logical device become available, and can be used to create a new logical drive (see page 77), or to expand an existing logical drive (see page 84). Working with Hot Spares A hot spare is a disk drive that automatically replaces any failed drive in a logical drive, and can subsequently be used to rebuild that logical drive. (For more information on recovering from a disk drive failure, see page 147.) Hot Spare Limitations ● You can't create a hot spare for RAID 0 logical drives, simple volumes, or spanned volumes. ● You can't create a hot spare from a disk drive that is already part of a logical drive. ● You should select a disk drive that is at least as big as the largest disk drive it might replace. Dedicated Spare or Global Spare? A global hot spare is not assigned to a specific logical drive and will protect any logical drive on the controller (except RAID 0 logical drives). You can designate a global hot spare before or after you build logical drives on a controller; you can also designate a global hot spare while you're creating a logical drive. To designate a global hot spare, see page 91. A dedicated hot spare is assigned to one or more specific logical drives and will only protect those logical drives. You must create the logical drive before you can assign a dedicated hot spare. To assign a dedicated hot spare, see page 92.

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Chapter 9: Managing Logical Drives and Hot Spares
90
4
When prompted, click
Yes
to delete the device, or
No
to cancel the
deletion.
If you click
Yes
, the logical device is deleted. The disk drives or drive
segments included in the logical device become available, and can be
used to create a new logical drive (see
page 77
), or to expand an
existing logical drive (see
page 84
).
Working with Hot Spares
A
hot spare
is a disk drive that automatically replaces any failed drive in
a logical drive, and can subsequently be used to rebuild that logical
drive. (For more information on recovering from a disk drive failure,
see
page 147
.)
Hot Spare Limitations
You can’t create a hot spare for RAID 0 logical drives, simple
volumes, or spanned volumes.
You can’t create a hot spare from a disk drive that is already part of a
logical drive.
You should select a disk drive that is at least as big as the largest disk
drive it might replace.
Dedicated Spare or Global Spare?
A
global
hot spare is not assigned to a specific logical drive and will
protect any logical drive on the controller (except RAID 0 logical
drives). You can designate a global hot spare before or after you build
logical drives on a controller; you can also designate a global hot spare
while you’re creating a logical drive. To designate a global hot spare, see
page 91
.
A
dedicated
hot spare is assigned to one or more specific logical drives
and will only protect those logical drives. You must create the logical
drive before you can assign a dedicated hot spare. To assign a dedicated
hot spare, see
page 92
.