Asus PCI-DA2200 User Manual page 16

Spare Drive will join that logical drive and automatically starts to
rebuild.
Global Spare Drive
GS
1 2
3
Logical Drive 0
1 2
3
Logical Drive 0
The ASUS PCI-DA2200 RAID controller provides both Local Spare
Drive and Global Spare Drive functions. On certain occasions,
applying these two functions together will better fit various needs.
Take note though that the Local Spare Drive always has higher
priority than the Global Spare Drive.
In the example shown on the next page, the member drives in Logical
Drive 0 are 9 GB drives, and the members in Logical Drives 1 and 2
are all 4 GB drives. It is not possible for the 4 GB Global Spare Drive
to join Logical Drive 0 because of its insufficient capacity. However
3-6
Global Spare Drive
1 2
Logical Drive 1
Global Spare Drive
GS
X
1 2
Global
GS
Spare
Drive
Logical Drive 1
GS
1
4
Logical Drive 2
When a member drive from any
logical drive fails, the Global Spare
Drive joins that logical drive and
automatically starts to rebuild.
1 2
4 3
Logical Drive 2
ASUS PCI-DA2200 User's Manual
Global Spare Drives serve
any logical drives.
2
3