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ASUS PCI-DA2200 User’s Manual
using a 9GB drive as the Global Spare drive for a failed drive that
comes from Logical Drive 1 or 2 will bring huge amount of excess
capacity since these logical drives require 4 GB only. In the settings
below, the 9 GB Local Spare Drive will aid Logical Drive 0 once a
drive in this logical drive failed. If the failed drive is in Logical Drive
1 or 2, the 4 GB Global Spare drive will immediately give aid to the
failed drive.
3.2.2
Identifying Drives
Assuming there is a failed drive in the RAID 5 logical drive, make it a
point to replace the failed drive with a new drive to keep the logical
drive working.
When trying to remove a failed drive and you mistakenly removed
the wrong drive, you will no longer be able to read/write the logical
drive because the two drives may have already failed.
To prevent this from happening, the controller provides an easy way
of identifying for the failed drive. That is, the read/write LED of the
failed hard drive will light. This LED will
prevent you from
removing the wrong drive, and is also helpful when locating for a
drive.
Logical Drive 0
Local Spare Drive
1
2
3
LS
Logical Drive 1
1
2
Logical Drive 2
1
2
3
4
Global Spare Drive
GS
(9GB)
(9GB)
(9GB)
(9GB)
(4GB)
(4GB)
(4GB)
(4GB) (4GB)
(4GB) (4GB)
Local Spare Drive always
has higher priority than
Global Spare Drive.