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1-3 Disk Group
A disk group is configured with more than one HDD.
Up to two disk groups are permitted by the disk array controller when two HDD‟s are installed in the server.
The figure below shows a sample configuration. Two HDD‟s are connected to the disk array controller,
creating one disk group (DG).
1-4 Virtual Disk
A virtual disk is a logical drive defined in a disk group. It is recognized as a physical drive by the OS. Up to 40
virtual disks are permitted by the disk array controller.
The figure below shows a sample configuration in which the disk array controller is connected to two HDD‟s,
creating one disk group (DG). Two RAID1 virtual disks (VD) are defined in the DG.
1-5 Hot-Swap
The hot-swap feature enables a HDD to be removed (or replaced) during system operation.
Disk array controller
HDD 0
(36 GB)
Disk array controller
VD0-1
20GB
VD1-1
16 GB
HDD 1
(36 GB)
Disk Group 0: 72 GB
HDD 1
(36 GB)
DG0 72 GB
VD0 (RAID1)
VD0-2
20 GB
20GB
VD1-2
VD1 (RAID1)
16 GB
16 GB
HDD 2
(36 GB)
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