HP ML110 G1 User Manual page 34

The drives are configured by default into three logical disks at the SATA
controller level as follows:
Table 6
Logical disk
1
2
3
Primary Operating System Disk
Physical Drive 0
Figure 7
NOTE:
and 3. In Disk Manager, logical disks are displayed as 0, 1, and 2.
The primary OS logical drive resides on disk 0 and is mirrored on disk 1
while the secondary OS logical drive resides on disk 2 and is mirrored
on disk 3. If a single disk failure occurs, the system will still function off
the mirrored disk. If the primary OS becomes corrupted and un-bootable,
the secondary OS is available for data backup prior to using the Quick
Restore DVD to restore the system to the factory default state.
The data volume is configured as a hardware RAID 5 based basic
partition across all four drives. This ensures redundancy in the event of a
drive failure. The data volume is accessible by both the primary OS and
secondary OS.
Refer to the administration guide for additional information.
34 Server Storage
Hard drive configuration
RAID
RAID 1
RAID 1
RAID 5
Logical Disk 1
RAID 1
Physical Drive 1
Hardware RAID
In Adaptec Storage Manager, logical disks are labeled 1, 2,
Size/allocation
9 GB across physical drive 0, 1
9 GB across physical drive 2, 3
Remaining physical disk space across all
physical drives
Secondary Operating System Disk
Logical Disk 3
Data Volume
RAID 5
Physical Drive 2
Logical Disk 2
RAID 1
Physical Drive 3
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