IBM 866011U - Netfinity 5500 - 8660, Hardware Maintenance Manual

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RAID level 5 logical drives (one 500 MB and one
1000 MB) and 2800 MB of free space. If you use the
logical-drive migration procedure and add a 2150 MB
hard disk drive to increase the amount of free space,
the end result will be two RAID level 5 logical drives
(one 500 MB and one 1000 MB) and 4950 MB of free
space.
Ÿ
You can increase the size of all the logical drives
proportionally in a disk array. This is useful when you
want to increase the size of the currently defined
logical drives. Refer to the following illustration.
500 MB
1000 MB
2800 MB
Disk 1 Disk 2
Before LDM
Disk 3
750 MB
1500 MB
4200 MB
Disk 1 Disk 2
After LDM
Disk 3 Disk 4
Logical Drive 0
Logical Drive 1
Free Space
Logical Drive 0
Logical Drive 1
Free Space
For example, an existing array uses three 2150 MB
hard disk drives that are configured as two RAID
level 5 logical drives (one 500 MB and one 1000 MB)
and 2800 MB of free space. If you use the
logical-drive migration procedure and add a 2150 MB
hard disk drive to proportionally increase the size of
the disk array, the end result will be two RAID level 5
logical drives (one 750 MB and one 1500 MB) and
4200 MB of free space.
To add a physical drive:
1. Click on the icon on the tool bar or select
Manage Disk Arrays from the Advanced pull-down
menu; then, select Logical Drive Migration.
A screen similar to the following appears.
Logical Drive Migration
Logical Drive Migration Options
Change RAID Level
Add Physical Drive(s)
OK
Cancel
2. Select Add Physical Drive(s); then, click on OK.
A prompt appears requesting that you select from 1 to
3 Ready (RDY) drives to add to the existing array.
3. Click on the appropriate RDY drives. An X appears
beside the selected drive.
4. Click on OK.
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