Chapter 3 Configuration Settings and Display
3.3 RAID Group Management > expand raid-group
ETERNUS CLI User’s Guide
Copyright 2015 FUJITSU LIMITED P2X0-1030-09ENZ0
122
expand raid-group
This command expands a RAID group (Logical Device Expansion). The capacity of an existing RAID group is
expanded by adding new disks to the RAID group. A new RAID level can also be specified. Any volumes in the
existing RAID group are relocated to the new RAID group.
■ Syntax
■ Parameter
■ Example(s)
• RAID5+0 is not supported, not even for pure capacity expansion operations
• Expanding a RAID level other than RAID0 to RAID0 is not supported.
• When RAID group capacity is expanded without changing the RAID level, specify only the new disks to be added for the
"-disks" parameter.
• If the RAID level is changed with RAID group expansion, at least one disk that is already configured in an expansion
source RAID group and all the new disks that are to be added must be specified for the '-disks' parameter.
expand raid-group {-rg-number
rg_number
| -rg-name
rg_name
}
-disks
disks
[-level {0|5|6|10}] [-name
name
]
-rg-number
or
-rg-name
This parameter specifies a RAID group identifier. Only one RAID group identifier can be
specified. For details, refer to "1.2.8 RAID Group Syntax" (page 22)
.
-disks This parameter specifies the disks to add to a RAID group. One or more parameters can be
specified. This parameter specifies the disk numbers for the disks that configure the RAID
group before expansion and the numbers for the disks that are to be added. For details, refer
to "1.2.3 Disk Syntax" (page 19)
.
-level Optional. This parameter specifies the new RAID level of the expanded RAID group. RAID5+0
level is not supported.
0RAID0
5RAID5
6RAID6
10 RAID1+0
-name Optional. This parameter specifies the new RAID group name to be used for the expanded RAID
group. For details, refer to "1.2.4 Alias Name Syntax" (page 20)
.
The following example expands the RAID group named "RGP001" using six disks, and changes the RAID level
to RAID5:
CLI> expand raid-group -rg-name RGP001 -disks 101-103,201-203 -level 5
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