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Configuration: Disk Groups and Virtual Disks 133
CAUTION: Possible loss of data access– Changing ownership at the disk group
level causes every virtual disk in that disk group to transfer to the other RAID
controller module and use the new I/O path. If you do not want to set every virtual
disk to the new path, change ownership at the virtual disk level instead.
6
Click
Yes
.
The ownership of the disk group is changed. I/O to the disk group is now
directed through this I/O path.
NOTE: The disk group might not use the new I/O path until the multi-path driver
reconfigures and recognizes the new path. This action usually takes less than
five minutes.
Changing the RAID Level of a Disk Group
Use the Change
RAID Level option to change the RAID level on a selected
disk group. Using this option changes the RAID levels of every virtual disk
that comprises the disk group. Performance might be slightly affected during
the operation.
Keep these guidelines in mind when you change the RAID level of a disk group:
• You cannot cancel this operation after it begins.
• The disk group must be in
Optimal
status before you can perform
this operation.
• Your data remains available during this operation.
• If you do not have enough capacity in the disk group to convert to the new
RAID level, an error message appears, and the operation does not
continue. If you have unassigned physical disks, use the
Disk Group
Add Free Capacity
(Physical Disks) option to add additional capacity to
the disk group. Then retry the operation.
To change the RAID level of a disk group:
1
Select the
Logical
tab.
2
Select the disk group.
3
Select
Disk Group
Change
RAID Level
.
book.book Page 133 Wednesday, June 8, 2011 5:01 PM