Changing The Raid Level Of A Disk Group - Dell PowerVault MD3220 Owner's Manual

Select the RAID controller module.
d
CAUTION:
Possible loss of data access – If you do not use a multi-path driver,
shut down any host applications that are currently using the virtual disk. This
action prevents application errors when the I/O path changes.
Click Yes.
e
The ownership of the virtual disk is changed. I/O to the virtual disk is now
directed through this I/O path. You are finished with this procedure.
NOTE:
driver reconfigures and recognizes the new path. This action usually takes less
than five minutes.
3 To change the RAID controller module ownership of a disk group, perform
these steps:
Select the Logical tab.
a
Select the disk group.
b
Select Disk Group Change Ownership/Preferred Path.
c
Alternatively, you can right-click the disk group and select Change
Ownership/Preferred Path from the pop-up menu.
Select the RAID controller module.
d
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.
Click Yes.
e
The ownership of the disk group is changed. I/O to the disk group is now
directed through this I/O path. You are finished with this procedure.
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.
The virtual disk might not use the new I/O path until the multi-path
Configuration: Disk Groups and Virtual Disks
125