Adaptec 5325302057 - Snap Server 750i NAS, User Manual

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Creating and Modifying Pools
Chapter 8 Modifying Your iSCSI Storage 91
You can also migrate from RAID 1 or RAID 5 to RAID 0. If the pool has a spare
drive associated with it, the RAID 0 pool retains the spare drive.
Note
Migrations that do not involve a change in RAID level are also supported in
RAID 0, RAID 1, RAID 5, and RAID 6. See “Adding Capacity to a Pool” on page 90
for more information.
To change the RAID level of a pool:
1
In the Logical Devices View, select the pool you want.
2
In the Actions menu, click
Expand or migrate pool
.
The wizard opens to the Choose RAID Level window.
3
Select a new RAID level. (Only supported RAID levels are listed.)
4
Click
Next
.
The Modify Pool window opens.
5
If prompted, select additional disk drives to support the new RAID level.
6
Click
Next
, then review the pool settings.
7
Click
Apply
, then click
Yes
to change the pool’s RAID level.
The RAID level is changed.
Moving a Pool to Another iSCSI Storage Appliance
You can move an existing pool to another iSCSI Storage Appliance, if required.
When you move a pool, you transfer its RAID data and transfer its disk drives to the
new appliance.
About Foreign and Alien Pools
To move a pool, first you export it from the original iSCSI Storage Appliance. An
exported pool is referred to as a foreign pool . Then, you import the foreign pool to
the new iSCSI Storage Appliance.
If an error (for instance, a power failure) occurs while a pool is being created, and
the pool is only partially completed, it’s referred to as an alien pool. In Adaptec
Storage Manager, alien pools are grayed out in the Logical Devices View and can’t
be used to store data. You should delete alien pools from Adaptec Storage Manager.