Asus DS300j G2 Series User Manual page 106

m l D ' raID l
IGratInG a oGIcal rIve S
The term "Migration" means either or both of the following:
• Change the RAID level of a logical drive.
• Expand the storage capacity of a logical drive.
Before you begin a migration, examine your current disk array to determine whether:
• The physical drives in your array can support the target RAID level.
• There is sufficient capacity to accommodate the target logical drive size.
If you need to add physical drives to your array, be sure there are unassigned physical drives installed in your
RAID system before you begin migration.
See "Migration" on page 76, "RAID Levels" on page <?> and "RAID Level Migration" on page <?>.
M l d
igrAting A ogicAl rive
To migrate a logical drive:
1. Click the Administration tab.
2. Click the Background Activities icon.
The list of background activities appears.
3. Mouse-over Migrate and click the Start button.
4. In the Select Disk Array drop-down menu, choose the source disk array.
5. In the Select Physical Drives diagram, click the drives to add them to your array.
The ID numbers of the chosen drives appear in the field below the diagram.
6. Click the Next button.
7. Check the box next to the logical drive you want to modify.
8. From the drop-down menu, choose a target RAID level.
The choice of RAID levels depends the number of physical drives in the disk array. See the Note below.
9. In the Capacity field, accept the current capacity.
Or check the Expand Capacity box and enter a greater capacity and size in MB, GB or TB.
If there is capacity remaining, you can create an additional logical drive.
10. Click the Next button.
The logical drive ID numbers, with the original and target RAID levels and capacities are shown
11. To accept the proposed target values, click the Confirm button.
100
evel
Note
When you add physical drives to a RAID 10 array, it becomes a RAID 1E array by default.
If you are adding an even number of physical drives to a RAID 10 array and you want the target
array to be RAID 10, you must specify RAID 10 under RAID level.
c lun c
reatInG a lone
A LUN clone is an exact copy of the original LUN or logical drive, including all the data it contains, at one point
in time. Use a LUN clone as a backup or to migrate a LUN from one system to another.
Important
The action of creating a LUN momentarily takes the original LUN or logical drive offline. While
the logical drive is offline it is not available, i.e. no read or write operations are possible.
A LUN clone has the same capacity, stripe size, read and write policies as the original LUN. However, the LUN
clone can be a different RAID level. The choice of RAID levels depends on the disk array. And if you have multiple
disk arrays, you can create the LUN clone on a different disk array than the original LUN.
This action requires Super User or Power User privileges.
To create a LUN clone of a logical drive:
1. Click the Storage tab.
2. Click the Logical Drive icon.
The Logical Drive list appears.
3. Click the logical drive you want, then click the LUN Clone button.
4. Make settings as required:
• From the Choose a RAID level drop-down menu, choose the RAID level of the LUN clone.
• From the Number of Copies drop-down menu, choose the number of LUN clones you want to create.
You can make up to 8 clones of a LUN at a time.
• Check the box to the left of the Disk Array on which you want to create the LUN clone.
5. Click the Next button and review your choices.
DS300f G2 Series User Manual