Highpoint ROCKETRAID 2300 User's Guide download pdf (Page 41)

RocketRAID 230x Driver and Software Installation

7 – OCE/ORLM

The RocketRAID host adapter supports both OCE (Online Capacity Expansion), and

ORLM (Online RAID Level Migration.

The RAID software provides support for these features through a single function,

known as OCE/ORLM.

With the OCE/ORLM function, you can transform an array from one RAID level to

another RAID level and/or resize the array dynamically, even under I/O load.

To perform OCE/ORLM on an array:

1. Highlight the “Management” menu, and select the “Array Management”

function.

2. Highlight the array you want to alter.

3. Click the button on the toolbar or select “OCE/ORLM” command from the

“Operation” menu.

4. The OCE/ORLM window will appear.

5. The interface is very similar to the Array Creation Wizard interface. Select the

type of array you wish to change the existing array into, then set any corre-

sponding parameters (cache/ initialization options, capacity, if relevant).

Notes:

1. When expanding a JBOD array, all the original disks must be included in the

target array, and these disks must be selected in the same order (as the

original array). If you want to migrate a JBOD array to another RAID level,

only the first member disk can be included in the target array. For example, a

JBOD comprised of 3 disks (1, 2, 3), can only be “migrated” using disk 1.

Disks 2 and 3 cannot be used – disk 1 would have to be combined with other

disks attached to the RocketRAID host adapter (4, 5, 6, 7, 8).

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Highpoint ROCKETRAID 2300 User's Guide Page 41