NEC Express 5800 Series User Manual page 32

Recombining a split mirrored array
Procedure
Run the SSA GUI in offline mode. See
1.
Open the Configure panel by doing one of the following:
2.
o
Choose a device and click Configure in the quick navigation menu.
o
Select an available device from the Home screen, and then click Configure under the available
options.
Select Arrays from the Devices menu.
3.
Select the appropriate array from the Arrays menu.
4.
Select Manage Data Drives from the Actions panel.
5.
In the Available Tasks panel, click Manage Split Mirror Backup.
6.
Select the array to be mirrored to the source array.
7.
This array is usually the array that was split from the original mirrored array. However, it can be any
other array of the correct size.
Click OK.
8.
When SSA finishes re-mirroring the array, restart the OS.
9.
The controller uses the rebuild process to synchronize the mirrored drives. The drive online LED flashes
during the rebuild process. Depending on the hard drive size and the server load, this process can take
up to 2 hours. You can boot the OS during this time, but the logical drive is not fault-tolerant until the
rebuild is complete.
Creating a split mirror backup
This task splits an array that consists of one or more RAID 1, RAID 1+0, RAID 1 (ADM), or RAID 10 (ADM)
logical drives, and then creates two arrays: a primary array and a backup array.
Procedure
Run the SSA GUI in offline mode. See
1.
Open the Configure panel by doing one of the following:
2.
o
Choose a device and click Configure in the quick navigation menu.
o
Select an available device from the Home screen, and then click Configure under the available
options.
Select Arrays from the Devices menu.
3.
Select the appropriate array from the Arrays menu.
4.
In the Actions panel, click Create Split Mirror Backup.
5.
A verification and message dialog box appears.
Click OK.
6.
A details window appears. Click Finish.
7.
SSA creates the array according to the following rules:
o
If the original array contained RAID 1 or RAID 1+0 drives, then the primary array will contain RAID 0
drives.
o
If the original array contained RAID 1 (ADM) drives, the primary array will contain RAID 1 drives.
o
If the original array contained RAID 10 (ADM) drives, the primary array will contain RAID 1+0 drives.
o
The backup array always contains RAID 0 logical drives.
o
The primary array continues to be fully accessible to the operating system while the backup array is
hidden from the operating system.
"Accessing SSA in the offline
"Accessing SSA in the offline
environment."
environment."
SSA graphical user interface 32