Creating a split mirror backup – HP Smart Storage Administrator User Manual
Page 40
Operations 40
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.
To create a split mirror backup:
1.
Run the HP SSA GUI in offline mode. See "Accessing HP SSA in the offline environment (on page
)."
2.
Open the Configure panel by doing one of the following:
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.
3.
Select Arrays from the Devices menu.
4.
Select the appropriate array from the Arrays menu.
5.
In the Actions panel, click Create Split Mirror Backup.
A verification and message dialog box appears.
6.
Click OK.
7.
A details window appears. Click Finish.
HP 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.
8.
When HP SSA finishes creating the split mirror backup, the new backup array appears in the Devices
menu:
The array includes the designation "Backup" at the beginning of the array name.
Re-mirroring, rolling back, or re-activating a split mirror backup
1.
Run the HP SSA GUI in offline mode. See "Accessing HP SSA in the offline environment (on page
)."
2.
Open the Configure panel by doing one of the following:
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.
3.
Select Arrays from the Devices menu.
4.
Select the appropriate array from the Arrays menu.
5.
In the Available Tasks panel, click Manage Split Mirror Backup.
6.
Select one of the following actions:
o
Re-mirror the array and preserve the existing data. Discard the backup array.
This option re-creates the original mirrored array with the current contents of the primary array.