Heal Array; Change Array Drive Type - NEC Express 5800 Series User Manual

When SSA finishes creating the split mirror backup, the new backup array appears in the Devices menu:
8.
The array includes the designation "Backup" at the beginning of the array name.
Re-mirroring, rolling back, or re-activating a split mirror backup
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 Available Tasks panel, click Manage Split Mirror Backup.
5.
Select one of the following actions:
6.
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.
o
Re-mirror the array and roll back to the contents of the backup array. Discard existing data.
This option re-creates the mirrored array but restores its original contents, which are in the backup
array. NEC recommends that you do not perform this option under the following circumstances:
o
In an online environment
o
If the logical drive to be rolled back is mounted
o
If the logical drive to be rolled back is in use by the operating system
o
Activate the backup array.
This option makes the backup array fully accessible to the operating system. SSA removes the
designation "backup" from the name of the array.

Heal array

The Heal Array operation allows you to replace failed physical drives in the array with healthy physical drives.
The original array and logical drive numbering will be unaffected after the replacement. Please note the
following conditions and restrictions for the Heal Array operation:
• The replacement physical drives and the original drives must be of the same interface type (such as
SAS or SATA) as the original drives.
• The operation is available only if enough unassigned physical drives of the correct size are available.
• The array has at least one failed drive.
• The array is not transforming (for example, rebuilding to a spare).
• The array has a working cache, making it capable of transformation.

Change array drive type

SSA enables you to transfer the contents of an array to an existing empty array or a new array. During this
operation, all logical drives transfer from the original array to the destination array. The original array is
deleted, and the drives that were being used are freed and listed as unassigned drives.
Changing an array drive type is a time-consuming process for two reasons: all data in each logical drive is
copied to the destination array, and the controller performs all data transformations while servicing IO
requests to other logical drives.
"Accessing SSA in the offline environment."
SSA graphical user interface 33