HP P6000 Continuous Access Software - Manual (Page 261)

Stop host I/O to the disk that is being restored. 1.
2.
Unmount the disk.
This forces the disk's write cache to be flushed (emptied).
3. Perform an instant restore to the disk. Procedure .
If the restored host volume does not have consistent data left in cache after following this
procedure, repeat the procedure.
See Restoring host volumes (instant restore) for the detailed procedure.
Instant restore from mirrorclones
This feature allows you to restore data on a virtual disk with data from its fractured mirrorclone.
For example, restore the virtual disk named sales_db with the data from it's fractured mirrorclone
sales_db_backup.
sales_db_backup <====== sales_db
replica to restore from (fractured mirrorclone) disk being restored
See also, Instant restore overview (virtual disks) .
Scenario, restoring from "a planned point-in-time"
1. Create a mirrorclone of the disk to be restored at some future date. Procedure .
2. At a point-in-time you want, fracture the mirrorclone.
The mirrorclone contains point-in-time data.
3. When necessary, restore the disk from its mirrorclone. Procedure .
Scenario, restoring from "the most recent"
1. Create a mirrorclone of the disk to be restored at some future date. Procedure .
2. Leave the mirrorclone in a synchronized state with its source.
The mirrorclone always contains the most recent data.
3. When necessary to restore the disk, fracture its mirrorclone. Procedure
4. When a restore is required, restore the disk from its mirrorclone. Procedure .
Instant restore from snapclones
This feature allows you to restore data on a virtual disk with data from one of its snapclones. For
example, restore the virtual disk named sales_db with the data from the snapclone sales_db_backup.
sales_db_backup <====== sales_db
replica to restore from (snapclone) disk being restored
See also, Instant restore overview (virtual disks) .
Scenario, restoring from "planned points-in-time"
1. At the points-in-time you want (for example, daily), create snapclones or preallocated
snapclones of the disk. The snapclones contain point-in-time data. Procedures:
Creating
snapclones and Creating preallocated snapclones .
2. When necessary, restore the disk from an appropriate snapclone. Procedure .
Virtual disk concepts 261