beautypg.com

Replication recovery, Eplication, Ecovery – Promise Technology 2-Year Extended Warranty for VessR2000 RAID Head User Manual

Page 310

background image

283

Product Manual

NAS Function and Management

r

epliCatioN

r

eCoVery

After a Replication Backup of a Share Disk is completed on a remote NAS, the backup is available for future

recovery. During the recovery, the remote replicated Share Disk is mounted in the same position as the original

local Share Disk. When the recovery is completed, the recovered original Share Disk automatically goes back into

the normal position and the replication backup Share Disk reverts to backup status.

Keep in mind the following points for Replication Recovery:

• Replication Recovery requires at least one previously replicated Share Disk to replace the local Share

Disk. See “Replication Backup” on page 280

.

• The remote replicated Share Disk is mounted in the same position the damaged Share Disk occupied.

• Each Share Disk recovery can occur from one replicated Share Disk at a time, even if more than one

replicated Share Disks have been created.

• When the recovery process is completed, services are automatically switched back to the newly

recovered Share Disk which is mounted in the original position.

• During the recovery process, NAS functionality is normal since the remote Share Disk is temporarily

active for local NAS users. Service to users of the Share Disk are not affected.

• Differential and compression transmission are supported.

• Whole Share Disk files are synchronized before the switch back to the recovered Share Disk occurs.

• Automatic switch back function will delay for up to 24 hours if the Share Disk is busy. After 24 hours if the

switch back has not occurred, it will be forced.

To begin the recovery process:

1. In NAS configuration:

Backup > Replication Recovery

and click on the listed Replication Recovery

configuration for the Share Disk that has been previously backed up using Replication Backup.

2. Click on the

Recover

button.

3. Choose the backup server, and click the

Apply

button.