HP 3PAR Operating System Software - Manual (Page 228)

5. Right-click and select Failover Remote Copy Group(s).
The Remote Copy Failover dialog box appears.
When performing failover on Remote Copy groups, the groups on the backup system reverse
roles to become primary groups, that is, data is written directly to those groups as data would
normally be written to groups on the primary system.
6. (Optional only in SLD configuration) Select Advanced to display additional failover options.
If you do not want to check for newer data, select Do not check other targets for newer data.
7. Click OK.
8. Click Yes when prompted for confirmation.
In the right pane of the Remote Copy Groups screen:
•
Primary-Rev is displayed under the Backup Role column indicating that the groups on the
backup system are currently acting as the primary groups. Any data is written to the groups
on the backup system.
•
The DR state column displays Failover.
Switch Failover Remote Copy Groups
NOTE: The switch failover operation is only allowed for SLD Remote Copy setups.
For SLD Remote Copy, the HP 3PAR Management Console allows you to switch failover of Remote
Copy groups from one backup system to the other backup system. For example, in an SLD Remote
Copy setup where source system A is backed up to backup systems B and C, if Remote Copy
groups are failed over from source system A to backup system B, you can switch failover from
backup system B to backup system C.
NOTE: The following procedure assumes that failover has already been performed on one
backup system.
To switch failover Remote Copy groups:
1.
Navigate to the Remote Copy Groups screen.
2. In the left pane, right-click the graphic of the system on which you want to switch failover and
select Switch Failover Groups from .
The Remote Copy Switch Failover dialog box appears.
3. Click OK.
4. Click Yes when prompted for confirmation.
In the right pane of the Remote Copy Groups screen:
•
Primary-Rev is displayed under the Backup Role column for the system you switched failover
to, indicating that the groups on the backup system are currently acting as the primary groups.
Any data is written to the groups on the backup system.
•
The DR state column displays Failover.
Revert Remote Copy Groups
You can undo a failover operation by reverting the Remote Copy groups to their normal state. For
example, you might wish to revert the groups if you have failed over the groups to the backup
system, but the source system has come back online and there has not been any new data written
to the backup system.
To revert Remote Copy groups:
1.
Navigate to the Remote Copy Groups screen.
2. In the right pane, select the Remote Copy group(s) on which you performed failover.
228 Configuring and Managing Remote Copy