Synchronizing The Data Between The Acting Primary Volume And The Original Primary Volume; Creating A New Primary Volume At The Original Production Site; Creating Snapshots Of Data To Synchronize - HP StorageWorks P4000 User Manual

Synchronize the data between the acting primary volume and the restored primary volume before
returning the acting primary volume to its remote volume state.
If the primary volume is not available:
Create a new primary volume, synchronize the data with the acting primary volume, and then
return the acting primary volume to a remote volume.

Synchronizing the data between the acting primary volume and the original primary volume

Create snapshots that contain the data that you need to synchronize.
Table 7 Creating snapshots of data to synchronize
Action
1. Stop applications
that are accessing the
volumes.
2. Make a snapshot of
the original volume.
3. Make the acting
primary volume into the
remote volume. This
automatically creates a
snapshot of the acting
primary volume.
Synchronize the data
Synchronize the snapshots OrigPrimarySS_1 and ActPrimarySS_1 that were created in Steps
2 and 3 of Table 7
In the simplest case, to synchronize the snapshots, remote copy the remote snapshot back to the
original primary volume.

Creating a new primary volume at the original production site

If the original primary volume is not available, designate a new primary volume, synchronize the data
from the acting primary volume, and then configure the timetable for the scheduled remote snapshot
schedule on the new primary volume.
1. Stop the application that is accessing the acting primary volume.
2. Create a remote snapshot of the acting primary volume.
3. As your target, create a remote volume, which will later be converted into your primary volume.
4. Convert the remote volume into a primary volume.
5. Make the acting primary volume into the remote volume.
This creates a snapshot of that volume.
6. Configure a new timetable for the scheduled remote snapshots on the new primary volume.
Volumes and snapshots
on primary management
group
OrigPrimary-
Vol_1OrigPrimarySS_1
on page 37.
Volumes and snapshots
on remote management
group
Remote-
vol_1ActPrimarySS_1
P4000 Remote Copy user guide
What this step accom-
plishes
Creates a snapshot of
the original primary
volume that includes the
data from 1:00 - 1:30
p.m.
Returns the remote man-
agement group to its
original configuration.
In addition, you capture
the 1:33 to 2:00 p.m.
data.
37