Software Manual

3.38
Initial Synchronization Using Tape Backup
Remote Copy User’s Guide InForm OS Version 2.3.1
◆ On InServC:
As shown in the examples above, once the synchronization completes, the primary and
secondary volumes’
SyncStatus should show a status of Synced.
3.7 Initial Synchronization Using Tape Backup
For a very large volume, it might be faster to perform the initial synchronization of the backup
server with the primary server by backing up the primary volume group to tape and then
restoring the secondary volume group from tape rather than synchronizing the volume groups
over the Remote Copy links.
To perform the initial synchronization using tape backup, follow the procedures described in
this chapter for setting up Remote Copy. However, when issuing
startrcopygroup
<group_name>
on the primary server (as described in Start Copying on page 3.23), be sure to
use the -nosync option. This option indicates that the volumes do not need to be
synchronized, and marks them as
Synced.
3.7.1 Synchronizing Volume Groups
If the primary volume group needs to be used for writes before the secondary volume group is
initialized from the tape backup, use the following procedure to bring the primary and
secondary volume groups into synchronization and to start Remote Copy operations for the
storage server pair.
# showrcopy groups
Group Information
Name Target Status Role Mode Options
testgroup.r96 InServA Started Secondary Periodic over_per_alert
LocalVV ID RemoteVV ID SyncStatus LastSyncTime
testvv.C.0 300 testvv.A.0 100 Synced 2008-09-11 17:52:58 PDT
testvv.C.1 301 testvv.A.1 101 Synced 2008-09-11 17:53:01 PDT
testvv.C.2 302 testvv.A.2 102 Synced 2008-09-11 17:53:00 PDT
Name Target Status Role Mode Options
testgroup.r96 InServB Backup Secondary Periodic over_per_alert
LocalVV ID RemoteVV ID SyncStatus LastSyncTime
testvv.C.0 300 testvv.B.0 200 Synced 2008-09-11 17:52:49 PDT
testvv.C.1 301 testvv.B.1 201 Synced 2008-09-11 17:52:50 PDT
testvv.C.2 302 testvv.B.2 202 Synced 2008-09-11 17:52:48 PDT