Using tape for initial synchronization and backup, Using tape for, Using tape for initial – HP 3PAR Operating System Software User Manual
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18 Using Tape for Initial Synchronization and Backup
For the first data synchronization between systems, it can be faster to back up primary volume
groups to tape and then copy data from the tape to secondary volume groups.
IMPORTANT:
Using tape for synchronization and backup is not supported for SLD configurations.
CAUTION:
To use the tape backup method for the initial synchronization of your remote-copy
data, you must use block-based backup software. File-system-based backup software does not
correctly back up remote-copy data.
Perform the following procedure to use tape for initial synchronization and backup:
1.
Set up your remote-copy configuration and create the remote-copy groups.
2.
Create a read-only snapshot of the volume you wish to add to the remote-copy group. On the
primary system (System1), issue the following command:
# createsv –ro <read_only_snap> <base_vol>
where <read_only_snap> represents the name of the snapshot.
3.
Verify that the snapshot belongs to the correct volume and is a read-only (RO) snapshot:
a.
Issue the showvv command.
b.
Check that the copy of field displays the volume group to which the snapshot should
belong.
c.
Check that the Rd column displays RO.
4.
Use the block-based backup software to back up the snapshot to tape.
5.
To create a volume of matching size on the secondary system (System2), issue either of the
following commands.
•
To create a TPVV, issue the following command:
# createtpvv -snp_cpg <snap_cpg> <usr_cpg> <vv_name> <size>
•
To create an FPVV, issue the following command:
# createvv -snp_cpg <snap_cpg> <usr_cpg> <vv_name> <size>
6.
Use the block-based backup created in
to restore the data from the tape to corresponding
virtual volume in the remote-copy group on the backup system (System2).
7.
On the primary (System1), issue the admitrcopyvv command to specify the snapshot created
in
:
# admitrcopyvv <VV_name>[:<snapname>] <group_name> <target_name>:<sec_VV_name>
8.
Activate HP 3PAR Remote Copy for the volume group you created on the primary system. On
the primary system (System1), issue either of the following commands:
# startrcopygroup <group_name>
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