HP D2D .HP D2D Backup System user guide (EH985-90907, March 2011) - Page 23

Why make target libraries visible?, Best practices for using this feature

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Why make target libraries visible? There are two occasions when it may be useful to make a target library visible to the backup application on the host. • To confirm that replication is working correctly and check the integrity of the replicated backup by doing a test restore • To perform manual tape copy jobs to any tape device on the network using the backup application IMPORTANT: You cannot change data on a Target library cartridge; you may only load it temporarily into a physical tape device to read it. Best practices for using this feature WARNING! If you do not follow these best practices, unstable and possibly damaging results may occur. Cartridges may be marked as unusable or the backup application may attempt to write to target cartridges. • Ensure that no replication jobs to the selected target cartridge are in progress • Ideally check that no backup jobs to the mapped source cartridges are scheduled • Ensure that the backup application media server instance to be used is not within the same cell/domain that can access the source cartridge • Import the data on the target cartridge into the backup application (this operation must be repeated after each replicate operation to the cartridge) • Perform the desired operation on the cartridge, which may be: • Verify the cartridge using the backup application either using a verify command or by performing a restore • Copy the cartridge to a physical tape device connected to the media server How is a target library made visible? 1. Create the replication mapping, as normal. See "Running the replication wizard (NAS)" on page 87 or "Running the replication wizard (virtual tape devices)" on page 78, as appropriate. 2. From the host that has access to the target library, on the Virtual Tape Devices-Devices page select the target library in the Devices list. 3. Click Edit. 4. The Port defaults to None. Select an iSCSI or FC port, as appropriate. 5. If you have selected an iSCSI port, enter the iSCSI Initiator Name. Backup System user guide 23

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Why make target libraries visible?
There are two occasions when it may be useful to make a target library visible to the backup application
on the host.
•
To confirm that replication is working correctly and check the integrity of the replicated backup
by doing a test restore
•
To perform manual tape copy jobs to any tape device on the network using the backup application
IMPORTANT:
You cannot change data on a Target library cartridge; you may only load it temporarily into a physical
tape device to read it.
Best practices for using this feature
WARNING!
If you do not follow these best practices, unstable and possibly damaging results may occur. Cartridges
may be marked as unusable or the backup application may attempt to write to target cartridges.
•
Ensure that no replication jobs to the selected target cartridge are in progress
•
Ideally check that no backup jobs to the mapped source cartridges are scheduled
•
Ensure that the backup application media server instance to be used is not within the same
cell/domain that can access the source cartridge
•
Import the data on the target cartridge into the backup application (this operation must be repeated
after each replicate operation to the cartridge)
•
Perform the desired operation on the cartridge, which may be:
•
Verify the cartridge using the backup application either using a verify command or by perform-
ing a restore
•
Copy the cartridge to a physical tape device connected to the media server
How is a target library made visible?
1.
Create the replication mapping, as normal. See
“
Running the replication wizard (NAS)
”
on page
87 or
“
Running the replication wizard (virtual tape devices)
”
on page 78, as appropriate.
2.
From the host that has access to the target library, on the
Virtual Tape Devices-Devices
page
select the target library in the Devices list.
3.
Click
Edit
.
4.
The Port defaults to
None
. Select an iSCSI or FC port, as appropriate.
5.
If you have selected an iSCSI port, enter the
iSCSI Initiator Name
.
Backup System user guide
23