Cybernetics miSAN-V6, Руководство оператора

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85 Operating the Web Control Panel
Cybernetics UM-MV-86-B1-0801
select one of the actions, right-click the row for the desired physical tape/virtual
tape assignment, and choose the “Set action” menu option.
Do nothing to VT – Choose this if the virtual tape already contains a backup you
want to offload to the physical tape. This is useful in the following situations:
1) You performed a backup to virtual tape before associating the virtual tape with a
physical tape for offloading.
2) You had previously associated the virtual tape with a different physical tape that had
an error while offloading (e.g. a bad tape). You can choose this option to associate the
virtual tape with a different physical tape.
Erase VT – Choose this if the virtual tape contains data you no longer need, for
example if the virtual tape contains an older backup that has already been off-
loaded to physical tape. Your software will see the virtual tape as a new blank
tape.
Copy PT header -> VT – Choose this if the virtual tape contains data which you
no longer need, and the physical tape contains a backup that you want to purge
from your software’s database. The miSAN-V-Series will create a job to copy the
data header from the physical tape to the virtual tape. When your software sees
the data header on the virtual tape, it should purge the old backup from its data-
base when overwriting the virtual tape with a new backup.
Copy PT -> VT – Choose this if the virtual tape contains data you no longer need,
and the physical tape contains a backup you want to either restore or append.
An alternative way to purge the record of an old backup from your backup soft-
ware’s database is to use “Host access” to have your software erase the physical
tape (See
“Host access” on page 81 ). Or, you can delete the old database entry
manually through your software.
• Wait for backup
While “Wait for backup” is set, any job to offload the virtual tape to physical tape
will wait for the host to do a backup before offloading. The miSAN-V-Series will
clear the “Wait for backup” flag when the host does a backup.
Select the “Wait for backup” option if the virtual tape does not contain any data
that you want to offload to the physical tape (e.g., if the virtual tape was already
offloaded successfully). Deselect the “Wait for backup” option if the virtual tape
does contain data from a backup that you want to offload. “Wait for backup” is
always selected if you choose “Copy PT header -> VT” or “Copy PT -> VT”. “Wait
Note
“Host access” is often an easier method for restoring from a physical
tape.