System Administrator’s Guide U42252-J-Z915-1-76
NSR-ORA and NetApp Configuring NSR-ORA
However if you require irregular snapshot backups (e.g. only during the
working hours) then you must create different groups depending the
different snapshot backups.
●One group for the tape backup (daily of every n days).
There are some basic rules to follow for the groups controlling the backup
cycle:
Be careful to provide a sufficient delay between the tape backup and
the next pure snapshot backup. If the snapshot backups is stated
while the tape backup is still running, the snapshot backup is skipped
(i.e. the snapshot backup will not be performed).
On the other hand if a tape backup is started while NSR-ORA is still
running a snapshot backup then the tape backup will be paused and
resumed again after the snapshot backup is finished.
If a tape backup cannot be finished because of missing tapes, no
further snapshot backup will be performed. So take care to provide a
sufficient amount of tapes for the tape backup. Please take note of all
messages from NetWorker informing you that a new tape is needed
for (the completion of) the backup and react as soon as possible
allowing NetWorker to perform all scheduled backups (tape and
snapshot backups) as planned.
For the groups the following additional settings are necessary:
●Interval attribute
The Interval attribute should be set to a value between 1 and 24 hours.
Thus you can perform a snapshot backup regularily, e.g. every 4 hours.
If NetWorker should only perform a few backups per day, then for every
start time a separate group can be created. In this case the Interval
parameter is not used. Scheduling more backups during a day the
Interval parameter saves configuration effort since in this case you may
use only two groups.
The Interval and Level (see below) attributes are so called hidden
attributes. For additional information see the Fujitsu Siemens
Computers manual NetWorker V6.0: Installing, Configuring and
Operating.
●Level attribute
This attribute allows setting the backup level of a group to a fixed value.
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