I typically have a directory created for each policy to keep state.
Each stream creates a file in that directory when it starts, and
renames it when it completes. The bpend script looks for these files
and when there are none left, the application is restarted. I used to
use a counter file, but race conditions became an issue.

The scripts use the STREAM_COUNT and STREAM_NUMBER variables to
calculate if all streams are finished.

You still have to worry about restarts in case a stream fails, and
it's difficult to determine which streams belong to which run of a
policy. It's not a trivial problem.

-Craig

On Tue, 17 Aug 2004 11:03:23 -0400, Stump, Robert (Contractor) (DRMS)
<robert.stump AT dla DOT mil> wrote:
> I haven't used this but perhaps someone in this list can verify/explain the
> use of:
> ...from admin guide..
> In addition to the above, the following environment variables can be used
> for the support
> of multiple data streams:
> STREAM_NUMBER indicates the stream number. The first stream started from a
> policy,
> client, and schedule will be 1. A value of 0, indicates that multiple data
> streams is not
> enabled.
> STREAM_COUNT specifies the total number of streams to be generated from this
> policy,
> client, and schedule.
> STREAM_PID is the pid (process ID) number of bpbkar.
> 
> 
> 
> 
> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Browne, 
> Alec
> Sent: Tuesday, August 17, 2004 10:47 AM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [Veritas-bu] stop & start anti-virus from a script?
> 
> We back up several network drives (netapp cifs shares) through one windows
> client.  I would like to disable anti-virus on that client during backups to
> increase the speed.  I tried setting it to only scan inbound files but we
> have some automatic policies that turn the outbound scanning back on every 5
> min.
> 
> I would like to use bpstart_notify and bpend_notify to do this, but there
> are several streams being backed up concurrently on the same box.
> I can't put an end_notify on each stream, since the anti-virus would be
> turned back on once the first stream ends, regardless of how many other
> backup streams are running.  Has anyone found a workaround?  Is there a way
> to check if there are current or queued backups for that server in the
> bpend_notify, so that it only turns anti-virus off after the last job
> completes?
> 
> Thanks
> Alec Browne
> 
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