Thank Ronny,
Here is  what I have:
I have 5 adv_lunx 1 to 5, and 2 tapes drives.
Staging policy 80% (high water)  -  65% (low water).
When one adv_lun reach 80% the staging to one tape drive start, when a second 
adv_lun reach 80% the second drive is used, when a third adv_lun reach 80%, I 
got an alert, saying "waiting for an tape or disk for Default Clone pool".
So, as the writing to tape is slower than the writing to disk, I got another 
drive reaching 80%, before one of the two drive are freed.



-----Message d'origine-----
De : Ronny Egner [mailto:RonnyEgner AT gmx DOT de] 
Envoyé : mercredi, 28. avril 2010 14:57
À : EMC NetWorker discussion; Hirter Marcel
Objet : Re: [Networker] staging parralelism


-------- Original-Nachricht --------
> Datum: Wed, 28 Apr 2010 03:01:40 -0400
> Von: Marcel Hirter <marcel.hirter AT NE DOT CH>
> An: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Betreff: [Networker] staging parralelism

> Hi ,
> I have a problem with staging to tape:
> I am staging adv_files to tape, and i only get one session per tape drive,
> Is it possible to have to or three adv_files staging to one tape ?
> If yes How ?

I did this with a tick:

Assume you have a large device /nsr/stage of 10 TB size.
Normally you configure one aft_device pointing to /nsr/stage thus getting a 
maximum of one staging process at a time.

The tick is to create withing /nsr/stage some directories:
/nsr/stage/disk1
/nsr/stage/disk2
/nsr/stage/disk3

And create three adv_devices (for /nsr/stage/disk1, /nsr/stage/disk2
and /nsr/stage/disk3).

>From the networker perspective you have three (6 with read only) devices 
>allowing a total of three staging processes in parallel. The disk space itself 
>is shared; but in most scenarios this dont matter.



Yours sincerely

Ronny Egner
-- 
Ronny Egner
RonnyEgner AT gmx DOT de

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