ADSM-L

Re: Parallel sessions with backint

1998-12-01 12:38:15
Subject: Re: Parallel sessions with backint
From: Jeff Renicker <renicker AT US.IBM DOT COM>
Date: Tue, 1 Dec 1998 12:38:15 -0500
Hi Horst,
I was wondering if you are using any sort of compression to achieve your
30-35 GB/hour datarate.

Thanks.

Jeff Renicker



> Hi Horst,
> I'm very interested by your datarate: what kind of network are you using
to
> get this performances.
> How many processors do you have in your machine?
> Does your datarate increased upgrading backint 2.3?
>
>
>My environment is:
>AIX 4.1.5 in SP2
>ADSM Server 3.1.1.5
>ADSM Client   2.1.10.7
>
>Best Regards
>Georges
>
>
>
>
>
>
>Horst Groh <Horst.Groh AT hager DOT de> sur 30.11.98 12:38:58
>
>Pour :    ADSM-L AT VM.MARIST DOT EDU
>cc :
>Objet :   Re: Parallel sessions with backint
>
>
>
>
>Hallo Georges,
>
>the parameter for backinit are:
>
>cat init<sid>.utl
>
>MAX_SESSIONS: xxx   ==> Number of physikal drive
>MULTIPLEXING: xxx    ==> Number of Session per drive
>
>I've two 3590, backint 2.3, aix4.1.5, sapdba 3.1F, MAX_SESSIONS=2
>MULTIPLEXING=4
>the datarate is about 30-35 GB/hour per Drive
>
>
>Roig Georges schrieb:
>
> Hi,
>
> I'm working to increase the speed of my SAP backup, and for the moment
the
> performance I realized is 20GB/h direct to tape with
> 1 parallel session.
> I 'm trying to run backint witn 2 parallel sessions direct to tape, but
> only one session is backed up by the tape, the other one is in MediaW
> status.
> When the first session is finish, the second session continue, and the
same
> for the third session until the second session is finish etc....
>
> Does anyone has an idea why the both sessions doesn't really running in
> parallel ?
>
> Georges
>
> (BACKINT 2.2)
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