hello Jeff,

i've used the backint standard compress ( null block compression)
adsm compress is not used
the compression ratio for backint is 1,4 to 1,0.

Greetings Horst

Jeff Renicker schrieb:

> 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)