Hi All

I have sort of the same problem. But my drives are connected through a SAN.
So small flies in LANFree Backups are an issue. Is there a way to avoid this
interrupted stream issue? It sounds like a terrible waste to have several
LTO-1s with fibre attachments and HBAs and what nots to have to always rely
on disk pools.


Thanks

Jorge Salinas


----- Original Message -----
From: "Lloyd Dieter" <dieter AT SNRGY DOT COM>
To: <ADSM-L AT VM.MARIST DOT EDU>
Sent: Friday, June 13, 2003 9:57 AM
Subject: Re: TSM LTO 3580 Performance


> Also...an Adaptec 2940 is an older SCSI-2 card...10MB/sec, isn't it?
>
> Maybe that's an issue....
>
> -Lloyd
>
>
> On Thu, 12 Jun 2003 08:11:51 -0500
> Colby Morgan <cmorgan AT DATA-TRONICS DOT COM> wrote:
>
> > We in the process of moving to an IBM 3580 external LTO drive for manual
> > offsite vaulting of primary storage pools.  I have read several older
> > reports on http://msgs.adsm.org about poor performance with TSM, LTO and
> > small files.  We are experiencing the same behavior and I was just
> > curious if anybody has ran into this lately.  We see about 10-15GB/hour
> > with small files and 42-57GB/hour on larger files.
> >
> > We are running TSM 5.1.6.5 on Win2k SP3.  The drive is an external IBM
> > 3580 and is the only device hooked to an Adaptec 2940 SCSI controller.
> > We are also running v5.0.5.4 of the IBM 3580 drivers.
> >
> > I maxed out the following server options (which helped):
> > MoveBatchSize     1000
> > TxnGroupMax             256
> >
> > I also set the drive parameters via ntutil as described in this Redbook
> > (which also helped):
> > http://www.redbooks.ibm.com/redpieces/pdfs/sg246268.pdf
> >
> > Anybody else ran into these problems?
> >
> >
> > Thanks,
> >
> > Colby
> >
>
>
> --
> -----------------------------------------------------------------
>     Lloyd Dieter        -       Senior Technology Consultant
>                      Registered Linux User 285528
>    Synergy, Inc.   http://www.synergyinc.cc   ldieter AT snrgy DOT com
>              Main:585-389-1260    fax:585-389-1267
>                         SMS:5853292627 AT vtext DOT com
> -----------------------------------------------------------------