Also keep in mind that you will need to update the node on the
TSM server so that it can use 6 mountpoints.
i.e. update node oraclenode maxnummp=6
Also in your rman script you must allocate 6 channels.
James Thompson
>From: Suad Musovich <[EMAIL PROTECTED]>
>Reply-To: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: How long will be backup task finished ?
>Date: Thu, 1 Mar 2001 21:59:56 +1300
>
>How often will this take (the cold backup)?
>
>You should have, a maximum, of 2 tape drives per SCSI connection(3
>controllers).
>Best to have 1 drive -> 1 SCSI controller.
>
>The major bottleneck is the ability of the database to pump, at least
>90MB(6 x 15)
>per second to the tape drives. There is also the consideration that the
>data
>might not steadily stream to the tape drives (LTO start/stop
>characteristics not
>that good).
>
>Using a diskpool as a buffer would need, at least, twice the performance
>characteristics of the tape stream rate above. It would ensure the tapes
>are
>streaming but it would need to be very fast.
>
>Don't forget to tell us a report how it ended up going.
>
>Cheers, Suad
>--
> Suad Musovich ([EMAIL PROTECTED])
> Unix Support, ITSS Operations
> University of Auckland
>
>On Wed, Feb 28, 2001 at 02:14:09PM +0200, Marc Layne wrote:
> > Considering that each drive can handle 15MB/sec natively (30 MB/sec
> > compressed) this relates to 54GB/hour per drive therefore 6 drives can
>do
> > 324GB/hour natively or 600GB in two hours native speed. Yes the drive
>can
> > handle it. The M80 also should be able to handle the load. The real
>question
> > is whether you get TDP for oracle to multistream across all four drives.
> > This sometimes depends on the database layout. If you have multiple
>smaller
> > tablespaces or 1 or 2 large tablespaces. Also how much memory does the
>M80
> > have?
> >
> > Thanks
> > Marc
> > _________________________________________________
> > Marc Layne
> > Product Manager - Services, Storage and Software Solutions
> > Faritec
> > Mobile: +27 82 4169086 email: [EMAIL PROTECTED]
> > <mailto:[EMAIL PROTECTED]>
> > Office: + 27 21 7629702 http://www.faritec.co.za/
> > _________________________________________________
> >
> >
> > -----Original Message-----
> > From: Shen Ou [mailto:[EMAIL PROTECTED]]
> > Sent: 28 February 2001 01:14
> > To: [EMAIL PROTECTED]
> > Subject: How long will be backup task finished ?
> >
> >
> > My customer has a Oracle 8.1.6 database on IBM AIX M80 (4 CPU) and its
>size
> > is 600G. He want to do a full backup using IBM LTO 3584 with 6 drivers.
>The
> > LTO 3584 attach with M80 using SCSI 2 Line. TSM server and client are on
> > M80 at the same time.He want to finish the backup task in 4 hours using
>TDP
> > for oracle,TSM 4.1 and LTO device.
> >
> > My question is can he finish the backup task in four hours ? If can't ,
> > what's the bottleneck ?
> >
> > Thanks .
> >
> > Shen Ou
> > Tivoli System
> > IBM China Shanghai Software Center
> >
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