Veritas-bu

[Veritas-bu] rman channels

2004-05-14 18:21:41
Subject: [Veritas-bu] rman channels
From: perf AT peppas DOT gr (Jim Peppas)
Date: Sat, 15 May 2004 01:21:41 +0300
Oracle might  recommend, but I  have seen it in action.
3-4 drives with 5-10 channels for each drive. Got up to 30Mb/sec

JP 



-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Dave 
Cecchino
Sent: Friday, May 14, 2004 5:32 PM
To: smpt AT freemail DOT gr
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] rman channels


I have 4 tape drives.....Oracle recommends not to exceed the number of
channels more then the number of your drives.

-dave




X

On Fri, 14 May 2004 smpt AT freemail DOT gr wrote:

>
> Try to use more channels. I use 10 to 30.
> >
>
>  Quick question,
> >
> > I have a netbackup client that is configured to use 4 rman channels 
> > on a sdlt tape drive , normally the filesystem backup runs about 
> > 27-30 meg a/sec however, 4 rman channels  only runs 4/mb sec , what 
> > gives?
> >
> > I have setup the tape is slave true / and max files per set on the 
> > rman rcv file, and some other tuning parameters, but can't seem to 
> > get the channels to run faster than 4 /mb sec .
> >
> >
> >
> >
> > X
> >
> > _______________________________________________
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>
>
>
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