Re: To reduce RMAN backup time
- From: Jared Still <jkstill@xxxxxxxxx>
- To: roger_xu@xxxxxxxxxxx
- Date: Mon, 20 Jun 2005 23:45:11 +0100
Roger,
There are so many possible variables here that the only
thing this means to anyone on the list is that your backups
sometimes take longer to run than other times.
I suggest you work with your storage admin to find out
where the bottleneck is.
Brandon had a good suggestion that you should follow up on.
Jared
On 6/16/05, Roger Xu <roger_xu@xxxxxxxxxxx> wrote:
>
> I just found out every time there is a backup piece takes 9 hours while
> others take less than an hour.
> What does this mean?
>
>
> -----Original Message-----
> From: Allen, Brandon [ mailto:Brandon.Allen@xxxxxxxxxxx]
> Sent: Thursday, June 16, 2005 3:22 PM
> To: Roger Xu; Oracle-L@Freelists. Org (E-mail)
> Subject: RE: To reduce RMAN backup time
>
>
> Roger,
>
> Could it be that the additional disk you are now writing to is slower than
> the other single disk you were writing to before?
>
> Are both backup pieces running in parallel with similar start and
> completion times, or are they running sequentially? I had this happen once
> due to the setting of filesperset or some other parameter (can't remember
> the details).
>
> Regards,
> Brandon
>
>
>
--
Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist
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