Re: Database performance during hot backup
From: Jared Still <jkstill_at_gmail.com>
Date: Fri, 30 Mar 2012 11:36:24 -0700
Message-ID: <CAORjz=PvdPcLJ9pLOSzWnDB+YfPB7hqPCNnnz0fAc8DfRmwSxA_at_mail.gmail.com>
On Fri, Mar 30, 2012 at 8:20 AM, Martin Berger <martin.a.berger_at_gmail.com>wrote:
> At least with RMAN you have all IOs instrumented and can see/count
> them within the instance (statspack/ASH/AWR/, v$sysstat, v$session,
> ...)
>
Date: Fri, 30 Mar 2012 11:36:24 -0700
Message-ID: <CAORjz=PvdPcLJ9pLOSzWnDB+YfPB7hqPCNnnz0fAc8DfRmwSxA_at_mail.gmail.com>
On Fri, Mar 30, 2012 at 8:20 AM, Martin Berger <martin.a.berger_at_gmail.com>wrote:
> At least with RMAN you have all IOs instrumented and can see/count
> them within the instance (statspack/ASH/AWR/, v$sysstat, v$session,
> ...)
>
+1
please see http://jaredstill.com/downloads/Making-RMAN-Perform.zip <http://jaredstill.com/downloads/Making-RMAN-Perform.zip>
There are some pages in that presentation showing performance degradation with various RMAN scenarios.
Jared
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