Re: DBA_HIST_SYSMETRIC_HISTORY and metric I/O Megabytes per Second
- From: David Mann <dmann99@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Thu, 12 May 2011 22:33:25 -0400
>Hi all
>Anyone know if the metric I/O Megabytes per Second is valid in
>DBA_HIST_SYSMETRIC_HISTORY at version 11gR1?
>I am checking some I/O throguhput in a pretty loaded system (around
>1200MB/sec) and this metric shows some really low value like 6MB/sec!
How is the storage with your datafiles attached? I was looking for
similar information in OEM to match up with iostat numbers I was
observing on some NFS mounts... but at least in this case OEM only
'knew' about locally attached drives, not the NFS mounts where the
real action was happening. So I observed something similar, busy
database but OEM was only telling me about the light activity going on
locally (Oracle binaries and OS activity). Maybe we are seeing
something similar?
-Dave
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Dave Mann
www.brainio.us
www.ba6.us - Database Stuff - http://www.ba6.us/rss.xml
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