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Determine % of write IO from SAR

 
al somers
Occasional Contributor

тАО02-02-2009 09:47 AM

тАО02-02-2009 09:47 AM

Determine % of write IO from SAR

Given "sar -d -b interval count" output, how can I determine the "Write" rate?

Or can't I??

I was trying to use the bwrite or lwrite as a percentage of BLKS/sec, but not sure that is accurate... Just trying to gauge write rate per second for remote replication purposes.
Never let a computer win.
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Sani
Frequent Advisor

тАО02-06-2009 03:25 AM

тАО02-06-2009 03:25 AM

Re: Determine % of write IO from SAR

What is ur OS version?
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likid0
Honored Contributor

тАО02-06-2009 05:43 AM

тАО02-06-2009 05:43 AM

Re: Determine % of write IO from SAR

Sar is not the mos acurate, tool out there, if you have the posibility use glance or perfomance agen.

If u are stuck with sar, the actual writes to disk are in the bwrit/s column.

lwrit/s don't go all the way to disk, they are resolved by cache,etc.
Windows?, no thanks
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