Monitoring Interval Granularity (iostat)

From: mkb <mkb125_at_yahoo.com>
Date: Fri, 15 Jul 2005 09:37:46 -0700 (PDT)
Message-ID: <20050715163746.13207.qmail@web32806.mail.mud.yahoo.com>

I hope this is not too off-topic, but here goes.

I have a linux system (RH AS 3.0) running Oracle 9iR2.  I'm monitoring disk usage on our RAID arrays by executing iostat and capturing the output to a file. Eventually, I'd like to plot the data out and see how the disks are performing.

I'm currently executing iostat every 5 minutes. How would one determine the interval granularity? I guess it would depend on a lot of things.

So for example, if it's very busy take an iostat snapshot every 5 or 10 minutes, say. If it's lightly loaded, take a snapshot every minute perhaps?

Any thoughts?

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mohammed                 

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http://www.freelists.org/webpage/oracle-l Received on Fri Jul 15 2005 - 11:39:45 CDT