Date: Thu, 22 Jun 2006 17:25:10 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Matt Ruzicka <matt@frii.com> Cc: freebsd-questions@freebsd.org Subject: Re: Tracking if disk is busy Message-ID: <20060622222509.GA95588@dan.emsphone.com> In-Reply-To: <Pine.BSF.4.64.0606221603390.59395@elara.frii.com> References: <Pine.BSF.4.64.0606221603390.59395@elara.frii.com>
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In the last episode (Jun 22), Matt Ruzicka said: > We've got a couple servers that appear to have particularly busy > disks and I was trying to determine if there is a way to more easily > poll this data for tracking. > > I'm not sure if this is one of those can't see the forest for the > trees issues or not, but the only means that I am familiar with to > see the percentage of time the disk is busy is to run 'systat > -vmstat'. I was hoping for something more concise that I could run > periodically and maybe even graph (realizing that watching this might > well distort the results). > > It appears that iostat on Solaris gives this information, but I can't > seem to mimic this functionality with FreeBSD. iostat on -current and 6-stable has a Solaris-style -x mode with a percent-busy column. -- Dan Nelson dnelson@allantgroup.com
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