Date: Fri, 23 Jun 2006 14:43:47 +0300 From: Nikos Vassiliadis <nvass@teledomenet.gr> To: freebsd-questions@freebsd.org Cc: Matt Ruzicka <matt@frii.com> Subject: Re: Tracking if disk is busy Message-ID: <200606231443.47994.nvass@teledomenet.gr> 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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On Friday 23 June 2006 01:12, Matt Ruzicka wrote: > 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. > > Are there other ways in FreeBSD to pull the percentage of time the disk is > busy? > gstat gives percentage load per (device|slice|partition) which is what I think you need. but it's written for interactive use, it issues commands to the terminal so you cannot have its output to file...
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