Date: Fri, 2 Dec 2011 11:37:28 -0600 (CST) From: Bob Friesenhahn <bfriesen@simple.dallas.tx.us> To: Matt Burke <mattblists@icritical.com> Cc: freebsd-fs@freebsd.org Subject: Re: Monitoring ZFS IO Message-ID: <alpine.GSO.2.01.1112021135550.2282@freddy.simplesystems.org> In-Reply-To: <4ED8EC9A.2080706@icritical.com> References: <4ED8D7A5.7090700@icritical.com> <op.v5u91pls8527sy@212-182-167-131.ip.telfort.nl> <4ED8EC9A.2080706@icritical.com>
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On Fri, 2 Dec 2011, Matt Burke wrote: > On 12/02/11 14:47, Ronald Klop wrote: >> while true; do gstat -b -I 1s; done > > Looks like I wasn't clear about what I'm after - sorry. > > I want to see how many bytes or KB have been read and written to a given > zpool since creation (as in the newer of uptime or zpool creation) on the > system. This implies that these statistics would need to be stored in the pool itself, which implies that the statistics need to be periodically written (e.g. in each transaction group) as a form of metadata. Bob -- Bob Friesenhahn bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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