Date: Tue, 18 Sep 2012 07:45:31 -0500 From: Mark Felder <feld@feld.me> To: FreeBSD FS <freebsd-fs@freebsd.org>, John <jwd@freebsd.org> Subject: Re: XFS/istgt backed 8TB xfs filesystem configuration? Message-ID: <op.wkt0d5k034t2sn@tech304> In-Reply-To: <20120918124214.GA79439@FreeBSD.org> References: <20120918010812.GA71005@FreeBSD.org> <op.wktwglik34t2sn@tech304> <20120918124214.GA79439@FreeBSD.org>
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On Tue, 18 Sep 2012 07:42:14 -0500, John <jwd@freebsd.org> wrote: > > Have you found any blocksizes, cache sizes, etc, that seem optimal? > I'm providing iSCSI for XEN and VMWare servers and currently have no optimal tunings. ZFS's variable block size seems to handle the load just fine, and I have plenty of SSDs doing work for me. Just make sure you have carefully calculated the number of Connections and Sessions for istgt -- your multipath and number of LUNs being shared will affect these numbers.
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