Date: Thu, 29 Oct 2015 15:26:57 +1300 From: Philip Murray <pmurray@nevada.net.nz> To: "Michael W. Lucas" <mwlucas@michaelwlucas.com> Cc: fs@freebsd.org Subject: Re: iSCSI/ZFS strangeness Message-ID: <B09FE8F0-F463-44C9-896C-CA55305113CE@nevada.net.nz> In-Reply-To: <20151029015721.GA95057@mail.michaelwlucas.com> References: <20151029015721.GA95057@mail.michaelwlucas.com>
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> On 29/10/2015, at 2:57 PM, Michael W. Lucas = <mwlucas@michaelwlucas.com> wrote: >=20 > Hi, >=20 > I'm experimenting with iSCSI HA with FreeBSD 10.2 amd64. I know people > do this sort of thing, but I can't figure out what I'm missing. (Most > of the tutorials cover HAST instead). I suspect the real problem is > "Lucas doesn't know the right search terms." >=20 > The goal is to make an iSCSI-based ZFS pool that's available to two > separate hosts, and remains available even if one of the iSCSI servers > fails. Instead, the pool hangs when either of the iSCSI servers goes > down. I=E2=80=99m no expert and have never used iSCSI and FreeBSD before, but = I think you might=20 want to look at the kern.iscsi.fail_on_disconnection sysctl. man 4 iscsi That means the devices will fail instead of hang, and ZFS might decide = to mark those=20 devices as faulted instead of waiting for them to respond. Cheers Phil=
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