Date: Thu, 08 Jan 2009 13:40:17 +1100 From: Andrew Snow <andrew@modulus.org> To: Angelo <nglrossi@gmail.com>, freebsd-scsi@freebsd.org Subject: Re: iscsi client hangs performing I/O on a dead target Message-ID: <49656791.1000809@modulus.org> In-Reply-To: <6c1e076a0901070247l7c006efajda8fddee84c337a@mail.gmail.com> References: <E1LKUmz-000O18-Kp@kabab.cs.huji.ac.il> <6c1e076a0901070247l7c006efajda8fddee84c337a@mail.gmail.com>
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> I was expecting that a failure on one of the disks (network down, target > machine down) would be eventually detected and the raid turned to degraded > but still usable. > What happens now to me is that the whole raid device gets unusable for all > the time the target is down. If you're using gmirror, you might want to experiment with this setting: kern.geom.mirror.timeout Set it to something reasonably low like 10 seconds, and it will ignore an iSCSI device that is not responding more rapidly.
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