Date: Mon, 22 Jan 2018 11:24:05 +0100 From: Jan Bramkamp <crest@rlwinm.de> To: freebsd-fs@freebsd.org Subject: Re: ZFS High-Availability NAS Message-ID: <cf9a7f9f-11ee-f8ff-6a25-e14c9adde3c8@rlwinm.de> In-Reply-To: <20180119151919.GF507@mordor.lan> References: <20180119151919.GF507@mordor.lan>
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On 19.01.18 16:19, Julien Cigar wrote: > Hello, > > I'm wondering if someone has already put in production something > similar to https://github.com/ewwhite/zfs-ha/wiki (with two HBAs and > two disk shelves in two chains) with ZFS, gmultipath, and NFS on top ? I tried to build something similar, but ran into problems with gmultipath. There are situtations in which gmultipath retries an I/O request ad infinitum, because it can't tell the difference between temporary errors (e.g. a link failure) and permanent errors (e.g. a head crash). It just sees that the struct bio contains an error and retries reactivating failed links if it runs out of active links. Other than that it it worked ;-).
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