Date: Wed, 7 Feb 2024 16:12:21 +0200 From: Oleksandr Kryvulia <shuriku@shurik.kiev.ua> To: freebsd-fs@freebsd.org Subject: Re: ZFS on a shared iSCSI Message-ID: <761c8030-5de9-4114-9313-22ec860fb257@shurik.kiev.ua> In-Reply-To: <nloyl5bv5xlh4x5sygl3ekibe7piy4tggidl4vzxczvypuayis@ea2qj3ylvb2s> References: <CAGqQmRPssfrb9S6r0H4SaQLEfOTp5Qx7-HSvHtYkxMnpeqKWjQ@mail.gmail.com> <nloyl5bv5xlh4x5sygl3ekibe7piy4tggidl4vzxczvypuayis@ea2qj3ylvb2s>
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07.02.24 14:24, Julien Cigar: > On Wed, Feb 07, 2024 at 11:55:54AM +0100, Andrea Brancatelli wrote: >> Hello guys, I'm not 100% this is the correct list to ask this question, if >> not please feel free to point me in the right direction. >> >> I was wondering what could be the best recipe to have an HA cluster sharing >> an external ZFS storage. >> >> Let's say I have two servers running a bunch of Jails and, thus, I'd like >> to use ZFS as the underlying storage layer and I have an external (iSCSI) >> storage connected. >> >> Would it be "easily possible" to have some (2?) iSCSI LUN exposed to both >> servers and then activate the pool on one or the other server? >> >> The idea would be to reactivate the filesystem from server A on server B if >> the server A fails. >> >> Would it be "easier" to replicate everything and zfs send datas back and >> forth? Clearly that would mean doubling datas and havin a scheduled replica >> with a possible delay in data replication, so I'd like to avoid this. >> >> Any thoughts? > I asked something similar a few years ago, the whole thread may be an interesting > read: https://lists.freebsd.org/pipermail/freebsd-fs/2016-June/023456.html > > Just to say that I tried a lot of different things, and came up to the > conclusion that for critical production usage all those things are > fragile and with hidden dragons everywhere. > > I love FreeBSD (I use it exclusively everywhere, also at work), but > there aren't any supported open-source solution for something like an > "highly available ZFS cluster". On the commercial side there is RSF-1 > and beasts like Pure storage ($$$) but ... > > I would really like to see CEPH ported to FreeBSD, that would be > extremely useful What about www/minio? Does anyone have any experience of production use? We have a lot of bhyve vm's backened by local zfs storage, but I am interesting in some kind of hyperconverged solution.
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