Date: Wed, 5 May 2010 08:19:22 -0700 From: Freddie Cash <fjwcash@gmail.com> To: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: Freebsd 8.0 kmem map too small Message-ID: <q2vb269bc571005050819nde819098vfd3306170639a9c9@mail.gmail.com> In-Reply-To: <4BE110E3.8040902@zirakzigil.org> References: <4BDEA86E.3050109@zirakzigil.org> <20100503110100.GA93137@icarus.home.lan> <4BDEC106.3040807@zirakzigil.org> <4BE110E3.8040902@zirakzigil.org>
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On Tue, May 4, 2010 at 11:32 PM, Giulio Ferro <auryn@zirakzigil.org> wrote: > Giulio Ferro wrote: > >> Thanks, I'll try these settings. >> >> I'll keep you posted. >> > > Nope, it's happened again... Now I've tried to rise vm.kmem_size to 6G... > I'm really astounded at how unstable zfs is, it's causing me a lot of > problem. > Why isn't it stated in the handbook that zfs isn't up to production yet? > As with everything related to computers, it all depends on your uses. We've been using FreeBSD+ZFS since it first hit 7.0 with very few problems. The first month of use required a lot of tuning and testing, though, to find the correct kmem, arc, etc settings for our workload. Once we found them, though, things have been rockstable. We rsync 120 remote Linux and FreeBSD servers to our 24-drive, 18 TB backup server, every night. And then rsync that to another similar server. And share out a couple of filesytems via NFS and another couple via Samba. Expect to spend a week or two to tune ZFS, and to rebuild the pool at least once to find the optimal vdev layout. But once that's done, expect it to be solid. -- Freddie Cash fjwcash@gmail.com
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