Date: Wed, 19 Nov 2008 11:10:43 -0800 From: Rudy <crapsh@monkeybrains.net> To: Bartosz Stec <admin@kkip.pl> Cc: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: (actually ZFS discussion) Re: Will XFS be adopted Message-ID: <492464B3.4050306@monkeybrains.net> In-Reply-To: <4923E977.8030107@kkip.pl> References: <20081109174303.GA5146@ourbrains.org> <20081109184349.GG51239@server.vk2pj.dyndns.org> <4920D879.3070806@jrv.org> <20081117050441.GA16855@ourbrains.org> <20081118175210.GA3753@hyperion.scode.org> <20081119001742.GA21835@ourbrains.org> <49235D86.4050106@modulus.org> <86bpwcp1d8.fsf@ds4.des.no> <4923D460.5020900@kkip.pl> <b41c75520811190106w7f951760m95c12358f1008c5b@mail.gmail.com> <4923E977.8030107@kkip.pl>
next in thread | previous in thread | raw e-mail | index | archive | help
> Well it's not simple indeed. I use ZFS on my home (not critical) box > (RAIDZ1). After 4 weeks uptime with varied workload I assumed it's > stable. Unfortunately ZFS crashed next week ;) Tune your system for ZFS and the crashes will go away. Read this: http://wiki.freebsd.org/ZFSTuningGuide A running system with ZFS caches a lot of disk access (making it really fast for some applications). WHen you run the 'top' command, you will see that WIRED amount of ram is higher than a system without ZFS. Mem: 161M Active, 114M Inact, 639M Wired, 1084K Cache, 199M Buf, 1086M Free What applications will benefit from ZFS? Read this article on MySQL and ZFS: http://dev.mysql.com/tech-resources/articles/mysql-zfs.html It proposed that you allocate less ram to MySQL in your my.cnf and let ZFS take care of caching. Here are my loader.conf settings. zfs_load="YES" # ZFS tunings vm.kmem_size="800M" vm.kmem_size_max="800M" # http://wiki.freebsd.org/ZFSTuningGuide vfs.zfs.arc_max="160M" vfs.zfs.vdev.cache.size="5M" # and I have my root on zfs... vfs.root.mountfrom="zfs:tank/root" - Rudy --------------------------------- ** monkeybrains.net colocation ** ---------------------------------
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?492464B3.4050306>