Date: Thu, 31 Jul 2008 17:08:19 +0200 From: "Claus Guttesen" <kometen@gmail.com> To: "Pawel Jakub Dawidek" <pjd@freebsd.org> Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org Subject: Re: ZFS patches. Message-ID: <b41c75520807310808jbc5c4f1v968255c4695a245d@mail.gmail.com> In-Reply-To: <20080727125413.GG1345@garage.freebsd.pl> References: <20080727125413.GG1345@garage.freebsd.pl>
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On Sun, Jul 27, 2008 at 2:54 PM, Pawel Jakub Dawidek <pjd@freebsd.org> wrote: > Hi. > > http://people.freebsd.org/~pjd/patches/zfs_20080727.patch.bz2 > > The patch above contains the most recent ZFS version that could be found > in OpenSolaris as of today. Apart for large amount of new functionality, > I belive there are many stability (and also performance) improvements > compared to the version from the base system. > > Check out OpenSolaris website to find out the differences between base > system version and patch version. > > Please test, test, test. If I get enough positive feedback, I may be > able to squeeze it into 7.1-RELEASE, but this might be hard. > > If you have any questions, please use mailing lists > (freebsd-fs@FreeBSD.org would be the best). I applied your patch to a current as of July the 31'st. I had to remove /usr/src and perform a clean csup and remove the two empty files as mentioned in this thread. I have a areca arc-1680 sas-card and an external sas-cabinet with 16 sas-drives each 1 TB (931 binary GB). They have been setup in three raidz-partitions with five disks each in one zpool and one spare. There does seem to be a speed-improvement. I nfs-mounted a partition from solaris 9 on sparc and is copying approx.400 GB using rsync. I saw write of 429 MB/s. The spikes occured every 10 secs. to begin with. After some minutes I get writes almost every sec. (watching zpool iostat 1). The limit is clearly the network-connection between the two hosts. I'll do some internal copying later. It's to early to say whether zfs is stable (enough) allthough I haven't been able to make it halt unless I removed a disk. This was with version 6. I'll remove a disk tomorrow and see how it goes. -- regards Claus When lenity and cruelty play for a kingdom, the gentlest gamester is the soonest winner. Shakespeare
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