Date: Thu, 28 Apr 2011 23:33:22 +0930 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: freebsd-stable List <freebsd-stable@freebsd.org> Subject: ZFS vs OSX Time Machine Message-ID: <537A8F4F-A302-40F9-92DF-403388D99B4B@gsoft.com.au>
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Does anyone else use ZFS to store TM backups? I find that whenever my laptop (over wifi!) starts a TM the ZFS machine = it's backing up to grinds to a halt.. Other systems streaming stuff over = NFS from it also tend to stall.. I presume that TM is doing something which causes ZFS some issues but = I'm not sure how to find out what the real problem is let alone how to = fix it.. I am running FreeBSD midget.dons.net.au 8.2-PRERELEASE FreeBSD = 8.2-PRERELEASE #8 r217094M: Sat Jan 8 11:15:07 CST 2011 = darius@midget.dons.net.au:/usr/obj/usr/src/sys/MIDGET amd64 It is a 5 disk RAIDZ1 with 1.29Tb free using WD10EADS drives. I don't see any SMART errors or ZFS warnings. I have the following ZFS related tunables vfs.zfs.arc_max=3D"3072M" vfs.zfs.prefetch_disable=3D"1"=20 vfs.zfs.txg.timeout=3D5 vfs.zfs.cache_flush_disable=3D1 Any help appreciated, thanks :) -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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