FreeBSD 9.1-PRERELEASE #4 r240560: Sun
Sep 16 18:40:56 BST 2012
r...@kontrol.kode5.net:/usr/src/sys/amd64/compile/KONTROL amd64
I've been wondering about ZFS tuning and have read some articles, including the
FreeBSD handbook and wiki articles and also some posts in the FreeBSD forum
-a
FreeBSD kontrol.kode5.net 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #4 r240560: Sun
Sep 16 18:40:56 BST 2012
r...@kontrol.kode5.net:/usr/src/sys/amd64/compile/KONTROL amd64
I've been wondering about ZFS tuning and have read some articles, including the
FreeBSD handbook and wiki articles and also
[ Volodymyr Kostyrko wrote on Mon 17.Sep'12 at 14:25:09 +0300 ]
Handbook is old and cripsy about that all thing yet provides a useful
link to http://wiki.freebsd.org/ZFSTuningGuide
- you don't need kmem_size/arc tuning on amd64 generally;
- zfs.zfs.prefetch_disable=0 will cause
On Monday 17 September 2012 13:20:14 Jamie Paul Griffin wrote:
I set zfs.zfs.prefetch_disable=0 because some dmesg line suggested/implied
it would benefit. I don't recall the exact output now.
If you look in /var/run/dmesg.boot you should find the message saying ZFS
NOTICE: Prefetch is
[ Mike Clarke wrote on Mon 17.Sep'12 at 18:19:18 +0100 ]
On Monday 17 September 2012 13:20:14 Jamie Paul Griffin wrote:
I set zfs.zfs.prefetch_disable=0 because some dmesg line suggested/implied
it would benefit. I don't recall the exact output now.
If you look in /var/run/dmesg.boot
Most of http://wiki.freebsd.org/ZFSTuningGuide
is for i386 and amd64.
I'm using zfs on ia64 r238540.
Not sure how much of the advice given apply in my case.
I have:
# grep ZFS /var/run/dmesg.boot
ZFS filesystem version: 5
ZFS storage pool version: features support (5000)
# zpool upgrade -v |tail
Op 29-6-2011 23:45, Gary Gatten schreef:
2 Mega Bytes? Surely that's a typo, but is it 200MB? 2GB?
Those that know ZFS will want to know the primary use / load of this system.
It was a typo for sure. Should be 2GB
It will be a server, so no X
FAMP
Mailserver for 10 users (imap)
Nameserver
I would welcome some advise on zfs tuning. Coming from solaris I need
this info.
The system only has 2MB of ram. No problems running solaris11 in it so
far so FreeBSD should do just fine too, but who can suggest some
settings for:
vm.kmem_size
vm.kmem_size_max
vfs.zfs.arc_max
: Wednesday, June 29, 2011 4:42 PM
To: freebsd-questions@freebsd.org
Subject: zfs tuning
I would welcome some advise on zfs tuning. Coming from solaris I need
this info.
The system only has 2MB of ram. No problems running solaris11 in it so
far so FreeBSD should do just fine too, but who can suggest
