On May 1, 2009, at 1:53 PM, Pete French wrote:
...
The tuning isn't there to improve performance, it's there to prevent
the box going titus due to a panic when the ARC gets too big, and
you are missing the mian one, which is to limit the size of the ARC.
On recent versions of BSD (and you are running 7.2, so thats fine)
then
the defaults for kmem size are fine, but you still need something
like this:
vfs.zfs.arc_max="256M"
In there to stop the ARC growing. thats the only tuning I have on
my 4 gig machine, which takes a steady stream of data and is used
for taking backup snapshots. ZFS is excellent, and for me is perfectly
stable, to the point where I am starting to roll it out to production
machines, with the above tuning.
I agree, although I'm using 384 instead of 256. My systems have been
running in production for almost a year now w/o any ZFS issues.
--
Louis Kowolowski lou...@cryptomonkeys.org
Cryptomonkeys: http://www.cryptomonkeys.org/~louisk
Making life more interesting for people since 1977
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