Re: HEADS UP: New ZFS in the tree.

From: Pawel Jakub Dawidek <pjd_at_FreeBSD.org>
Date: Sun, 23 Nov 2008 00:05:54 +0100
On Fri, Nov 21, 2008 at 05:25:18PM +0100, Pawel Jakub Dawidek wrote:
> On Wed, Nov 19, 2008 at 01:58:49PM +0200, Nikolay Denev wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> > 
> > 
> > On 19 Nov, 2008, at 11:48 , Nikolay Denev wrote:
> > >
> > >Well, it looks like that on -current and a 4G amd64 machine probably  
> > >there is no need
> > >to tune anything. Here are my defaults with everything vm and zfs  
> > >related in loader.conf commented :
> > >
> > >vm.kmem_size_max: 4509713203
> > >vfs.zfs.arc_max: 863907840
> > >
> > 
> > I was able to panic it again with "kmem_map too small" with these  
> > settings (defaults).
> > 
> > This are the bonnie++ arguments that i've used:
> > bonnie++  -d /tank -c 4 -r 4096 -x 9999999 -u 0:0
> 
> I wasn't able to panic my test machine running this command on i386
> machine with this in /boot/loader.conf:
> 
> vm.kmem_size=1073741824
> vm.kmem_size_max=1073741824
> 
> (1GB)
> 
> Although I now found that you were trying raidz2 and I had two two-way
> mirrors. I'm retrying now.

Ok, I tried RAIDZ2 on top of five disks - no panics.

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd_at_FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!

Received on Sat Nov 22 2008 - 22:06:00 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:39:37 UTC