Re: Spurious reboot in 8.1-RELEASE when reading from ZFS pool with > 9 disks

2010-10-20 Thread Sean Thomas Caron
Hi Jeremy, Thanks for the very helpful response! I added all debugging options that you specified to my kernel and rebuilt; then set the kernel parameters as you mention (I was being a bit lazy earlier when I called them sysctls; I always tuned them in loader.conf; just that you can view t

Re: Spurious reboot in 8.1-RELEASE when reading from ZFS pool with > 9 disks

2010-10-20 Thread Jeremy Chadwick
On Wed, Oct 20, 2010 at 11:27:38AM -0400, Sean Thomas Caron wrote: > I've been playing with ZFS in 8.1-RELEASE (amd64) on a Sun Fire > X4500 with 16 GB RAM and in general it seems to work well when used > as recommended. > > BUT... > > In spite of the suggestion of Sun and FreeBSD developers to t

Re: Spurious reboot in 8.1-RELEASE when reading from ZFS pool with > 9 disks

2010-10-20 Thread Boris Kochergin
Ahoy. I just thought I'd add a data point to the mix. I have an 11-disk v13 pool comprised of 400-GB disks on an 8.1 amd64 system and the machine behaves just fine with it: # zpool status pool: archive state: ONLINE status: The pool is formatted using an older on-disk format. The pool can

RE: Spurious reboot in 8.1-RELEASE when reading from ZFS pool with > 9 disks

2010-10-20 Thread Sean Thomas Caron
Hi Lawrence, Interesting; have you tried this for raidz2 as well? I just created a raidz2 pool with 5 disks and then added another 5 disk raidz2 to it, so, total of 10 disks in the pool (though this is ultimately a losing strategy unless the number of disks is >> 9 because two drives are l