Re: [zfs-discuss] What causes slow performance under load?

2009-05-12 Thread Rince
On Tue, Apr 21, 2009 at 3:20 PM, Joerg Schilling wrote: > The license combination used by cdrtools was verified by several lawywers > including Sun Legal and Eben Moglen and no lawyer did find a problem. [citation needed] https://lists.ubuntu.com/archives/ubuntu-news-team/2009-February/000413.ht

[zfs-discuss] With RAID-Z2 under load, machine stops responding to local or remote login

2009-05-12 Thread Rince
Hi world, I have a 10-disk RAID-Z2 system with 4 GB of DDR2 RAM and a 3 GHz Core 2 Duo. It's exporting ~280 filesystems over NFS to about half a dozen machines. Under some loads (in particular, any attempts to rsync between another machine and this one over SSH), the machine's load average someti

[zfs-discuss] Unexpectedly poor 10-disk RAID-Z2 performance?

2009-04-22 Thread Rince
Hail, caesar. I've got a 10-disk RAID-Z2 backed by the 1.5 TB Seagate drives everyone's so fond of. They've all received a firmware upgrade (the sane one, not the one that caused your drives to brick if the internal event log hit the wrong number on boot). They're attached to an ARC-1280ML, a reas

Re: [zfs-discuss] ZFS Panic

2009-04-09 Thread Rince
On Fri, Apr 10, 2009 at 12:43 AM, Andre van Eyssen wrote: > On Fri, 10 Apr 2009, Rince wrote: > > FWIW, I strongly expect live ripping of a SATA device to not panic the >> disk >> layer. It explicitly shouldn't panic the ZFS layer, as ZFS is supposed to >> b

Re: [zfs-discuss] ZFS Panic

2009-04-09 Thread Rince
FWIW, I strongly expect live ripping of a SATA device to not panic the disk layer. It explicitly shouldn't panic the ZFS layer, as ZFS is supposed to be "fault-tolerant" and "drive dropping away at any time" is a rather expected scenario. [I've popped disks out live in many cases, both when I was

Re: [zfs-discuss] Zpools on USB

2009-03-23 Thread Rince
On Sat, Mar 14, 2009 at 8:25 PM, Richard Elling wrote: > Florian Ermisch wrote: > >> Richard Elling schrieb: >> [...] >> >>> ZFS maintains a cache of what pools were imported so that at boot time, >>> it will automatically try to re-import the pool. The file is >>> /etc/zfs/zpool.cache >>> and yo

Re: [zfs-discuss] Can't find my pool

2006-12-19 Thread Rince
On 12/19/06, Brian Hechinger <[EMAIL PROTECTED]> wrote: On Tue, Dec 19, 2006 at 02:55:59PM -0500, Rince wrote: > > If it doesn't show up there, I'll be surprised. I take that back, I just managed to restore my ability to boot the old instance. I will be making backups an

Re: [zfs-discuss] Can't find my pool

2006-12-19 Thread Rince
On 12/19/06, Brian Hechinger <[EMAIL PROTECTED]> wrote: I'm trying to upgrade my desktop at work. It used to have a 10G partition with Windows on it and the rest of the disk was for Solaris. Windows pissed me off one too many times and got turned into a 10G swap partition. Because of the way

[zfs-discuss] RAID-Z1 pool became faulted when a disk was removed.

2006-11-01 Thread Rince
So I have attached to my system two 7-disk SCSI arrays, each of 18.2 GB disks.Each of them is a RAID-Z1 zpool.I had a disk I thought was a dud, so I pulled the fifth disk in my array and put the dud in. Sure enough, Solaris started spitting errors like there was no tomorrow in dmesg, and wouldn't u

[zfs-discuss] ZFS thinks my 7-disk pool has imaginary disks

2006-10-30 Thread Rince
Hi all,I recently created a RAID-Z1 pool out of a set of 7 SCSI disks, using the following command:# zpool create magicant raidz c5t0d0 c5t1d0 c5t2d0 c5t3d0 c5t4d0 c5t5d0 c5t6d0It worked fine, but I was slightly confused by the size yield (99 GB vs the 116 GB I had on my other RAID-Z1 pool of same-

[zfs-discuss] Changing number of disks in a RAID-Z?

2006-10-14 Thread Rince
Recently, I was in a position where I was aiding someone in configuring five disks in RAID-Z1, and we were discussing whether or not it would be possible to add (not replace) disks to the pool without destroying and recreating the filesystem. As far as I know, this is not currently possible (as o