Thommy, If I read correctly your post stated that the pools did not automount on startup, not that they would go corrupt. It seems to me that Paulo is actually experiencing a corrupt fs
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thommy M. Sent: 02 June 2008 13:19 To: zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] ZFS problems with USB Storage devices Paulo Soeiro wrote: > Greetings, > > I was experimenting with zfs, and i made the following test, i shutdown > the computer during a write operation > in a mirrored usb storage filesystem. > > Here is my configuration > > NGS USB 2.0 Minihub 4 > 3 USB Silicom Power Storage Pens 1 GB each > > These are the ports: > > hub devices > /-------------------------------------------\ > | port 2 | port 1 | > | c10t0d0p0 | c9t0d0p0 | > --------------------------------------------- > | port 4 | port 4 | > | c12t0d0p0 | c11t0d0p0 | > \________________________/ > > Here is the problem: > > 1)First i create a mirror with port2 and port1 devices > > zpool create myPool mirror c10t0d0p0 c9t0d0p0 > -bash-3.2# zpool status > pool: myPool > state: ONLINE > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > myPool ONLINE 0 0 0 > mirror ONLINE 0 0 0 > c10t0d0p0 ONLINE 0 0 0 > c9t0d0p0 ONLINE 0 0 0 > > errors: No known data errors > > pool: rpool > state: ONLINE > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > rpool ONLINE 0 0 0 > c5t0d0s0 ONLINE 0 0 0 > > errors: No known data errors > > 2)zfs create myPool/myfs > > 3)created a random file (file.txt - more or less 100MB size) > > digest -a md5 file.txt > 3f9d17531d6103ec75ba9762cb250b4c > > 4)While making a second copy of the file: > > cp file.txt test & > > I've shutdown the computer while the file was being copied. And > restarted the computer again. And here is the result: > > > -bash-3.2# zpool status > pool: myPool > state: UNAVAIL > status: One or more devices could not be used because the label is missing > or invalid. There are insufficient replicas for the pool to continue > functioning. > action: Destroy and re-create the pool from a backup source. > see: http://www.sun.com/msg/ZFS-8000-5E > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > myPool UNAVAIL 0 0 0 insufficient replicas > mirror UNAVAIL 0 0 0 insufficient replicas > c12t0d0p0 OFFLINE 0 0 0 > c9t0d0p0 FAULTED 0 0 0 corrupted data > > pool: rpool > state: ONLINE > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > rpool ONLINE 0 0 0 > c5t0d0s0 ONLINE 0 0 0 > > errors: No known data errors > > ------------------------------------------------------------------- > > I was expecting that only one of the files was corrupted, not the all > the filesystem. This looks exactly like the problem I had (thread "USB stick unavailable after restart") and the answer I got was that you can't relay on the HUB ... I haven't tried another HUB yet but will eventually test the Adaptec XHub 4 (AUH-4000) which is on the HCL list... _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
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