Re: [zfs-discuss] FS Reliability WAS: about btrfs and zfs

2011-10-22 Thread Fajar A. Nugraha
On Sat, Oct 22, 2011 at 11:36 AM, Paul Kraus p...@kraus-haus.org wrote: Recently someone posted to this list of that _exact_ situation, they loaded an OS to a pair of drives while a pair of different drives containing an OS were still attached. The zpool on the first pair ended up not being

[zfs-discuss] File contents changed with no ZFS error

2011-10-22 Thread Robert Watzlavick
I've noticed something strange over the past few months with four files on my raidz. Here's the setup: OpenSolaris snv_111b ZFS Pool version 14 AMD-based server with ECC RAM. 5 ST3500630AS 500 GB SATA drives (4 active plus spare) in raidz1 The other day, I observed what appears to be

Re: [zfs-discuss] File contents changed with no ZFS error

2011-10-22 Thread Edward Ned Harvey
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Robert Watzlavick What failure scenario could have caused this? The file was obviously initially good on the raidz because it got backed up to the USB drive and that matches the good

Re: [zfs-discuss] File contents changed with no ZFS error

2011-10-22 Thread Robert Watzlavick
On Oct 22, 2011, at 13:14, Edward Ned Harvey opensolarisisdeadlongliveopensola...@nedharvey.com wrote: How can you outrule the possibility of something changed the file. Intentionally, not as a form of filesystem corruption. I suppose that's possible but seems unlikely. One byte on a file

Re: [zfs-discuss] File contents changed with no ZFS error

2011-10-22 Thread Robert Watzlavick
On Oct 22, 2011, at 12:55, Garrett D'Amore garrett.dam...@nexenta.com wrote: You're using an *old* version of both OpenSolaris and zpool. There have been a few corruption bugs fixed since then. I'd recommend updating. - Garrett I was looking for the changelist to see if any have

Re: [zfs-discuss] File contents changed with no ZFS error

2011-10-22 Thread Mark Sandrock
Why don't you see which byte differs, and how it does? Maybe that would suggest the failure mode. Is it the same byte data in all affected files, for instance? Mark Sent from my iPhone On Oct 22, 2011, at 2:08 PM, Robert Watzlavick rob...@watzlavick.com wrote: On Oct 22, 2011, at 13:14,