Certain combinations of nVidia chips will cause silent data corruption
under FreeBSD. Google "freebsd mcp55 corruption" for more information.
---
Daniel Eriksson (http://www.toomuchdata.se/)
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On Mon, 20 Oct 2008, Fabian Keil wrote:
> Jeremy Chadwick <[EMAIL PROTECTED]> wrote:
>
> > On Mon, Oct 20, 2008 at 03:07:30PM -0200, JoaoBR wrote:
> > > On Monday 20 October 2008 11:22:08 you wrote:
>
> > > > Also, do you not think it's a little odd that the only data
> > > > corruption oc
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Jeremy Chadwick wrote:
[snip]
> Ahh, I see. So to paraphrase, ZFS can detect checksum errors (data
> corruption) using any pool type (single disk, mirror, raidz, whatever),
> but can only *repair* the error when using a mirror or raidz.
Also when cop
> all right and understood but shouldn't something as fsck should correct the
> error? Seems kind of problematic to me mounting zfs in single user mode,
> deleting the file and restarting the OS ?
According to Sun's documents, removing corrupted file seems to be
'official' way to get rid of the pr
Jeremy Chadwick <[EMAIL PROTECTED]> wrote:
> On Mon, Oct 20, 2008 at 03:07:30PM -0200, JoaoBR wrote:
> > On Monday 20 October 2008 11:22:08 you wrote:
> > > Also, do you not think it's a little odd that the only data
> > > corruption occurring for you are related to RRDtool?
> >
> > this yes I t
On Mon, Oct 20, 2008 at 1:32 PM, Jeremy Chadwick <[EMAIL PROTECTED]> wrote:
> On Mon, Oct 20, 2008 at 03:18:01PM -0200, JoaoBR wrote:
> > On Monday 20 October 2008 15:03:14 Chuck Swiger wrote:
> > > On Oct 20, 2008, at 9:48 AM, Jeremy Chadwick wrote:
> > > > Hm... I thought we determined earlier i
On Oct 20, 2008, at 10:19 AM, Jeremy Chadwick wrote:
He's not getting working filesystem redundancy with the existing
config
and is vulnerable to losing data from a single drive failure, agreed.
But the ZFS checksum mechanism should still be working to detect data
corruption, even though ZFS ca
JoaoBR <[EMAIL PROTECTED]> wrote:
> On Monday 20 October 2008 11:22:08 you wrote:
> > On Mon, Oct 20, 2008 at 08:37:40AM -0200, JoaoBR wrote:
> > > On Friday 17 October 2008 15:39:59 Chuck Swiger wrote:
> > > > On Oct 17, 2008, at 11:30 AM, JoaoBR wrote:
> > > > > constantly I find data corruption
On Mon, Oct 20, 2008 at 03:18:01PM -0200, JoaoBR wrote:
> On Monday 20 October 2008 15:03:14 Chuck Swiger wrote:
> > On Oct 20, 2008, at 9:48 AM, Jeremy Chadwick wrote:
> > > Hm... I thought we determined earlier in this thread that the OP is
> > > not
> > > getting the benefits of ZFS checksums be
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JoaoBR wrote:
> On Friday 17 October 2008 15:49:54 Xin LI wrote:
[...]
>>> some idea?
>> For ZFS: I think you need to remove these file. ZFS scrub does not
>> recover file if you don't have redundant, e.g. copies=2 or raid-z, etc.
>
> ok I see, I di
On Monday 20 October 2008 15:03:14 Chuck Swiger wrote:
> On Oct 20, 2008, at 9:48 AM, Jeremy Chadwick wrote:
> > Hm... I thought we determined earlier in this thread that the OP is
> > not
> > getting the benefits of ZFS checksums because he's not using raidz
> > (only
> > a single disk with a sing
On Mon, Oct 20, 2008 at 10:03:14AM -0700, Chuck Swiger wrote:
> On Oct 20, 2008, at 9:48 AM, Jeremy Chadwick wrote:
>> Hm... I thought we determined earlier in this thread that the OP is
>> not
>> getting the benefits of ZFS checksums because he's not using raidz
>> (only
>> a single disk with
On Mon, Oct 20, 2008 at 03:07:30PM -0200, JoaoBR wrote:
> On Monday 20 October 2008 11:22:08 you wrote:
> > On Mon, Oct 20, 2008 at 08:37:40AM -0200, JoaoBR wrote:
> > > On Friday 17 October 2008 15:39:59 Chuck Swiger wrote:
> > > > On Oct 17, 2008, at 11:30 AM, JoaoBR wrote:
> > > > > constantly I
On Monday 20 October 2008 14:44:50 Chuck Swiger wrote:
> Hi, all--
>
> On Oct 20, 2008, at 6:22 AM, Jeremy Chadwick wrote:
> [ ...JoaoBR wrote... ]
>
> >> well, hardware seems to be ok and not older than 6 month, also
> >> happens not
> >> only on one machine ... smartctl do not report any hw failu
On Monday 20 October 2008 11:22:08 you wrote:
> On Mon, Oct 20, 2008 at 08:37:40AM -0200, JoaoBR wrote:
> > On Friday 17 October 2008 15:39:59 Chuck Swiger wrote:
> > > On Oct 17, 2008, at 11:30 AM, JoaoBR wrote:
> > > > constantly I find data corruption on ZFS volums, ever from rrdtool,
> > > > th
On Oct 20, 2008, at 9:48 AM, Jeremy Chadwick wrote:
Hm... I thought we determined earlier in this thread that the OP is
not
getting the benefits of ZFS checksums because he's not using raidz
(only
a single disk with a single pool)?
He's not getting working filesystem redundancy with the exi
On Mon, Oct 20, 2008 at 09:44:50AM -0700, Chuck Swiger wrote:
> Hi, all--
>
> On Oct 20, 2008, at 6:22 AM, Jeremy Chadwick wrote:
> [ ...JoaoBR wrote... ]
>>> well, hardware seems to be ok and not older than 6 month, also
>>> happens not
>>> only on one machine ... smartctl do not report any hw f
Hi, all--
On Oct 20, 2008, at 6:22 AM, Jeremy Chadwick wrote:
[ ...JoaoBR wrote... ]
well, hardware seems to be ok and not older than 6 month, also
happens not
only on one machine ... smartctl do not report any hw failures on
disk
regarding jumpering the drives to 150 you suspect a driver p
On Mon, Oct 20, 2008 at 08:37:40AM -0200, JoaoBR wrote:
> On Friday 17 October 2008 15:39:59 Chuck Swiger wrote:
> > On Oct 17, 2008, at 11:30 AM, JoaoBR wrote:
> > > constantly I find data corruption on ZFS volums, ever from rrdtool,
> > > this
> > > corrupt data happens on SATA disks, never seem
On Friday 17 October 2008 15:39:59 Chuck Swiger wrote:
> On Oct 17, 2008, at 11:30 AM, JoaoBR wrote:
> > constantly I find data corruption on ZFS volums, ever from rrdtool,
> > this
> > corrupt data happens on SATA disks, never seem on SCSI
>
> Presumably your SATA drives are correctly being report
On Friday 17 October 2008 15:49:54 Xin LI wrote:
> JoaoBR wrote:
> > Hi
> >
> > constantly I find data corruption on ZFS volums, ever from rrdtool, this
> > corrupt data happens on SATA disks, never seem on SCSI
> >
> > scrub is not able to repair, when comes to touch this files machines
> > reboot
On Oct 17, 2008, at 11:30 AM, JoaoBR wrote:
constantly I find data corruption on ZFS volums, ever from rrdtool,
this
corrupt data happens on SATA disks, never seem on SCSI
Presumably your SATA drives are correctly being reported by ZFS as
corrupting data, and you should do something like re
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JoaoBR wrote:
> Hi
>
> constantly I find data corruption on ZFS volums, ever from rrdtool, this
> corrupt data happens on SATA disks, never seem on SCSI
>
> scrub is not able to repair, when comes to touch this files machines reboots,
> deleting a
Hi
constantly I find data corruption on ZFS volums, ever from rrdtool, this
corrupt data happens on SATA disks, never seem on SCSI
scrub is not able to repair, when comes to touch this files machines reboots,
deleting and restorin also is not possÃble, seems I need to delete the files,
umoun
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