Re: ZFS...

2019-05-08 Thread Miroslav Lachman
Pete French wrote on 2019/05/03 14:28: On 03/05/2019 13:11, Miroslav Lachman wrote: I had this problem in the past too. I am not sure if it was on Dell or HP machine - controller presents first disk only in the boot time so I created small (10 - 15GB partition) on each disk and use them all

Re: ZFS...

2019-05-08 Thread Michelle Sullivan
Michelle Sullivan http://www.mhix.org/ Sent from my iPad On 09 May 2019, at 01:55, Walter Parker wrote: >> >> >> ZDB (unless I'm misreading it) is able to find all 34m+ files and >> verifies the checksums. The problem is in the zfs data structures (one >> definitely, two maybe, metaslabs

Re: ZFS...

2019-05-08 Thread Michelle Sullivan
Michelle Sullivan http://www.mhix.org/ Sent from my iPad > On 09 May 2019, at 03:04, Karl Denninger wrote: > >> On 5/8/2019 11:53, Freddie Cash wrote: >>> On Wed, May 8, 2019 at 9:31 AM Karl Denninger wrote: >>> >>> I have a system here with about the same amount of net storage on it as

Re: ZFS...

2019-05-08 Thread Karl Denninger
On 5/8/2019 11:53, Freddie Cash wrote: > On Wed, May 8, 2019 at 9:31 AM Karl Denninger wrote: > >> I have a system here with about the same amount of net storage on it as >> you did. It runs scrubs regularly; none of them take more than 8 hours >> on *any* of the pools. The SSD-based pool is of

Re: ZFS...

2019-05-08 Thread Freddie Cash
On Wed, May 8, 2019 at 9:31 AM Karl Denninger wrote: > I have a system here with about the same amount of net storage on it as > you did. It runs scrubs regularly; none of them take more than 8 hours > on *any* of the pools. The SSD-based pool is of course *much* faster > but even the many-way

Re: ZFS...

2019-05-08 Thread Walter Cramer
On Wed, 8 May 2019, Paul Mather wrote: On May 8, 2019, at 9:59 AM, Michelle Sullivan wrote: Paul Mather wrote: due to lack of space. Interestingly have had another drive die in the array - and it doesn't just have one or two sectors down it has a *lot* - which was not noticed by the

Re: ZFS...

2019-05-08 Thread Karl Denninger
On 5/8/2019 10:14, Michelle Sullivan wrote: > Paul Mather wrote: >> On May 8, 2019, at 9:59 AM, Michelle Sullivan >> wrote: >> Did you have regular pool scrubs enabled?  It would have picked up silent data corruption like this.  It does for me. >>> Yes, every month (once a month

Re: ZFS...

2019-05-08 Thread Walter Parker
> > > ZDB (unless I'm misreading it) is able to find all 34m+ files and > verifies the checksums. The problem is in the zfs data structures (one > definitely, two maybe, metaslabs fail checksums preventing the mounting > (even read-only) of the volumes.) > > > Especially, how to you know > >

Re: ZFS...

2019-05-08 Thread Michelle Sullivan
Paul Mather wrote: On May 8, 2019, at 9:59 AM, Michelle Sullivan wrote: Paul Mather wrote: due to lack of space. Interestingly have had another drive die in the array - and it doesn't just have one or two sectors down it has a *lot* - which was not noticed by the original machine - I moved

Re: ZFS...

2019-05-08 Thread Paul Mather
On May 8, 2019, at 9:59 AM, Michelle Sullivan wrote: Paul Mather wrote: due to lack of space. Interestingly have had another drive die in the array - and it doesn't just have one or two sectors down it has a *lot* - which was not noticed by the original machine - I moved the drive to a

Re: ZFS...

2019-05-08 Thread Michelle Sullivan
Paul Mather wrote: due to lack of space. Interestingly have had another drive die in the array - and it doesn't just have one or two sectors down it has a *lot* - which was not noticed by the original machine - I moved the drive to a byte copier which is where it's reporting 100's of

Re: ZFS...

2019-05-08 Thread Paul Mather
On May 7, 2019, at 8:25 PM, Michelle Sullivan wrote: Paul Mather wrote: On May 7, 2019, at 1:02 AM, Michelle Sullivan wrote: [[...]] Umm.. well I install by memory stick images and I had a 10.2 and an 11.0 both of which had root on zfs as the default.. I had to manually change them.

Re: ZFS...

2019-05-08 Thread Michelle Sullivan
Borja Marcos via freebsd-stable wrote: On 8 May 2019, at 05:09, Walter Parker wrote: Would a disk rescue program for ZFS be a good idea? Sure. Should the lack of a disk recovery program stop you from using ZFS? No. If you think so, I suggest that you have your data integrity priorities in the

Re: ZFS...

2019-05-08 Thread Borja Marcos via freebsd-stable
> On 8 May 2019, at 05:09, Walter Parker wrote: > Would a disk rescue program for ZFS be a good idea? Sure. Should the lack > of a disk recovery program stop you from using ZFS? No. If you think so, I > suggest that you have your data integrity priorities in the wrong order > (focusing on