Hi Pavel,
I am just following up on this, did you have a chance to write the
post, or I missed it?
Thank you,
Evgeny.
On Jul 18, 2016 10:14 AM, "Pavel Zakharov" <[email protected]>
wrote:
> Hi Evgeny,
>
> As others have pointed out, your best bet right now is to keep your raw
> disks backed up and wait for better tools for ZFS data recovery. I've
> recently worked on some ZFS changes to make such recovery easier and have a
> higher success rate. It will probably take a few months until it is pushed
> to Illumos but I'll let you know once that is done.
>
> I'm planning to write a blog post once the feature is out. Here's a few
> things that I've addressed that might be applicable to your case:
> - Add debug tracing during the pool import process
> - Allow importing pools through configuration changes (e.g. a device was
> replaced)
> - Add global variables to allow overriding some checks during pool
> import, using the kernel debugger / zdb.
>
> Regards,
> Pavel
>
> On Sun, Jun 5, 2016 at 5:22 PM, BlackCat <[email protected]> wrote:
>
>> Hello,
>>
>> 2016-06-03 20:56 GMT+03:00 esamorokov <[email protected]>:
>> > My name is Evgeny and I have 3 x 3TB in RAIDZ1, where one drive is
>> gone
>> > and I accidentally
>> > screwed the other two. The data should be fine, just need to revert
>> > uberblock in point of time, where i started doing changes.
>> >
>> > History:
>> > I was using WEB GUI of FreeNas and it reported a failed drive
>> > I shutdown the computer and replaced the drive, but I did not
>> noticed
>> > that I accidentally disconnected power of another drive
>> > I powered on the server and expanded the pool where there only one
>> drive
>> > of the pool was active
>> > Then I began to really learn ZFS and messing up with bits
>> > At some point I created a backup bit-to-bit images of the two drives
>> > from the pool (using R-Studio)
>> >
>> >
>>
>> I am still wonder about two things, may be someone more familiar with
>> FreeBSD realization could provide some clue:
>>
>> - how ada2p2 partition GUID could change if Evgeny make bit-to-bit
>> clone of the whole drive? Is it possible to zfs recreate partition
>> when it adding partition to pool?
>>
>> - why ZFS allows attaching ada2p2 to a new pool and in same time it
>> rejected attaching of ada1p2, while both drives are in the same
>> condition?
>>
>> --
>> BR BC
>>
>
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