Pool created on FreeBSD 7.x not importing to FreeBSD 9.X

M

mefizto

Greetings all,

I have a storage pool created on FreeBSD version 7.X. I am trying to import the pool into FreeBSD 9.1, but I am getting a message:
Code: 
cannot import 'storage': pool is formatted using a newer ZFS version
This does not seem correct, as FreeBSD 7.X did not have ZFS version newer than FreeBSD 9.1

Any help would be appreciated.

M
 
mefizto said:
I have a storage pool created on FreeBSD version 7.X. I am trying to import the pool into FreeBSD 9.1, but I am getting a message:
Code: 
cannot import 'storage': pool is formatted using a newer ZFS version
This does not seem correct, as FreeBSD 7.X did not have ZFS version newer than FreeBSD 9.1
Click to expand...
I don't recall when various ZFS updates were merged to the various FreeBSD branches, but it may be possible that you have a pool with feature flags on a system that doesn't support them. The output of # zdb -u poolname would be informative. Note that you need to specify additional command line options when working on an exported pool. Refer to the zdb(8) manpage for more information. Here's output from a system with a v28 pool followed by a system with a feature flags pool:
Code: 
(0:2) rz1m:/sysprog/terry# zdb -u data

Uberblock:
        magic = 0000000000bab10c
        [i]version = 28[/i]
        txg = 7870098
        guid_sum = 15090976296497574084
        timestamp = 1360391356 UTC = Sat Feb  9 01:29:16 2013
Code: 
(0:11) rz1:/sysprog/terry# zdb -u data

Uberblock:
        magic = 0000000000bab10c
        [i]version = 5000[/i]
        txg = 10261283
        guid_sum = 16024844943735753862
        timestamp = 1360395402 UTC = Sat Feb  9 02:36:42 2013
Once we know what version your pool thinks it is using, you might be able to get better advice.
 
Solved

Hi Terry,

thank you very much for the reply, which was essential for solving the problem.

When I ran the # zdb -e storage command, it returned an information that the version of ZFS was 31, which was perplexing. However, further examination of the returned information revealed that a description of the physical path to the vdev was Solaris like. Because I was using FreeBSD, but I was backing my data to a Solaris 11 machine, I have mistakenly used the vdev from the Solaris machine.

I apologize for my stupidity; on the other hand, I have learnt something today.

Kindest regards,

M
 
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