ZFS MFC heads down

[Henri Hennebert]

Henri Hennebert wrote:
> Kip Macy wrote:
>> On Wed, May 20, 2009 at 2:59 PM, Kip Macy <kmacy at freebsd.org> wrote:
>>> I will be MFC'ing the newer ZFS support some time this afternoon. Both
>>> world and kernel will need to be re-built. Existing pools will
>>> continue to work without upgrade.
>>>
>>>
>>> If you choose to upgrade a pool to take advantage of new features you
>>> will no longer be able to use it with sources prior to today. 'zfs
>>> send/recv' is not expected to inter-operate between different pool
>>> versions.
>>
>>
>> The MFC went in r192498. Please let me know if you have any problems.
> 
> I upgrade to stable r192523:
> 
> FreeBSD morzine.restart.bel 7.2-STABLE FreeBSD 7.2-STABLE #0: Thu May 21 
> 13:18:53 CEST 2009 
> root at morzine.restart.bel:/usr/obj/usr/src/sys/MORZINE  i386
> 
> some strange things:
> 
> just after boot:
> 
> [root at morzine ~]# zfs upgrade
> This system is currently running ZFS filesystem version 3.
> 
> The following filesystems are out of date, and can be upgraded.  After 
> being
> upgraded, these filesystems (and any 'zfs send' streams generated from
> subsequent snapshots) will no longer be accessible by older software 
> versions.
> 
> 
> VER  FILESYSTEM
> ---  ------------
>  1   pool1
>  1   pool1/qemu
>  1   pool1/squid
>  1   pool2
>  1   pool2/WorkBench
>  1   pool2/backup
>  1   pool2/download
>  1   pool2/qemu
>  1   pool2/sys
>  1   rpool
>  1   rpool/home
>  1   rpool/root
>  1   rpool/tmp
>  1   rpool/usr
>  1   rpool/var
>  1   rpool/var/spool
> [root at morzine ~]# zfs upgrade -v
> The following filesystem versions are supported:
> 
> VER  DESCRIPTION
> ---  --------------------------------------------------------
>  1   Initial ZFS filesystem version
>  2   Enhanced directory entries
>  3   Case insensitive and File system unique identifer (FUID)
> 
> For more information on a particular version, including supported 
> releases, see:
> 
> http://www.opensolaris.org/os/community/zfs/version/zpl/N
> 
> Where 'N' is the version number.
> 
> 
> And now, after a few minutes:
> 
> [root at morzine ~]# zpool upgrade
> This system is currently running ZFS pool version 13.
> 
> The following pools are out of date, and can be upgraded.  After being
> upgraded, these pools will no longer be accessible by older software 
> versions.
> 
> VER  POOL
> ---  ------------
>  6   pool1
>  6   pool2
>  6   rpool
> 
> Use 'zpool upgrade -v' for a list of available versions and their 
> associated
> features.
> [root at morzine ~]# zpool upgrade -v
> This system is currently running ZFS pool version 13.
> 
> The following versions are supported:
> 
> VER  DESCRIPTION
> ---  --------------------------------------------------------
>  1   Initial ZFS version
>  2   Ditto blocks (replicated metadata)
>  3   Hot spares and double parity RAID-Z
>  4   zpool history
>  5   Compression using the gzip algorithm
>  6   bootfs pool property
>  7   Separate intent log devices
>  8   Delegated administration
>  9   refquota and refreservation properties
>  10  Cache devices
>  11  Improved scrub performance
>  12  Snapshot properties
>  13  snapused property
> For more information on a particular version, including supported 
> releases, see:
> 
> http://www.opensolaris.org/os/community/zfs/version/N
> 
> Where 'N' is the version number.
> 
> Strange isn't it o-)
> 
> By the way all seems ok!

This happen after the first boot in stable (comming from 7.2-RELEASE).

I reboot and can't reproduce it!.

Henri
> 
> Thanks to all for this update to zfs V13
> 
> Henri
>>
>> Thanks,
>> Kip
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