zpool upgrade issue?

[Teske, Devin]

On Sep 20, 2013, at 4:51 PM, Glen Barber wrote:

> On Fri, Sep 20, 2013 at 11:44:54PM +0000, Teske, Devin wrote:
>> Hi,
>> 
>> I recently upgraded a ZFS pool on my system and the reported version
>> changed from "14" to "-" and I'm wondering if this is a bug.
>> 
>> dteske at hvm2a ~ $ zpool list
>> NAME          SIZE  ALLOC   FREE    CAP  DEDUP  HEALTH  ALTROOT
>> LSI-RAID1    1.39T  6.58G  1.39T     0%  1.00x  ONLINE  -
>> NEC2_POOL_A  3.91T   126K  3.91T     0%  1.00x  ONLINE  -
>> dteske at hvm2a ~ $ zpool status
>>  pool: LSI-RAID1
>> state: ONLINE
>> status: The pool is formatted using a legacy on-disk format.  The pool can
>> 	still be used, but some features are unavailable.
>> action: Upgrade the pool using 'zpool upgrade'.  Once this is done, the
>> 	pool will no longer be accessible on software that does not support feature
>> 	flags.
>>  scan: none requested
>> config:
>> 
>> 	NAME        STATE     READ WRITE CKSUM
>> 	LSI-RAID1   ONLINE       0     0     0
>> 	  mfid0s1g  ONLINE       0     0     0
>> 	  mfid1     ONLINE       0     0     0
>> 
>> errors: No known data errors
>> 
>>  pool: NEC2_POOL_A
>> state: ONLINE
>> status: The pool is formatted using a legacy on-disk format.  The pool can
>> 	still be used, but some features are unavailable.
>> action: Upgrade the pool using 'zpool upgrade'.  Once this is done, the
>> 	pool will no longer be accessible on software that does not support feature
>> 	flags.
>>  scan: none requested
>> config:
>> 
>> 	NAME                    STATE     READ WRITE CKSUM
>> 	NEC2_POOL_A             ONLINE       0     0     0
>> 	  multipath/NEC2_LUN_A  ONLINE       0     0     0
>> 
>> errors: No known data errors
>> dteske at hvm2a ~ $ zpool get version
>> NAME         PROPERTY  VALUE    SOURCE
>> LSI-RAID1    version   14       local
>> NEC2_POOL_A  version   14       local
>> 
>> 
>> === Now for the upgrade ===
>> 
>> 
>> dteske at hvm2a ~ $ uname -a
>> FreeBSD hvm2a 8.4-STABLE FreeBSD 8.4-STABLE #2 r255470M: Wed Sep 11 01:29:15 UTC 2013     dteske at push840-64.vicor.com:/usr/src/sys/amd64/compile/FIS-amd64  amd64
>> dteske at hvm2a ~ $ sr zpool upgrade -a
>> [sudo] Password:
>> This system supports ZFS pool feature flags.
>> 
>> Successfully upgraded 'LSI-RAID1' from version 14 to feature flags.
>> Enabled the following features on 'LSI-RAID1':
>>  async_destroy
>>  empty_bpobj
>>  lz4_compress
>> 
>> Successfully upgraded 'NEC2_POOL_A' from version 14 to feature flags.
>> Enabled the following features on 'NEC2_POOL_A':
>>  async_destroy
>>  empty_bpobj
>>  lz4_compress
>> 
>> dteske at hvm2a ~ $ zpool get version
>> NAME         PROPERTY  VALUE    SOURCE
>> LSI-RAID1    version   -        default
>> NEC2_POOL_A  version   -        default
>> 
>> === Why doesn't it say 28?? ===
>> 
> 
> Because it isn't version 28.  Since the feature flags
> (zpool-features(7)), the zpool spa version is 5000.
> 

Thanks.

I also happened across r236884 and am reading up on that now too.
-- 
Devin

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