Scratch that; all the clients are using NFSv4:

/usr/local/media from cockerel:/usr/local/media
  Flags:	rw,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=0.0.0.0,local_lock=none,addr=192.168.0.71


On Sat, 8 Feb 2014, tclug at freakzilla.com wrote:

> Looks like it's supported on both server and clients. Not sure if it's 
> enforced...
>
> On Sat, 8 Feb 2014, Jake Vath wrote:
>
>> 
>> Are you using NFSv4?
>> 
>> -> Jake
>> 
>> On Feb 8, 2014 9:09 PM, <tclug at freakzilla.com> wrote:
>>       On Sat, 8 Feb 2014, Jake Vath wrote:
>>
>>             What kernel version are you running?
>> 
>>
>>         sterling at cockerel:/home/sterling> uname -a
>>         Linux cockerel 3.5.0-45-generic #68-Ubuntu SMP Mon Dec 2
>>       21:58:52 UTC
>>         2013 x86_64 x86_64 x86_64 GNU/Linux
>>
>>       This is several Ubuntus ago, I'm tempted to do an upgrade but I
>>       have a bunch of custom code things running there and I've not
>>       had time to make a full OS backup...
>>
>>       And in case you want this too:
>>
>>         sterling at cockerel:/home/sterling> dpkg --list|grep zfs
>>         ii  dkms
>>         2.2.0.3-1.1ubuntu1.1+zfs6~quantal1     all          Dynamic
>>       Kernel
>>         Module Support Framework
>>         ii  libzfs1                               0.6.2-1~quantal
>>         amd64        Native ZFS filesystem library for Linux
>>         ii  mountall                              2.42ubuntu0.4-zfs2
>>         amd64        filesystem mounting tool
>>         ii  ubuntu-zfs                            7~quantal
>>         amd64        Native ZFS filesystem metapackage for Ubuntu.
>>         ii  zfs-dkms                              0.6.2-1~quantal
>>         amd64        Native ZFS filesystem kernel modules for Linux
>>         ii  zfsutils                              0.6.2-1~quantal
>>         amd64        Native ZFS management utilities for Linux
>> 
>>
>>       There is something I noticed when I looked at the FS options; I
>>       have this guy:
>>
>>         media  sharenfs              off                    default
>>
>>       I am sharing this guy over NFS, I'm not sure if setting this
>>       option somehow optimises the pool for it or if it's just a way
>>       to write the /etc/exports/whatever file. Google/Oracle's
>>       documentation on the subject is lacking (:
>> 
>>
>>       _______________________________________________
>>       TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
>>       tclug-list at mn-linux.org
>>       http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>> 
>> 
>