So I'm really exposing my ignorance here, but...

You wrote "/... if you wish to keep your snapshots.../"...
I never mentioned snapshots, thus you
introduced the use of a ZFS snapshot as a method of doing what
I wish to do. And yes, snapshots and send are in the manual, and
I read about them.

I intially (and perhaps incorrectly) rejected the use of snapshots for
my purposes since a snapshot is, by definition, a read-only copy
of the file system. What I need to do is copy the file system in it's
entirety, so I can mount the new file system read/write for online,
production use. Perhaps I should have been clearer about that.

I will investigate using ZFS snapshots with ZFS send as a method
for accomplishing my task. I'm not convinced it's the best way
to acheive my goal, but if it's not, I'd like to make sure I understand
why not.

Thanks for your interest.
/jim


Mattias Pantzare wrote:
> 2008/7/20 James Mauro <[EMAIL PROTECTED]>:
>   
>> Is there an optimal method of making a complete copy of a ZFS, aside from 
>> the conventional methods (tar, cpio)?
>>
>> We have an existing ZFS that was not created with the optimal recordsize.
>> We wish to create a new ZFS with the optimal recordsize (8k), and copy
>> all the data from the existing ZFS to the new ZFS.
>>
>> Obviously, we know how to do this using conventional utilities and commands.
>>
>> Is there a ZFS-specific method for doing that beats the heck of out tar, etc?
>> (RTFM indicates there is not; I R'd the FM :^).
>>     
>
> Use zfs send | zfs receive if you wish to keep your snapshots or if
> you will be doing the copy several times. You can send just the
> changes between two snapshots.
>
> (zfs send is in the FM :-)
>
>   
>> This may or may not be a copy to the same zpool, and I'd also be interested 
>> in
>> knowing of that makes a difference (I do not think it does)?
>>     
>
> It does not.
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