zfs discuss - Aug 2008 - Compress a Root Pool?

Is it possible to compress a root pool?  If yes, how?  Thanks.


(I installed os 08.05 into a 4 GB USB stick, and want to know whether I could
squeeze more stuff in there.)
 
 
This message posted from opensolaris.org

Sure, 
zfs set compression=on rpool

Of course this only compresses items written after compression is turned on.
On my system when I started to perform the install I opened up a
terminal and after rpool was created I set the compression to on so that
it got set before the packages were installed.

If you have already performed the install I''m not sure if there is an 
easy way
to have the compression affect the current files so that you can regain some
of the currently used space. Maybe someone else has an idea on that.

-Mark D.


W. Wayne Liauh wrote:
> Is it possible to compress a root pool?  If yes, how?  Thanks.
>
>
> (I installed os 08.05 into a 4 GB USB stick, and want to know whether I
could squeeze more stuff in there.)
>  
>  
> This message posted from opensolaris.org
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss at opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
>

Mark Danico wrote:
> Sure, 
> zfs set compression=on rpool
>
> Of course this only compresses items written after compression is turned
on.
> On my system when I started to perform the install I opened up a
> terminal and after rpool was created I set the compression to on so that
> it got set before the packages were installed.
>
> If you have already performed the install I''m not sure if there is
an
> easy way
> to have the compression affect the current files so that you can regain
some
> of the currently used space. Maybe someone else has an idea on that.
>
>   
See the thread "ZFS root compressed ?" from June 6th. for some
suggestions.

Ian.