Cleaning up unused ZFS container datasets

Thursday May 17, 2007

Everyone is excited about ZFS these days, so am I! The thing is, I am one of these guys who hate too many directories in the / filesystem, like ZFS do.

In the following example every ZFS dataset is mounted out of the zpool container (/mercury), so this remains empty. I wanted to get rid of this empty zpool container dataset somehow...to meet *my*, errr...ahem well..."mikey Fashion Standard©"

NAME                   USED  AVAIL  REFER  MOUNTPOINT
mercury               5.68G   262G  25.5K  /mercury
mercury/mail          36.4M  3.96G  36.4M  /var/mail
mercury/samba          996M  99.0G   996M  /data/samba
mercury/software      24.5K   262G  24.5K  /export/software

The solution was in fact pretty easy...

zfs set mountpoint=none mercury

so I end up with:

NAME                   USED  AVAIL  REFER  MOUNTPOINT
mercury               5.68G   262G  25.5K  none
mercury/mail          36.4M  3.96G  36.4M  /var/mail
mercury/samba          996M  99.0G   996M  /data/samba
mercury/software      24.5K   262G  24.5K  /export/software

Well, I can set a mountpoint for this zpool to something else, say... /tmp/mercury, but what's the point? It's empty, anyway.

Gotta love this feature.

Like this post? | | | |

Posted at 08:20PM May 17, 2007 by Michal Nowak in Solaris
Tags: opensolaris solaris zfs