[OpenIndiana-discuss] What is the recommended way to back up root pool?

Bob Friesenhahn bfriesen at simple.dallas.tx.us
Wed Oct 28 23:24:46 UTC 2015


What is the recommended approach to back up a zfs root pool?

For other pools I use zfs send/receive and/or rsync-based methods.

The zfs root pool is different since it contains multiple filesystems, 
with the filesystem for one one BE being mounted at a time:

% zfs list -r -t filesystem rpool
NAME                                USED  AVAIL  REFER  MOUNTPOINT
rpool                              79.7G   377G    50K  /rpool
rpool/ROOT                         29.5G   377G    31K  legacy
rpool/ROOT/openindiana             15.8M   377G  3.15G  /
rpool/ROOT/openindiana-1           38.9M   377G  5.97G  /
rpool/ROOT/openindiana-2           40.6M   377G  11.3G  /
rpool/ROOT/openindiana-2-backup-1   124K   377G  10.5G  /
rpool/ROOT/openindiana-3           48.4M   377G  13.2G  /
rpool/ROOT/openindiana-3-backup-1    76K   377G  11.4G  /
rpool/ROOT/openindiana-3-backup-2    45K   377G  11.5G  /
rpool/ROOT/openindiana-3-backup-3   123K   377G  11.9G  /
rpool/ROOT/openindiana-3-backup-4    44K   377G  12.1G  /
rpool/ROOT/openindiana-4           20.1M   377G  18.8G  /
rpool/ROOT/openindiana-4-backup-1    95K   377G  13.3G  /
rpool/ROOT/openindiana-4-backup-2   156K   377G  18.8G  /
rpool/ROOT/openindiana-5           17.5M   377G  18.9G  /
rpool/ROOT/openindiana-6           29.4G   377G  17.6G  /
rpool/export                        121M   377G    32K  /export
rpool/export/home                   121M   377G    32K  /export/home

This means that there are multiple filesystems which would need to be 
backed up in order to save a replica of the pool.

At the moment I am using rsync-based backup of only selected 
filesystems.

It is not clear to me where configuration due to utilities like 
'ipadm' and 'dladm' is stored, but I am pretty sure it is to files 
under the /etc directory.

What is recommended/common practice for backing up the root pool?

Bob
-- 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/



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