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

[Doug Hughes]

for home or for office?
for office, I don't back up root pool. it's considered disposible and
reproducible via reinstall. (that plus config management)
for home, you can zfs send it somewhere to a file if you want, or you can
tar it up since that's probably easier to restore individual files after an
oops. I do the latter. Then you could reinstall from golden image and
restore the files you need.


On Wed, Oct 28, 2015 at 7:24 PM, Bob Friesenhahn <
bfriesen at simple.dallas.tx.us> wrote:

> 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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