Re: zfs and snapshots

Thomas Schweikle <tps@xxxxxxxxx> writes:
# zfs snapshot zroot@snap
#

# zfs list
NAME USED AVAIL REFER MOUNTPOINT
zroot 8.63G 16.7G 428M legacy

How do I access a snapshot taken from zroot?

The ZFS snapshots for each ZFS file system should be in its
root/.zfs/snapshot/{snapshot name}. In your example above,
the snapshot should be in /.zfs/snapshot/snap.

ZFS snapshots don't cross mount points unless you use -r, so your
snapshot command above won't snapshot the other ZFS's in that pool.
To snapshot all of them:

zfs snapshot -r zroot@snap

after which you'll find a .zfs/snapshot/snap subdirectory in each ZFS's
root.

# ls -la /.snap

You're thinking of the temporary, non-ZFS snapshots created by dump(8)
or fsck, or perhaps what you read under newfs -n.

HTH,
-WBE
.

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