K 10
svn:author
V 3
bcr
K 8
svn:date
V 27
2019-01-24T18:13:23.046390Z
K 7
svn:log
V 1102
Add ZFS usage tips to freebsd-tips.

Add a bunch of examples on how to use ZFS features like:
- listing available space,
- setting and displaying a userquota,
- displaying pool I/O statistics and pool history,
- displaying the compression ratio for a dataset,
- various list options (sorting, removing headers),
- performing a dry-run of a snapshot delete,
- removing a range of snapshots,
- setting a custom property,
- preventing removal of a snapshot with ZFS holds,
- permission sets for zfs send/receive.

Additionally, clarify the existing examples a bit when
it comes to displaying space by mentioning UFS explicitly.
Other examples include displaying I/O in top(1), querying
sysctl(8) for active CPUs and available RAM. Mention systat(1)
and its options, too.
While here, reformat the example to upload a dmesg(8) a bit
to wrap properly.

Thanks to Allan Jude for his help with some of the ZFS examples.

Reviewed by:	dru,allanjude
Approved by:	allanjude (earlier version)
MFC after:	3 days
Relnotes:	yes (ZFS examples in freebsd-tips)
Differential Revision:	https://reviews.freebsd.org/D18541

END