diff options
| author | Daniil Lunev <[email protected]> | 2014-10-18 11:58:11 -0400 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2014-10-20 16:17:49 -0700 |
| commit | 62bdd5eb7a35288cc25c5ae968bcd0f08889f986 (patch) | |
| tree | 35760de9fb45f308b375401b99a919aeb1ccaeb3 /man/man5/zpool-features.5 | |
| parent | ba232d8aead62e2af9c195c2802b89dbc891d5ef (diff) | |
Illumos 4924 - LZ4 Compression for metadata
Reviewed by Matthew Ahrens <[email protected]>
Reviewed by Saso Kiselkov <[email protected]>
Approved by: Christopher Siden <[email protected]>
References:
https://github.com/illumos/illumos-gate/commit/b8289d2
https://www.illumos.org/issues/3756
Porting notes:
The static function zfs_prop_activate_feature() was removed because
this change removes the only caller. The function was not removed
from Illumos but instead left as dead code. However, to keep gcc
happy it was removed from Linux and may be easily restored if needed.
Ported by: DHE <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #1540
Diffstat (limited to 'man/man5/zpool-features.5')
| -rw-r--r-- | man/man5/zpool-features.5 | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/man/man5/zpool-features.5 b/man/man5/zpool-features.5 index ff8313bf5..d80bb02ba 100644 --- a/man/man5/zpool-features.5 +++ b/man/man5/zpool-features.5 @@ -223,11 +223,14 @@ When the \fBlz4_compress\fR feature is set to \fBenabled\fR, the administrator can turn on \fBlz4\fR compression on any dataset on the pool using the \fBzfs\fR(8) command. Please note that doing so will immediately activate the \fBlz4_compress\fR feature on the underlying -pool (even before any data is written), and the feature will not be -deactivated. Since this feature is not read-only compatible, this -operation will render the pool unimportable on systems without support -for the \fBlz4_compress\fR feature. Booting off of \fBlz4\fR-compressed -root pools is supported. +pool using the \fBzfs\fR(1M) command. Also, all newly written metadata +will be compressed with \fBlz4\fR algorithm. Since this feature is not +read-only compatible, this operation will render the pool unimportable +on systems without support for the \fBlz4_compress\fR feature. Booting +off of \fBlz4\fR-compressed root pools is supported. + +This feature becomes \fBactive\fR as soon as it is enabled and will +never return to being \fBenabled\fB. .RE .sp |