diff options
Diffstat (limited to 'cddl/contrib/opensolaris/cmd/zfs/zfs.8')
| -rw-r--r-- | cddl/contrib/opensolaris/cmd/zfs/zfs.8 | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/cddl/contrib/opensolaris/cmd/zfs/zfs.8 b/cddl/contrib/opensolaris/cmd/zfs/zfs.8 index 3a75681..7b3069d 100644 --- a/cddl/contrib/opensolaris/cmd/zfs/zfs.8 +++ b/cddl/contrib/opensolaris/cmd/zfs/zfs.8 @@ -24,10 +24,11 @@ .\" Copyright (c) 2011, Pawel Jakub Dawidek <pjd@FreeBSD.org> .\" Copyright (c) 2012, Glen Barber <gjb@FreeBSD.org> .\" Copyright (c) 2012, Bryan Drewery <bdrewery@FreeBSD.org> +.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved. .\" .\" $FreeBSD$ .\" -.Dd November 26, 2012 +.Dd February 8, 2012 .Dt ZFS 8 .Os .Sh NAME @@ -866,7 +867,7 @@ but this may change in future releases). The value disables integrity checking on user data. Disabling checksums is .Em NOT a recommended practice. -.It Sy compression Ns = Ns Cm on | off | lzjb | gzip | gzip- Ns Ar N | Cm zle +.It Sy compression Ns = Ns Cm on | off | lzjb | gzip | gzip- Ns Ar N | zle | Cm lz4 Controls the compression algorithm used for this dataset. The .Cm lzjb compression algorithm is optimized for performance while providing decent data @@ -894,6 +895,26 @@ The .Cm zle compression algorithm compresses runs of zeros. .Pp +The +.Sy lz4 +compression algorithm is a high-performance replacement +for the +.Sy lzjb +algorithm. It features significantly faster +compression and decompression, as well as a moderately higher +compression ratio than +.Sy lzjb , +but can only be used on pools with +the +.Sy lz4_compress +feature set to +.Sy enabled . +See +.Xr zpool-features 7 +for details on ZFS feature flags and the +.Sy lz4_compress +feature. +.Pp This property can also be referred to by its shortened column name .Cm compress . Changing this property affects only newly-written data. |
