X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=man%2Fman8%2Fzfs.8;fp=man%2Fman8%2Fzfs.8;h=474fde97ace1ebea76336a4e1691cf9a0197d5bc;hb=9759c60f1a1503e48dc5c45a209c3edd5758319f;hp=38d54c9cb91bb0e7bfb0b0397e50cd88ad09bd1f;hpb=ff5b1c8065c8a43add534892172f0aa5aba90f3d;p=zfs.git diff --git a/man/man8/zfs.8 b/man/man8/zfs.8 index 38d54c9..474fde9 100644 --- a/man/man8/zfs.8 +++ b/man/man8/zfs.8 @@ -25,6 +25,7 @@ .\" Copyright (c) 2012 by Delphix. All rights reserved. .\" Copyright (c) 2012, Joyent, Inc. All rights reserved. .\" Copyright 2012 Nexenta Systems, Inc. All Rights Reserved. +.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved. .\" .TH zfs 8 "Jan 10, 2013" "ZFS pool 28, filesystem 5" "System Administration Commands" .SH NAME @@ -731,7 +732,7 @@ Changing this property affects only newly-written data. .ne 2 .mk .na -\fBcompression\fR=\fBon\fR | \fBoff\fR | \fBlzjb\fR | \fBgzip\fR | \fBgzip-\fR\fIN\fR | \fBzle\fR +\fBcompression\fR=\fBon\fR | \fBoff\fR | \fBlzjb\fR | \fBgzip\fR | \fBgzip-\fR\fIN\fR | \fBzle\fR | \fBlz4\fR .ad .sp .6 .RS 4n @@ -741,6 +742,14 @@ The \fBgzip\fR compression algorithm uses the same compression as the \fBgzip\fR .sp The \fBzle\fR (zero-length encoding) compression algorithm is a fast and simple algorithm to eliminate runs of zeroes. .sp +The \fBlz4\fR compression algorithm is a high-performance replacement +for the \fBlzjb\fR algorithm. It features significantly faster +compression and decompression, as well as a moderately higher +compression ratio than \fBlzjb\fR, but can only be used on pools with +the \fBlz4_compress\fR feature set to \fIenabled\fR. See +\fBzpool-features\fR(5) for details on ZFS feature flags and the +\fBlz4_compress\fR feature. +.sp This property can also be referred to by its shortened column name \fBcompress\fR. Changing this property affects only newly-written data. .RE