Move partition scanning from userspace to module.

[zfs.git] / man / man8 / zfs.8

diff --git a/man/man8/zfs.8 b/man/man8/zfs.8
index 3da2e44..3fd91a9 100644 (file)
--- a/man/man8/zfs.8
+++ b/man/man8/zfs.8
@@ -37,7 +37,7 @@ zfs \- configures ZFS file systems
 
 .LP
 .nf
-\fBzfs\fR \fBsnapshot\fR [\fB-r\fR] [\fB-o\fR \fIproperty\fR=\fIvalue\fR]... 
+\fBzfs\fR \fBsnapshot | snap\fR [\fB-r\fR] [\fB-o\fR \fIproperty\fR=\fIvalue\fR]... 
       \fIfilesystem@snapname\fR|\fIvolume@snapname\fR
 .fi
 
@@ -75,7 +75,7 @@ zfs \- configures ZFS file systems
 .LP
 .nf
 \fBzfs\fR \fBlist\fR [\fB-r\fR|\fB-d\fR \fIdepth\fR][\fB-H\fR][\fB-o\fR \fIproperty\fR[,...]] [\fB-t\fR \fItype\fR[,...]]
-     [\fB-s\fR \fIproperty\fR] ... [\fB-S\fR \fIproperty\fR] ... [\fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR] ...
+     [\fB-s\fR \fIproperty\fR] ... [\fB-S\fR \fIproperty\fR] ... [\fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR|\fIsnap\fR] ...
 .fi
 
 .LP
@@ -128,7 +128,7 @@ zfs \- configures ZFS file systems
 
 .LP
 .nf
-\fBzfs\fR \fBunmount\fR [\fB-f\fR] \fB-a\fR | \fIfilesystem\fR|\fImountpoint\fR
+\fBzfs\fR \fBunmount | umount\fR [\fB-f\fR] \fB-a\fR | \fIfilesystem\fR|\fImountpoint\fR
 .fi
 
 .LP
@@ -148,12 +148,12 @@ zfs \- configures ZFS file systems
 
 .LP
 .nf
-\fBzfs\fR \fBreceive\fR [\fB-vnFu\fR] \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR
+\fBzfs\fR \fBreceive | recv\fR [\fB-vnFu\fR] \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR
 .fi
 
 .LP
 .nf
-\fBzfs\fR \fBreceive\fR [\fB-vnFu\fR] \fB-d\fR \fIfilesystem\fR
+\fBzfs\fR \fBreceive | recv\fR [\fB-vnFu\fR] \fB-d\fR \fIfilesystem\fR
 .fi
 
 .LP
@@ -360,7 +360,7 @@ This property can also be referred to by its shortened column name, \fBavail\fR.
 .ad
 .sp .6
 .RS 4n
-The compression ratio achieved for this dataset, expressed as a multiplier. Compression can be turned on by running: \fBzfs set compression=on \fIdataset\fR\fR. The default value is \fBoff\fR.
+For non-snapshots, the compression ratio achieved for the \fBused\fR space of this dataset, expressed as a multiplier.  The \fBused\fR property includes descendant datasets, and, for clones, does not include the space shared with the origin snapshot.  For snapshots, the \fBcompressratio\fR is the same as the \fBrefcompressratio\fR property.  Compression can be turned on by running: \fBzfs set compression=on \fIdataset\fR\fR. The default value is \fBoff\fR.
 .RE
 
 .sp
@@ -424,6 +424,19 @@ This property can also be referred to by its shortened column name, \fBrefer\fR.
 .ne 2
 .mk
 .na
+\fB\fBrefcompressratio\fR\fR
+.ad
+.sp .6
+.RS 4n
+The compression ratio achieved for the \fBreferenced\fR space of this
+dataset, expressed as a multiplier.  See also the \fBcompressratio\fR
+property.
+.RE
+
+.sp
+.ne 2
+.mk
+.na
 \fB\fBtype\fR\fR
 .ad
 .sp .6
@@ -647,11 +660,15 @@ Changing this property affects only newly-written data.
 .ne 2
 .mk
 .na
-\fB\fBcompression\fR=\fBon\fR | \fBoff\fR | \fBlzjb\fR | \fBgzip\fR | \fBgzip-\fR\fIN\fR\fR
+\fBcompression\fR=\fBon\fR | \fBoff\fR | \fBlzjb\fR | \fBgzip\fR | \fBgzip-\fR\fIN\fR | \fBzle\fR
 .ad
 .sp .6
 .RS 4n
-Controls the compression algorithm used for this dataset. The \fBlzjb\fR compression algorithm is optimized for performance while providing decent data compression. Setting compression to \fBon\fR uses the \fBlzjb\fR compression algorithm. The \fBgzip\fR compression algorithm uses the same compression as the \fBgzip\fR(1) command. You can specify the \fBgzip\fR level by using the value \fBgzip-\fR\fIN\fR where \fIN\fR is an integer from 1 (fastest) to 9 (best compression ratio). Currently, \fBgzip\fR is equivalent to \fBgzip-6\fR (which is also the default for \fBgzip\fR(1)).
+Controls the compression algorithm used for this dataset. The \fBlzjb\fR compression algorithm is optimized for performance while providing decent data compression. Setting compression to \fBon\fR uses the \fBlzjb\fR compression algorithm.
+.sp
+The \fBgzip\fR compression algorithm uses the same compression as the \fBgzip\fR(1) command. You can specify the \fBgzip\fR level by using the value \fBgzip-\fR\fIN\fR where \fIN\fR is an integer from 1 (fastest) to 9 (best compression ratio). Currently, \fBgzip\fR is equivalent to \fBgzip-6\fR (which is also the default for \fBgzip\fR(1)).
+.sp
+The \fBzle\fR (zero-length encoding) compression algorithm is a fast and simple algorithm to eliminate runs of zeroes.
 .sp
 This property can also be referred to by its shortened column name \fBcompress\fR. Changing this property affects only newly-written data.
 .RE
@@ -1235,7 +1252,7 @@ Recursively destroy all dependents, including cloned file systems outside the ta
 Force an unmount of any file systems using the \fBunmount -f\fR command. This option has no effect on non-file systems or unmounted file systems.
 .RE
 
-Extreme care should be taken when applying either the \fB-r\fR or the \fB-f\fR options, as they can destroy large portions of a pool and cause unexpected behavior for mounted file systems in use. 
+Extreme care should be taken when applying either the \fB-r\fR or the \fB-R\fR options, as they can destroy large portions of a pool and cause unexpected behavior for mounted file systems in use.
 .RE
 
 .sp
@@ -1454,7 +1471,7 @@ Recursively rename the snapshots of all descendent datasets. Snapshots are the o
 .ne 2
 .mk
 .na
-\fB\fBzfs\fR \fBlist\fR [\fB-r\fR|\fB-d\fR \fIdepth\fR] [\fB-H\fR] [\fB-o\fR \fIproperty\fR[,\fI\&...\fR]] [ \fB-t\fR \fItype\fR[,\fI\&...\fR]] [ \fB-s\fR \fIproperty\fR ] ... [ \fB-S\fR \fIproperty\fR ] ... [\fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR] ...\fR
+\fB\fBzfs\fR \fBlist\fR [\fB-r\fR|\fB-d\fR \fIdepth\fR] [\fB-H\fR] [\fB-o\fR \fIproperty\fR[,\fI\&...\fR]] [ \fB-t\fR \fItype\fR[,\fI\&...\fR]] [ \fB-s\fR \fIproperty\fR ] ... [ \fB-S\fR \fIproperty\fR ] ... [\fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR|\fIsnap\fR] ...\fR
 .ad
 .sp .6
 .RS 4n