[Ocfs2-tools-devel] [PATCH 3/6] mkfs.ocfs2: Update the man page
Sunil Mushran
sunil.mushran at oracle.com
Tue Feb 16 15:54:54 PST 2010
Refresh the man page to reflect the new fs type vmstore and the
new fs features, refcount and xattr.
Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com>
---
mkfs.ocfs2/mkfs.ocfs2.8.in | 43 +++++++++++++++++++++++++++++--------------
1 files changed, 29 insertions(+), 14 deletions(-)
diff --git a/mkfs.ocfs2/mkfs.ocfs2.8.in b/mkfs.ocfs2/mkfs.ocfs2.8.in
index d1f4011..f49a019 100644
--- a/mkfs.ocfs2/mkfs.ocfs2.8.in
+++ b/mkfs.ocfs2/mkfs.ocfs2.8.in
@@ -1,4 +1,4 @@
-.TH "mkfs.ocfs2" "8" "April 2009" "Version @VERSION@" "OCFS2 Manual Pages"
+.TH "mkfs.ocfs2" "8" "February 2010" "Version @VERSION@" "OCFS2 Manual Pages"
.SH "NAME"
mkfs.ocfs2 \- Creates an \fIOCFS2\fR file system.
.SH "SYNOPSIS"
@@ -92,15 +92,18 @@ filesystem types are:
.RS 1.2i
.TP
\fBmail\fR
-Appropriate for file systems which will have many meta data
-updates. Creates a larger journal.
+Appropriate for file systems that will host lots of small files.
.RE
.RS 1.2i
.TP
\fBdatafiles\fR
-Appropriate for file systems which will host a relatively small number
-of very large files. A small journal is selected. Cluster size will be
-at least 128K.
+Appropriate for file systems that will host a relatively small number
+of very large files.
+.RE
+.RS 1.2i
+.TP
+\fBvmstore\fR
+Appropriate for file systems that will host virtual images.
.RE
.TP
@@ -138,6 +141,16 @@ The slot-map is a hidden file on an \fIOCFS2\fR fs which is used to map mounted
.RE
.RS 1.2i
.TP
+\fBmetaecc\fR
+Enables metadata checksums. With this enabled, the file system computes and stores the crc checksum in all metadata blocks. It also computes and stores the error-correcting code (hamming code) in all metadata blocks and uses it to fix single-bit errors in the blocks.
+.RE
+.RS 1.2i
+.TP
+\fBrefcount\fR
+Enables creation of reference counted trees. With this enabled, the file system allows users to create inode-based snapshots and clones known as reflinks.
+.RE
+.RS 1.2i
+.TP
\fBxattr\fR
Enable extended attributes support. With this enabled, users can attach name:value pairs to objects
within the file system. In \fIOCFS2\fR, the names can be upto 255 bytes in length, terminated by the first
@@ -174,7 +187,7 @@ Chooses fewer features but ensures that the file system can be mounted from olde
.RS 1.2i
.TP
\fBdefault\fR
-The default feature set tries to strike a balance between providing new features and maintaining compatibility with relatively recent versions of \fIOCFS2\fR. It currently enables \fBsparse\fR, \fBunwritten\fR and \fBinline-data\fR.
+The default feature set tries to strike a balance between providing new features and maintaining compatibility with relatively recent versions of \fIOCFS2\fR. It currently enables \fBsparse\fR, \fBunwritten\fR and \fBinline-data\fR. It also enables \fBrefcount\fR and \fBxattr\fR for the \fIvmstore\fR volumes.
.RE
.RS 1.2i
.TP
@@ -217,13 +230,15 @@ CENTER ALLBOX;
LI LI LI
LB C C.
Feature Mainline Kernel Version Enterprise OCFS2 Version
-block64 Linux 2.6.29 Not available as yet
-local Linux 2.6.20 OCFS2 1.2 and 1.4
-sparse Linux 2.6.22 OCFS2 1.4
-unwritten Linux 2.6.23 OCFS2 1.4
-inline-data Linux 2.6.24 OCFS2 1.4
+block64 Linux 2.6.29 OCFS2 1.6
+local Linux 2.6.20 OCFS2 1.2, 1.4 and 1.6
+metaecc Linux 2.6.29 Not available as yet
+refcount Linux 2.6.32 OCFS2 1.6
+sparse Linux 2.6.22 OCFS2 1.4 and 1.6
+unwritten Linux 2.6.23 OCFS2 1.4 and 1.6
+inline-data Linux 2.6.24 OCFS2 1.4 and 1.6
extended-slotmap Linux 2.6.27 Not available as yet
-xattr Linux 2.6.29 Not available as yet
+xattr Linux 2.6.29 OCFS2 1.6
.TE
.TS
@@ -252,4 +267,4 @@ Features: sparse inline-data unwritten
Oracle Corporation
.SH "COPYRIGHT"
-Copyright \(co 2004, 2009 Oracle. All rights reserved.
+Copyright \(co 2004, 2010 Oracle. All rights reserved.
--
1.6.3.3
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