b=23428 Fix lustre built with --enable-lu_ref

[fs/lustre-release.git] / lustre / doc / tunefs.lustre.8

diff --git a/lustre/doc/tunefs.lustre.8 b/lustre/doc/tunefs.lustre.8
index 7300b1f..16b40a8 100644 (file)
--- a/lustre/doc/tunefs.lustre.8
+++ b/lustre/doc/tunefs.lustre.8
@@ -1,8 +1,8 @@
 .\" -*- nroff -*-
-.\" Copyright 2006 by ClusterFileSystems.  All Rights Reserved.
-.\" This file may be copied under the terms of the GNU Public License.
+.\" Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+.\" This file may be copied under the terms of the GNU Public License, v2.
 .\"
-.TH tunefs.lustre 8 "2006 Jun 15" Lustre "configuration utilities"
+.TH tunefs.lustre 8 "2008 Mar 15" Lustre "configuration utilities"
 .SH NAME
 tunefs.lustre \- modify the Lustre configuration information on a disk
 .SH SYNOPSIS
@@ -43,7 +43,17 @@ The Lustre filesystem this service will be part of.  Default is 'lustre'
 Force a particular OST or MDT index 
 .TP
 .BI \--mountfsoptions= opts
-Set permanent mount options, equivalent to setting in /etc/fstab
+Set  the mount options that will be used when mounting the backing fs.
+WARNING: unlike earlier versions of \fBtunefs.lustre\fR,  this version
+completely replaces the existing mount options with those specified on
+the command line, issuing a warning  on  stderr  if any  of the default
+mount options are omitted.  The defaults for ldiskfs  are
+OST: \fIerrors=remount-ro,mballoc,extents\fR;
+MGS/MDT: \fIerrors=remount-ro,iopen_nopriv,user_xattr\fR.
+\fBDO NOT\fR alter the default mount options unless you know what you are doing.
+.TP
+.BI \--network= net,...
+Network(s) to restrict this ost/mdt to. This option can be repeated as desired.
 .TP
 .BI \--mgs
 Add a configuration management service to this target
@@ -61,13 +71,21 @@ Print less information.
 Print more information.
 .TP
 .BI \--writeconf
-Erase all config logs for the filesystem that this MDT is part of, and
-regenerate them.  This is very dangerous.  All clients and servers should
-be stopped.
-All targets must then be restarted to regenerate the logs.  
+Erase the configuration logs for the filesystem that this server is part of, and regenerate them. This is very dangerous.  All clients must be unmounted and servers for this filesystem should be stopped.  
+All targets (OSTs/MDTs) must then be restarted to regenerate the logs. 
 No clients should be started until all targets have restarted.
-In general this should be executed on the MDT only, not the OSTs.
-
+.br
+Correct order of operations is:
+.br
+* Unmount all clients of this filesystem
+.br
+* Unmount MDT and all OSTs of this filesystem
+.br
+* Run \fBtunefs.lustre --writeconf <device>\fR on every server
+.br
+* Mount MDT and OSTs
+.br
+* Mount clients
 .SH EXAMPLES
 .TP
 .B tunefs.lustre --erase-param --mgsnode=<new_nid> --writeconf /dev/sda
@@ -85,16 +103,16 @@ Upgrade an old 1.4.X Lustre MDT to 1.6, and start with brand-new 1.6
 configuration logs. All old servers and clients must be stopped.
 
 .SH BUGS
-Please report all bugs to ClusterFileSystems, support@clusterfs.com
+Please report all bugs to Sun Microsystems using http://bugzilla.lustre.org/
 .SH AVAILABILITY
 .B tunefs.lustre
 is part of the 
 .BR Lustre (7) 
-filesystem package and is available from CFS
+filesystem package and is available from Sun Microsystems, Inc via
 .br
-http://clusterfs.com
+http://downloads.lustre.org
 .SH SEE ALSO
-.BR Lustre (7),
+.BR lustre (7),
 .BR mkfs.lustre (8),
 .BR mount.lustre (8),
 .BR lctl (8),