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+'\" t
+.\" Title: vfs_crossrename
+.\" Author: [see the "AUTHOR" section]
+.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
+.\" Date: 01/22/2012
+.\" Manual: System Administration tools
+.\" Source: Samba 3.6
+.\" Language: English
+.\"
+.TH "VFS_CROSSRENAME" "8" "01/22/2012" "Samba 3\&.6" "System Administration tools"
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+vfs_crossrename \- server side rename files across filesystem boundaries
+.SH "SYNOPSIS"
+.HP \w'\ 'u
+vfs objects = crossrename
+.SH "DESCRIPTION"
+.PP
+This VFS module is part of the
+\fBsamba\fR(7)
+suite\&.
+.PP
+The
+vfs_crossrename
+VFS module allows server side rename operations even if source and target are on different physical devices\&. A "move" in Explorer is usually a rename operation if it is inside of a single share or device\&. Usually such a rename operation returns NT_STATUS_NOT_SAME_DEVICE and the client has to move the file by manual copy and delete operations\&. If the rename by copy is done by the server this can be much more efficient\&. vfs_crossrename tries to do this server\-side cross\-device rename operation\&. There are however limitations that this module currently does not solve:
+.PP
+.RS 4
+
+ the ACLs of files are not preserved
+ .RE
+.PP
+.RS 4
+
+ meta data in EAs are not preserved
+ .RE
+.PP
+.RS 4
+
+ renames of whole subdirectories cannot be done recursively,
+ in that case we still return STATUS_NOT_SAME_DEVICE and
+ let the client decide what to do
+ .RE
+.PP
+.RS 4
+
+ rename operations of huge files can cause hangs on the
+ client because clients expect a rename operation to
+ return fast
+ .RE
+.PP
+This module is stackable\&.
+.SH "OPTIONS"
+.PP
+crossrename:sizelimit = BYTES
+.RS 4
+server\-side cross\-device\-renames are only done for files if the filesize is not larger than the defined size in MiB to prevent timeouts\&. The default sizelimit is 20 (MiB)
+.RE
+.SH "EXAMPLES"
+.PP
+To add server\-side cross\-device renames inside of a share for all files sized up to 50MB:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+ \fI[testshare]\fR
+ \m[blue]\fBpath = /data/mounts\fR\m[]
+ \m[blue]\fBvfs objects = crossrename\fR\m[]
+ \m[blue]\fBcrossrename:sizelimit = 50\fR\m[]
+.fi
+.if n \{\
+.RE
+.\}
+.SH "VERSION"
+.PP
+This man page is correct for version 3\&.6\&.0 of the Samba suite\&.
+.SH "AUTHOR"
+.PP
+The original Samba software and related utilities were created by Andrew Tridgell\&. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed\&.