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VFS_CROSSRENAME(8)	   System Administration tools	      VFS_CROSSRENAME(8)

NAME
     vfs_crossrename - server side rename files across filesystem boundaries

SYNOPSIS
     vfs objects = crossrename

DESCRIPTION
     This VFS module is part of the samba(7) suite.

     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:

	 The ACLs of files are not preserved,

	 meta data in EAs are not preserved,

	 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,

	 rename operations of huge files can cause hangs on the  client  because
	 clients expect a rename operation to return fast.

     This  module is not fully stackable. It can be combined with other modules,
     but should be the last module in the vfs objects list. It	directly  access
     the files in the OS filesystem.

OPTIONS
     crossrename:sizelimit = BYTES
	 server-side  cross-device-renames  are only done for files if the file-
	 size is not larger than the defined size in MiB  to  prevent  timeouts.
	 The default sizelimit is 20 (MiB)

EXAMPLES
     To  add  server-side  cross-device  renames inside of a share for all files
     sized up to 50MB:

		 [testshare]
	      path = /data/mounts
	      vfs objects = crossrename
	      crossrename:sizelimit = 50

VERSION
     This man page is part of version 4.23.8 of the Samba suite.

AUTHOR
     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.

Samba 4.23.8			   08/01/2026		      VFS_CROSSRENAME(8)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=vfs_crossrename&sektion=8&manpath=FreeBSD+Ports+15.1.quarterly>

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