vfs_crossrename - server side rename files across filesystem boundaries
vfs objects =
This VFS module is part of the samba
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
rename operations of huge files can cause hangs on the client because clients
expect a rename operation to return fast.
This module is stackable.
crossrename:sizelimit = BYTES
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)
To add server-side cross-device renames inside of a share for all files sized up
path = /data/mounts
vfs objects = crossrename
crossrename:sizelimit = 50
This man page is correct for version 4.0.0 of the Samba suite.
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.