vfs_syncops
	8
	Samba
	System Administration tools
	4.1
	vfs_syncops
	Ensure meta data operations are performed synchronously.
	
		vfs objects = syncops
	
	DESCRIPTION
	This VFS module is part of the
	samba
	7 suite.
	
	Some filesystems (even some journaled filesystems) require that a
	fsync() be performed on many meta data operations to ensure that the
	operation is guaranteed to remain in the filesystem after a power
	failure. This is particularly important for some cluster filesystems
	which are participating in a node failover system with clustered
	Samba. On those filesystems the vfs_syncops VFS module
	provides a way to perform those	operations safely.
	
	This module is stackable.
	CONFIGURATION
	
	Most of the performance loss with the vfs_syncops
	VFS module is in fsync on close(). You can disable that with
	syncops:onclose = no that can be set either globally
	or per share.
	
	
	On certain filesystems that only require the last data written to be
	fsync()'ed, you can disable the metadata synchronization of this module with
	syncops:onmeta = no. This option can be set either
	globally or per share.
	
	
	The vfs_syncops VFS module can also be disabled
	completely for a share with syncops:disable = true.
	
	EXAMPLES
	Add syncops functionality for [share]:
        
	/data/share
	syncops
	no
	VERSION
	This man page is correct for version 4.1.0 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.