NAME

       vfs_ceph - Utilize features provided by CephFS

SYNOPSIS

       vfs objects = ceph

DESCRIPTION

       This VFS module is part of the samba(8) suite.

       The vfs_ceph VFS module exposes CephFS specific features for use by Samba.

       Ceph is a distributed network file system designed to provide excellent performance,
       reliability, and scalability. This is a shared library allowing applications to access a
       Ceph distributed file system via a POSIX-like interface.

       This module can be combined with other modules, but it should be the last module in the
       vfs objects list. Modules added to this list to the right of the ceph entry may not have
       any effect at all.

       vfs_ceph performs mapping between Windows and POSIX Access Control Lists (ACLs). To ensure
       correct processing and enforcement of POSIX ACLs, the following Ceph configuration
       parameters are automatically applied:

                     client acl type = posix_acl
                     fuse default permissions = false

CONFIGURATION

       vfs_ceph requires that the underlying share path is a Ceph filesystem.

                     [share]
                     vfs objects = ceph
                     path = /non-mounted/cephfs/path
                     kernel share modes = no

       Since vfs_ceph does not require a filesystem mount, the share path is treated differently:
       it is interpreted as an absolute path within the Ceph filesystem on the attached Ceph
       cluster. In a ctdb cluster environment where ctdb manages Samba,
       CTDB_SAMBA_SKIP_SHARE_CHECK=yes must be configured to disable local share path checks,
       otherwise ctdb will not reach a healthy state.

       Note that currently kernel share modes have to be disabled in a share running with the
       CephFS vfs module for file serving to work properly.

OPTIONS

       ceph:config_file = path
           Allows one to define a ceph configfile to use. Empty by default.

           Example: ceph:config_file = /etc/ceph/ceph.conf

       ceph:user_id = name
           Allows one to explicitly set the client ID used for the CephFS mount handle. Empty by
           default (CephFS uses the process id).

           Example: ceph:user_id = samba

VERSION

       This man page is part of version 4.16.4-Ubuntu 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.