VFS_FILEID - Online Linux Manual PageSection : 8
Updated : 04/11/2016
Source : Samba 3​.6
Note : System Administration tools

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NAMEvfs_fileid − Generates file_id structs with unique device id values for cluster setups

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SYNOPSISvfs objects = fileid

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DESCRIPTIONThis VFS module is part of the samba(7) suite​. Samba uses file_id structs to uniquely identify files for locking purpose​. By default the file_id contains the device and inode number returned by the stat() system call​. As the file_id is a unique identifier of a file, it must be the same on all nodes in a cluster setup​. This module overloads the SMB_VFS_FILE_ID_CREATE() operation and generates the device number based on the configured algorithm (see the "fileid:algorithm" option)​.

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OPTIONSfileid:algorithm = ALGORITHM Available algorithms are fsname and fsid​. The default value is fsname​. The fsname algorithm generates device id by hashing the kernel device name​. The fsid algorithm generates the device id from the f_fsid returned from the statfs() syscall​. fileid:mapping = ALGORITHM This option is the legacy version of the fileid:algorithm option, which was used in earlier versions of fileid mapping feature in custom Samba 3​.0 versions​.

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EXAMPLESUsage of the fileid module with the fsid algorithm: [global] vfs objects = fileid fileid:algorithm = fsid

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VERSIONThis man page is correct for version 3​.2 of the Samba suite​.

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AUTHORThe 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​. 0

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Johanes Gumabo

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Online Linux Manual Page   :   Version   :   Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.29
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