vfs_prealloc — preallocate matching files to a predetermined size
vfs objects = prealloc
This VFS module is part of the samba(7) suite.
vfs_prealloc VFS module preallocates
files to a specified size each time a new file is created. This
is useful in environments where files are of a predetermined
size will be written to a disk subsystem where extending file
allocations is expensive.
This module is stackable.
Preallocate all files with the extension EXT to the size specified by BYTES.
The following suffixes may be applied to BYTES:
K - BYTES is a number of kilobytes
M - BYTES is a number of megabytes
G - BYTES is a number of gigabytes
A process writes TIFF files to a Samba share, and the is known these files will almost always be around 4 megabytes (4194304 bytes):
vfs_prealloc is not supported on all
platforms and filesystems. Currently only XFS filesystems on
Linux and IRIX are supported.