vfs_prealloc - preallocate matching files to a predetermined size
vfs objects = prealloc
System Administration tools VFS_PREALLOC(8) NAME vfs_prealloc - preallocate matching files to a predetermined size SYNOPSIS vfs objects = prealloc DESCRIPTION This VFS module is part of the samba(7) suite. The 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. OPTIONS prealloc:EXT = BYTES Preallocate all files with the extension EXT to the size specified by BYTES. The following suffixes may be applied to BYTES: o K - BYTES is a number of kilobytes o M - BYTES is a number of megabytes o G - BYTES is a number of gigabytes EXAMPLES A process writes TIFF files to a Samba share, and the is known these files will almost always be around 4 megabytes (4194304 bytes): [frames] path = /data/frames vfs objects = prealloc prealloc:tiff = 4M CAVEATS vfs_prealloc is not supported on all platforms and filesystems. Currently only XFS filesystems on Linux and IRIX are supported. VERSION This man page is part of version 4.13.17 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. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+-----------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+-----------------------+ |Availability | service/network/samba | +---------------+-----------------------+ |Stability | Volatile | +---------------+-----------------------+ NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://download.samba.org/pub/samba/stable/samba-4.13.17.tar.gz. Further information about this software can be found on the open source community website at http://www.samba.org/. Samba 4.13.17 06/28/2022 VFS_PREALLOC(8)