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.\" Title: vfs_prealloc
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.\" Manual: System Administration tools
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.TH "VFS_PREALLOC" "8" "10/29/2009" "Samba 3\&.4" "System Administration tools"
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vfs_prealloc \- preallocate matching files to a predetermined size
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\FCvfs objects = prealloc\F[]
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This VFS module is part of the
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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\&.
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This module is stackable\&.
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Preallocate all files with the extension EXT to the size specified by BYTES\&.
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The following suffixes may be applied to BYTES:
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\- BYTES is a number of kilobytes
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\- BYTES is a number of megabytes
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\- BYTES is a number of gigabytes
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A process writes TIFF files to a Samba share, and the is known these files will almost always be around 4 megabytes (4194304 bytes):
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\m[blue]\fBpath = /data/frames\fR\m[]
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\m[blue]\fBvfs objects = prealloc\fR\m[]
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\m[blue]\fBprealloc:tiff = 4M\fR\m[]
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is not supported on all platforms and filesystems\&. Currently only XFS filesystems on Linux and IRIX are supported\&.
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This man page is correct for version 3\&.0\&.25 of the Samba suite\&.
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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\&.