MKCODABF(1)MKCODABF(1)NAMEmkcodabf - Make a 'big file' directory tree for Coda
SYNOPSISmkcodabf [-f files-per-dir] [-s hunk-size] [-v] file new-dir
DESCRIPTIONmkcodabf will take an existing large file and produce a directory tree
rooted at new-dir of much smaller files, called hunks. Each hunk,
except the last hunk, will be an integral number of megabytes as con‐
trolled by the -s flag. The number of hunk files and subdirectories in
each directory is controlled by the -f flag. Also, in the directory
new-dir, a meta-data file, named _Coda_BigFile_, will be created so
that new-dir will appear as a large, read only, regular file after
being written to the Coda Distributed File System.
The reason for these 'big files' is to allow one to write a very large
file, one that is larger than the venus cache, to Coda and to be able
to read it back. These are primarily expected to be some kind of media
files which are written once and read many times, often in a sequential
fashion by a media player. For this reason, file is expected to not be
stored in the Coda file tree and new-dir is expected to be in the Coda
file tree.
mkcodabf supports the following options:
-f files-per-dir
The number of hunk files or subdirectories in each directory in
the 'big file' directory tree. The default number is 100
entries per directory.
-s hunk-size
The size of each hunk file in megabytes. The default hunk size
is one megabyte.
-v Print verbose output as each directory and file is created. The
default is to quietly create the directory tree.
BUGS
Currently, only the kernel module for Windows supports 'Big Files'.
AUTHORS
· Philip A. Nelson, August 2006
Coda Distributed File System 11 August 2006 MKCODABF(1)
