cpddumbfs(8)
| CPDDUMBFS(8) | ddumbfs | CPDDUMBFS(8) |
NAME
cpddumbfs - command line tools to copy from and to a offline ddumbfs filesystem
SYNOPSIS
cpddumbfs [options] source target
DESCRIPTION
cpddumbfs copy from and to an offline ddumbfs filesystem
One and only one of the source or target must be inside the ddfsroot directory.
OPTIONS
- -h, --help
- show this help message and exit
- -v, --verbose
- display addresses and hashes from file (download only)
- -l, --lock_index
- lock index into memory (increase speed for large file)
- -c, --check
- check file integrity in exit code (download only)
- -f, --force
- download a file even if the header is corrupted or if bad blocks are found.
EXAMPLE
usage:
$ cpddumbfs -l /data/ddumbfs/ddfsroot/data /tmp $ cpddumbfs /tmp/data /data/ddumbfs/ddfsroot
REMARKS
cpddumbfs is single threaded. If you have a multi-core CPU, cpddumbfs will be slower than copying files to the online filesystem. By default ddumbfs mount the filesystem with a pool of thread used to calculate block hash in parallel. When downloading file from the offline filesystem, cpddumbfs is as fast as the mounted filesystem.
SEE ALSO
ddumbfs(1), mkddumbfs(8)
AUTHOR
Alain Spineux <alain.spineux@gmail.com>
AUTHOR
Alain Spineux
COPYRIGHT
2011, Alain Spineux
| January 11, 2013 | 1.0 |