eXdupe is backup tool that performs data deduplication at a record breaking 900 MB/s (3 TB/hr) on 8 cores. Example of differential backup:
| exdupe z:\database\ database.full | Backup 2,000 GB. Results in a 1,200 GB database.full file and takes 57 minutes | |
| exdupe -D z:\database\ database.full database.diff1 | Backup again next day. Results in a 65 GB database.diff1 file and takes 44 minutes | |
| exdupe -D z:\database\ database.full database.diff2 | Backup again next day. Results in a 65 GB database.diff1 file and takes 44 minutes | |
| exdupe -RD database.full database.diff2 z:\database | Restore backup from database.diff2 and database.full |
You can also utilize deduplication in a simple file archiver style, outperforming gzip, bzip2, pigz, WinRAR, lzop, 7-Zip, etc, second-to-none for speed and compression ratio:
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It uses the sliding window class of deduplication which yields the best compression ratio in all use cases. Only 64-bit systems are supported, and only Windows 2008, Vista and 7.
November 2011: Released 0.3.3 BETA. Need to tweak it, add a feature or fix a bug? exdupe-033-source.zip. eXdupe will be payware when the beta phase ends, with the source code available under restricted and non-permissive terms.
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| x64 | exdupe.exe | 033-linux-x64.tar | to come | 033-freebsd-x64.tar | to come | to come | 033-macos-x64.tar | ||||||
| POWER | to come | ||||||||||||
| SPARC | 017-linux-sparc.tar | to come | |||||||||||
| Itanium | 017-hpux-itanium.tar |
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full backup: [-arcqtpmg] [-f] [-s] <sources> <destination> [-arcqtpmg] <-stdin> <filename to assign> <destination> <destination> can either be -stdout or a file. Use .full as file extension Differential backup: -D[arcqtp] [-f] [-s] <sources> <.full file> <destination> -D[arcqtp] <.full file> <-stdin> <filename to assign> <destination> <destination> can either be -stdout or a file. Use .diff as file extension Restore full backup: -R[fq] <.full file> <destination directory> [files] -R[fq] <-stdin> <destination directory> [files] is one or more files, drives or directories to restore, typed as provided by -L flag Restore differential backup: -RD[fq] <.full> <.diff file> <destination directory> [files] -RD[fq] <-stdin> <.diff file> <destination directory> [files] is one or more files, drives or directories to restore, typed as provided by -L flag List contents: -L <.full file | .diff file> Flags: -r Do not include sub directories -o Overwrite existing files (default is to abort) -c Continue if a source file cannot be read or does not exist (default is to abort) -p Include named pipes -l On *nix: Follow symlinks (default is to store link only). On Windows: symlinks are always followed - storing link only is not supported -a Store absolute and complete paths (default is to remove the common parent path of items passed on the command line) -s"d:" Use Volume Shadow Copy Service for local drive d: (Windows only) -f"s" Filter files using a script, s, written in the LUA language -gn Use n GB memory for a hash table (default = 1). Use -mn to specify number of MB instead. Use 1 GB per TB data for best compression ratio Differential backups will use the same memory as the full backup -tn Use n threads/cores (default = 6) -vn Use verbose level n for n = 0...9 (default = 7) -- Prefix items in the <sources> list with " --" to exclude them. |
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| copyright 2011 eXdupe.com |