ROIDBA's favorite, LZ4 compression tool, backup recovery no more hours.

Compression ratio, efficiency is very high, as to how to use, send the article tomorrow.

1. Download

http://rpmfind.net/

Search Input: Lz4

Download

Extras testing Packages for Enterprise Linux 6 for x86_64

lz4-1.7.5-1.el6.x86_64.rpm

2. Installation

http://rpmfind.net/

# RPM-IVH lz4-1.7.5-1.el6.x86_64.rpm

# Rpm-qa|grep LZ4

Lz4-1.7.5-1.el6.x86_64

# LZ4--help

LZ4 command Line interface 64-bits v1.7.5, by Yann Collet * * *

Usage:

LZ4 [ARG] [input] [output]

INPUT:A filename

With no file, or when file is-or stdin, read standard input

Arguments:

-1:fast Compression (default)

-9:high compression

-d:decompression (default for. lz4 extension)

-z:force compression

-f:overwrite output without prompting

-k:preserve source Files (s) (default)

--rm:remove source file (s) after successful de/compression

-h/-h:display Help/long Help and exit

Advanced arguments:

-v:display Version number and exit

-v:verbose mode

-q:suppress warnings; Specify twice to suppress errors too

-c:force write to standard output, even if it is the console

-t:test Compressed File integrity

-m:multiple input files (implies automatic output filenames)

-r:operate recursively on directories (sets also-m)

-l:compress using Legacy format (Linux kernel compression)

-b#: Block size [4-7] (Default:7)

-bd:block dependency (improve compression ratio)

--no-frame-crc:disable Stream Checksum (default:enabled)

--content-size:compressed frame includes original size (Default:not present)

--[no-]sparse:sparse mode (default:enabled on file, disabled on stdout)

Benchmark arguments:

-b#: Benchmark file (s), using # compression level (DEFAULT:1)

-e#: Test all compression levels from-bx to # (DEFAULT:1)

-i#: Minimum evaluation time in seconds (default:3s)

-b#: Cut file into independent blocks of size # bytes [32+]

or predefined block size [4-7] (Default:7)

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