Why is the rsync of Linux learning an essential tool for operations?

Source: Internet
Author: User
Tags rsync
Rsync is an open source, fast and versatile tool that enables simultaneous, full-scale, incremental, local or remote data backup, and is one of the essential skills of operations personnel. What is the characteristic of rsync that makes it such a place?

What's the nature of 1.Rsync?

1) Support copying special files, such as connection files, devices, etc.

2) Exclude specified file or directory synchronization, equivalent to tar for packaging commands

3) Keep the source file or directory permissions, time, soft and hard links, owners, groups and all other properties do not change-p

4) Incremental synchronization, that is, only synchronizing the changed data, high data transfer efficiency, tar-n

5) Use Rcp,rsh,ssh and other methods to coordinate the transfer of files

6) Can transfer files and data via socket

7) Support anonymous or authenticated process mode transmission, it can make the data backup and image easily and safely.

What are the advantages of 2.Rsync?

1) Incremental backup, socket support, centralized backup

2) remote shell Channel mode can be encrypted transmission, the socket needs to be encrypted transmission

What are the disadvantages of 3.Rsync?

1) A large number of small files are synchronized, longer than the event, and sometimes the rsync process may stop

2) Large file synchronization, 10G of large files may sometimes have the problem of interruption, incomplete synchronization before the hidden files

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Why is the rsync of Linux learning an essential tool for operations?

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