Data Mirroring

Rsync is a data mirroring Backup tool under Unix-like systems, and--remote sync can be seen from the name of the software.　　It has the following characteristics: It can be mirrored to save the entire tree and file system.　　It is easy to maintain the original file permissions, time, soft and hard links and so on.　　Install without special permissions.　　Optimized process, high file transfer efficiency.　　You can use RCP, ssh, and so on to transfer files, of course, through a direct socket connection. Support for anonymous transmission, to facilitate the use of Web site mirror image. ...

When we use a server to provide data services on the production line, I encounter two problems as follows: 1) One server does not perform enough to provide enough capacity to serve all network requests. 2) We are always afraid of this server downtime, resulting in service unavailable or data loss. So we had to expand our server, add more machines to share performance issues, and solve single point of failure problems. Often, we extend our data services in two ways: 1) Partitioning data: putting data in separate pieces ...