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Fix translation for section "application backup" in 12.4.md

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2014-12-29 11:06:44 -08:00
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@@ -4,9 +4,11 @@ In this section, we'll discuss another aspect of application management: data ba
## Application Backup
In most cluster environment, Web applications, the basic need for backup, because this is actually a copy of the code, we are in the local development environment, or the version control system has to maintain the code. But many times, a number of development sites require users to upload files, then we need for these users to upload files for backup. In fact, now there is a suitable approach is to put the needs and site-related files stored on the storage to the cloud storage, so even if the system crashes, as long as we still cloud file storage, at least the data is not lost.
In most cluster environments, web applications do not need to be backed up since they are actually copies of code from our local development environment, or from a version control system. In many cases however, we need to backup data which has been supplied by the users of our site. For instance, when sites require users to upload files, we need to be able to backup any files that have been uploaded by users to our website. The current approach for providing this kind of redundancy is to utilize so-called cloud storage, where user files and other related resources are persisted into a highly available network of servers. If our system crashes, as long as user data has been persisted onto the cloud, we can at least be sure that no data will be lost.
If we do not adopt cloud storage case, how to do a backup site do ? Here we introduce a file synchronization tool rsync: rsync backup site can be achieved in different file system synchronization, If the windows, then, need windows version cwrsync.
But what about the cases where we did not backup our data to a cloud service, or where cloud storage was not an option? How do we backup data from our web applications then? Here, we describe a tool called rysnc, which can be commonly found on unix-like systems. Rsync is a tool which can be used to synchronize files residing on different systems, and a perfect use-case for this functionality is to keep our website backed up.
> Note: Cwrsync is an implementation of rsync for the Windows environment
### Rsync installation