Data compression is the compacting of info by lowering the number of bits that are stored or transmitted. This way, the compressed data requires much less disk space than the initial one, so much more content could be stored on the same amount of space. You can find various compression algorithms that work in different ways and with several of them only the redundant bits are deleted, therefore once the data is uncompressed, there's no loss of quality. Others delete unnecessary bits, but uncompressing the data subsequently will lead to reduced quality compared to the original. Compressing and uncompressing content consumes a huge amount of system resources, in particular CPU processing time, therefore every web hosting platform that uses compression in real time needs to have enough power to support that attribute. An example how info can be compressed is to substitute a binary code such as 111111 with 6x1 i.e. "remembering" how many consecutive 1s or 0s there should be instead of keeping the entire code.
Data Compression in Cloud Hosting
The compression algorithm employed by the ZFS file system which runs on our cloud hosting platform is called LZ4. It can enhance the performance of any site hosted in a cloud hosting account on our end because not only does it compress data more effectively than algorithms employed by alternative file systems, but it also uncompresses data at speeds which are higher than the hard disk reading speeds. This is achieved by using a great deal of CPU processing time, which is not a problem for our platform considering that it uses clusters of powerful servers working together. One more advantage of LZ4 is that it allows us to generate backups at a higher speed and on reduced disk space, so we shall have a couple of daily backups of your databases and files and their generation won't influence the performance of the servers. That way, we can always restore any kind of content that you could have removed by mistake.