The term data compression refers to lowering the number of bits of information that has to be stored or transmitted. This can be achieved with or without the loss of info, so what will be removed throughout the compression will be either redundant data or unnecessary one. When the data is uncompressed subsequently, in the first case the data and its quality will be identical, while in the second case the quality will be worse. You will find different compression algorithms which are more efficient for different sort of information. Compressing and uncompressing data often takes plenty of processing time, which means that the server executing the action must have sufficient resources to be able to process your info quick enough. A simple example how information can be compressed is to store how many consecutive positions should have 1 and how many should have 0 within the binary code rather than storing the particular 1s and 0s.
Data Compression in Shared Hosting
The ZFS file system which runs on our cloud web hosting platform uses a compression algorithm called LZ4. The latter is a lot faster and better than any other algorithm you can find, particularly for compressing and uncompressing non-binary data i.e. internet content. LZ4 even uncompresses data quicker than it is read from a hard drive, which improves the overall performance of websites hosted on ZFS-based platforms. Since the algorithm compresses data really well and it does that very fast, we are able to generate several backup copies of all the content stored in the shared hosting accounts on our servers every day. Both your content and its backups will need less space and since both ZFS and LZ4 work very quickly, the backup generation will not influence the performance of the web hosting servers where your content will be stored.
Data Compression in Semi-dedicated Hosting
The semi-dedicated hosting plans which we offer are created on a powerful cloud hosting platform which runs on the ZFS file system. ZFS uses a compression algorithm called LZ4 that outperforms any other algorithm on the market in terms of speed and compression ratio when it comes to processing web content. This is valid particularly when data is uncompressed as LZ4 does that a lot faster than it would be to read uncompressed data from a hard drive and because of this, websites running on a platform where LZ4 is enabled will function at a higher speed. We're able to take full advantage of this feature regardless of the fact that it needs quite a lot of CPU processing time because our platform uses a number of powerful servers working together and we never create accounts on just a single machine like most companies do. There is a further advantage of using LZ4 - considering that it compresses data very well and does that very quickly, we can also make several daily backup copies of all accounts without influencing the performance of the servers and keep them for an entire month. In this way, you will always be able to bring back any content that you erase by accident.