Data compression is the compacting of info by lowering the number of bits which are stored or transmitted. Thus, the compressed info will take considerably less disk space than the initial one, so extra content can be stored using identical amount of space. You'll find various compression algorithms that function in different ways and with a number of them only the redundant bits are erased, so once the data is uncompressed, there is no decrease in quality. Others remove unnecessary bits, but uncompressing the data at a later time will result in reduced quality in comparison with the original. Compressing and uncompressing content needs a large amount of system resources, especially CPU processing time, therefore each and every hosting platform which uses compression in real time must have ample power to support this feature. An example how data can be compressed is to replace a binary code such as 111111 with 6x1 i.e. "remembering" the number of consecutive 1s or 0s there should be instead of saving the entire code.

Data Compression in Shared Web Hosting

The ZFS file system that operates on our cloud hosting platform employs a compression algorithm identified as LZ4. The aforementioned is a lot faster and better than every other algorithm you will 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. Because the algorithm compresses data quite well and it does that quickly, we are able to generate several backups of all the content stored in the shared web hosting accounts on our servers daily. Both your content and its backups will take reduced space and since both ZFS and LZ4 work very quickly, the backup generation will not affect the performance of the hosting servers where your content will be stored.

Data Compression in Semi-dedicated Servers

The semi-dedicated server plans which we provide are created on a powerful cloud platform which runs on the ZFS file system. ZFS uses a compression algorithm called LZ4 that is better than any other algorithm available on the market in terms of speed and data compression ratio when it comes to processing website 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 disk and as a result, websites running on a platform where LZ4 is present will work quicker. We are able to take full advantage of this feature despite of the fact that it requires quite a considerable amount of CPU processing time as our platform uses numerous powerful servers working together and we don't create accounts on a single machine like many companies do. There is an additional benefit of using LZ4 - given that it compresses data very well and does that very quickly, we can also generate multiple daily backups of all accounts without affecting the performance of the servers and keep them for a whole month. That way, you can always restore any content that you erase by mistake.