The term data compression refers to decreasing the number of bits of info that has to be stored or transmitted. This can be achieved with or without losing information, so what will be deleted during the compression will be either redundant data or unnecessary one. When the data is uncompressed afterwards, in the first case the data and its quality will be the same, whereas in the second case the quality shall be worse. You will find different compression algorithms that are more effective for different kind of information. Compressing and uncompressing data usually takes lots of processing time, so the server performing the action needs to have plenty of resources in order to be able to process your info fast enough. One simple example how information can be compressed is to store how many consecutive positions should have 1 and how many should have 0 inside the binary code as an alternative to storing the particular 1s and 0s.
Data Compression in Cloud Hosting
The ZFS file system that operates on our cloud hosting platform employs a compression algorithm called LZ4. The aforementioned is considerably faster and better than every other algorithm you will find, particularly for compressing and uncompressing non-binary data i.e. web 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 really well and it does that very quickly, we can generate several backup copies of all the content stored in the cloud hosting accounts on our servers daily. Both your content and its backups will need reduced space and since both ZFS and LZ4 work extremely fast, the backup generation will not change the performance of the servers where your content will be stored.
Data Compression in Semi-dedicated Servers
The ZFS file system that runs on the cloud platform where your semi-dedicated server account will be created uses a powerful compression algorithm called LZ4. It is one of the best algorithms out there and certainly the best one when it comes to compressing and uncompressing website content, as its ratio is very high and it can uncompress data faster than the same data can be read from a hard drive if it were uncompressed. This way, using LZ4 will accelerate any site that runs on a platform where the algorithm is present. The high performance requires a lot of CPU processing time, which is provided by the numerous clusters working together as a part of our platform. What's more, LZ4 enables us to generate several backup copies of your content every day and keep them for one month as they'll take much less space than typical backups and will be generated much quicker without loading the servers.