The term data compression means reducing the number of bits of data that should be saved or transmitted. This can be done with or without the loss of info, so what will be erased at the time of the compression will be either redundant data or unneeded one. When the data is uncompressed afterwards, in the first case the information and its quality shall be the same, whereas in the second case the quality shall be worse. You will find various compression algorithms that are better for various sort of information. Compressing and uncompressing data generally takes plenty of processing time, which means that the server carrying out the action should have sufficient resources to be able to process the data quick enough. One simple example how information can be compressed is to store just how many consecutive positions should have 1 and how many should have 0 within the binary code as an alternative to storing the particular 1s and 0s.
Data Compression in Shared Hosting
The ZFS file system that runs on our cloud web hosting platform employs a compression algorithm named LZ4. The aforementioned is substantially faster and better than every other algorithm you'll 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 Internet sites hosted on ZFS-based platforms. As the algorithm compresses data quite well and it does that quickly, we're able to generate several backups of all the content kept in the shared hosting accounts on our servers on a daily basis. Both your content and its backups will need reduced space and since both ZFS and LZ4 work very fast, the backup generation will not change the performance of the web hosting servers where your content will be stored.
Data Compression in Semi-dedicated Servers
In case you host your sites in a semi-dedicated server account with our firm, you will be able to experience the advantages of LZ4 - the powerful compression algorithm used by the ZFS file system that is behind our advanced cloud web hosting platform. What distinguishes LZ4 from all other algorithms out there is that it has a higher compression ratio and it is considerably faster, in particular when it comes to uncompressing web content. It does that even faster than uncompressed info can be read from a hard drive, so your Internet sites will perform faster. The higher speed comes at the expense of using plenty of CPU processing time, that's not a problem for our platform because it consists of a large number of clusters working together. Along with the improved performance, you will also have multiple daily backups at your disposal, so you will be able to recover any deleted content with a few clicks. The backups are available for an entire month and we can afford to store them since they need significantly less space than traditional backups.