Data compression is the compacting of info by lowering the number of bits that are stored or transmitted. Because of this, the compressed info takes much less disk space than the initial one, so more content could be stored on identical amount of space. There're many different compression algorithms that function in different ways and with a lot of them only the redundant bits are removed, which means that once the information is uncompressed, there is no decrease in quality. Others erase unneeded bits, but uncompressing the data following that will result in lower quality in comparison with the original. Compressing and uncompressing content takes a large amount of system resources, and in particular CPU processing time, therefore any Internet hosting platform which employs compression in real time must have ample power to support that feature. An example how data can be compressed is to replace a binary code such as 111111 with 6x1 i.e. "remembering" what number of sequential 1s or 0s there should be instead of saving the whole code.
Data Compression in Shared Web Hosting
The ZFS file system that runs on our cloud web hosting platform employs a compression algorithm called LZ4. The latter is a lot faster and better than every other algorithm you can find, especially for compressing and uncompressing non-binary data i.e. web content. LZ4 even uncompresses data faster than it is read from a hard drive, which improves the performance of websites hosted on ZFS-based platforms. Since the algorithm compresses data very well and it does that very quickly, we can generate several backups of all the content stored in the shared web hosting
accounts on our servers every day. Both your content and its backups will require less space and since both ZFS and LZ4 work very fast, the backup generation will not change the performance of the hosting servers where your content will be kept.
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's among the best algorithms out there and definitely the best one when it comes to compressing and uncompressing website content, as its ratio is very high and it'll uncompress data at a higher speed than the same data can be read from a hard drive if it were uncompressed. In this way, using LZ4 will accelerate any site that runs on a platform where this algorithm is enabled. The high performance requires a lot of CPU processing time, which is provided by the great number of clusters working together as part of our platform. In addition, LZ4 allows us to generate several backup copies of your content every day and keep them for a month as they'll take a smaller amount of space than standard backups and will be created considerably faster without loading the servers.