Data compression is the compacting of data by lowering the number of bits which are stored or transmitted. Consequently, the compressed information will require considerably less disk space than the initial one, so a lot more content could be stored using identical amount of space. You will find different compression algorithms which work in different ways and with many of them just the redundant bits are deleted, which means that once the information is uncompressed, there's no loss of quality. Others remove unnecessary bits, but uncompressing the data at a later time will lead to lower quality compared to the original. Compressing and uncompressing content needs a significant amount of system resources, particularly CPU processing time, so each and every hosting platform which employs compression in real time must have adequate power to support that feature. An example how information can be compressed is to substitute a binary code such as 111111 with 6x1 i.e. "remembering" the number of sequential 1s or 0s there should be instead of storing the whole code.
Data Compression in Cloud Hosting
The ZFS file system that is run on our cloud hosting platform employs a compression algorithm named LZ4. The aforementioned is substantially faster and better than any other algorithm you can find, especially for compressing and uncompressing non-binary data i.e. internet content. LZ4 even uncompresses data faster than it is read from a hard drive, which improves the overall performance of websites hosted on ZFS-based platforms. As the algorithm compresses data really well and it does that quickly, we are able to generate several backups of all the content kept in the cloud hosting accounts on our servers every day. Both your content and its backups will take less space and since both ZFS and LZ4 work very fast, the backup generation will not influence the performance of the hosting servers where your content will be kept.