A solid-state drive is considerably quicker than any standard hard-disk drive. This is because an HDD uses rotating disks, which can rotate only so fast and the more info is read and written, the slower and hotter they get, whereas an SDD takes advantage of modules of flash memory, therefore there are no actually moving parts. The access speeds for an SSD are drastically higher, which makes this kind of drives the right solution when speed is needed. This is the reason why SSDs are often used for the Operating System on a home PC and for keeping data that's accessed repeatedly on servers. A large number of service providers also use a combination of both drives, so they keep the data on HDDs, but they use several solid-state drives to cache the more often used data and because of this, the data loads faster while the load on the HDDs is reduced as their disks need to spin less frequently in order to read and write.
SSD with Data Caching in Hosting
The cloud platform where we create hosting accounts uses solely SSD drives, so your web applications and static websites will load very fast. The SSDs are used for files, e-mail addresses and databases, so regardless if you open a page or check for new e-mails with webmail, the content will load promptly. In order to ensure even greater speeds, we also use multiple dedicated SSDs that work only as cache. All content that generates a lot of traffic is copied on them automatically and is afterwards read from them and not from the primary storage drives. Of course, that content is replaced dynamically for better efficiency. What we achieve in this way in addition to the improved speed is reduced overall load, thus decreased chance of hardware failures, and longer lifespan of the primary drives, that's one more level of protection for any data that you upload to your account.