A solid-state drive is significantly faster than any regular hard-disk drive. This is because a hard-disk drive works by using spinning disks, that can rotate only so fast and the more information is read and written, the sluggish and warmer they become, whereas an SDD operates with modules of flash memory, therefore there aren't any physically moving components. The access speeds for an SSD are considerably higher, which makes this kind of drives an ideal solution every time speed is needed. That's why SSDs are in many cases used for the Operating System on a desktop or notebook and for storing data which is used frequently on web servers. A large number of providers also use a combination of both drives, so they keep the data on hard drives, but they use a couple of SSDs to cache the more often used data and because of this, the data loads a lot quicker while the load on the HDDs is decreased since their disks have to spin less frequently in order to read and write.
SSD with Data Caching in Shared Web Hosting
The cloud platform where we create shared web hosting accounts uses solely SSD drives, so your web apps and static websites will load very quickly. The SSDs are used for files, e-mails and databases, so no matter if you open a page or check for new messages using webmail, the content will load very quickly. In order to ensure even greater speeds, we also use a number of dedicated SSDs that function only as cache. Any content which generates a lot of traffic is copied on them automatically and is afterwards read from them and not from the main storage drives. Of course, that content is replaced dynamically for much better efficiency. What we achieve that way aside from the improved speed is lowered overall load, thus lower potential for hardware failures, and prolonged lifespan of the primary drives, that's one more level of security for any information that you upload to your account.
SSD with Data Caching in Semi-dedicated Hosting
All semi-dedicated hosting accounts that we provide are made on a cloud platform which uses only SSD drives. We don't use HDDs any longer, so your sites will load quickly since we employ SSDs for every aspect of the service - files, databases and email addresses. As some users may host sites that are more popular than others, we also use numerous drives for caching. Our system finds any content which is loaded more frequently and clones it on these drives in order to load it from them. This configuration is used for load-balancing purposes as we make sure that several reading/writing intensive sites will not influence the performance of the rest of the websites which are stored on the same main drive. Using caching drives also raises the lifespan of the main storage SSDs and lowers the chance of disk failures.