SSD and Price fights - Data Caching

• Another possibility - using SSDs as cache for HDD systems.
• This will place all writes onto the SSDs - which will slowly move them back to the HDDs later on.
• This can be useful for applications that do mostly writes and less reads.
• Of for applications with a small active set (i.e. that read the same set of disk blocks over and over again) - but with an active set too large to fit into a host system's RAM.

Originally written by guy keren