http://www.theregister.co.uk/2014/11/07/storage_ssds/
... Unless your workload is very specifically single source, massive
capture, then you should be running SSDs. Even if you are not running
pure SSD, the case for tiered or hybrid storage makes itself.
SSDs are faster. They have way lower latency. They consume less power.
They take up less space.
--
Regards,
Eric Stevens