Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

We are going to install sdd's as main hdd in all of our pc's.
However, some of them already have an ssd drive that is beeing used as a cache drive.

Should be keep this chace ssd?

It was my though that, currently io does the following:

cpu cache -> ram -> ssd cache -> hdd

But since the hdd will be an ssd as well, is it still benificial to keep the ssd cache? Or does this give extra overhead?

share|improve this question
I don't understand??? – ewwhite Apr 25 '14 at 13:50
@ewwhite you have set a ssd to be used as a cache drive, to speed things up a bit (like hybrid drives) but is it still usefull to use this if the actual hard drive is a ssd? – rik.vanmechelen Apr 25 '14 at 14:11
up vote 1 down vote accepted

No, it is not beneficial because they will be of a similar speed and writing things multiple times. (In fact bigger SSD drives are faster because they use flash in parallel)

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.