We are hosting a set of websites on VM Cloud. These sites were previously on a couple of dedicated servers but to enhance performance, we transferred them onto a Cloud environment.
The Cloud has SSD storage but they are now saying that we have very high IOPS and are goign to degrade us if we do not do anything soon.
We have good PHP Websites but they are run without any Caching.
how do I start to debug this?
Edit: We have two servers where one holds the code while the other holds the databases. But both of them are showing very high (~95%) writes.