We are running 3 PHP web servers with the web directory (including the php files to be ran locally) pulled from a their own local SSD drive. We are deciding wheter to install a SAN to server our web directory from. The main reason for the switch to the SAN is to keep the files in sync and because the SAN is much more stable.
Does anyone have experience with the latency and throughput of a SAN vs a local SSD? Or what kind of performance loss/gain we will get.