Another answer from a peer of mine... I am going to assume that the SAN is fast (which MUST be verified despite the storage admins claim): - SHP is deprecated as you know. I strongly recommend making it a priority for the customer to use SHC - NAS is probably bad option to use due to I/O issues. I have seen a customer make it work but at greater expense (dedicated hardware/switches and SSD/FLASH) - It’s possible that a binary (on a SAN LUN) may generate the error but the origin of the problem is in the actual data storage (SAN). Enabling splunk debug or using OS tools like dtrace may shed some light on the issue http://www.slashroot.in/san-vs-nas-difference-between-storage-area-network-and-network-attached-storage …Although NAS is a cheaper option for your storage needs. It really does not suit for an enterprise level high performance application. Never ever think of using a database storage (which needs to be high performing) with a NAS. The main downside of using NAS is its performance issue, and dependency on network(most of the times, the LAN which is used for normal traffic is also used for sharing storage with NAS, which makes it more congested)… ... View more