I've gone crazy looking for vmware documents about SAS storage (SAN) with no luck.

Are SAS SANs proven enough for been reliable enough for a critical service? If so, is there any VmWare documentation available?

If you need some background for answering the question here it is.

We have a customer with an absolutely critical service, i mean, the service fails for one hour amd their IT is fired, and customer words are "money is not a problem, i want a reliable solution".

When talking with he customer before the planing we came to the point he was going to start with 8 high performance virtual servers with FT. He would add aditional virtual machines later. Several of those 8 provide the critical service i said before.

Having all of that into account, we choosed to use a FC SAN because of its performance, reliability and for being a proven and mature product.

The problems comes when the customer ears of SAS SANs and ask why not use it. The problem is that we have no VmWare oficial information about it to compare.

Could anyone let me know why or not use SAS? Or at least provide som documentation?

Thanks in advance