ALUA is recommended for those operating systems that support ALUA - Windows 2008, ESX 4.x and higher and some of the  *nix versions. emc99467 (attached) contains the latest recommendations for using ALUA by operating system.  glen
I am attempting to setup Hyper-V 2012 servers and use a CLARiiON CX3-10c unit connected via 4Gb FC for storage on the hosts.  I was kicking around using Microsoft MPIO for multipathing, but I'm gathering it doesn't support any sort of active/active configuration.  I'm trying to see what the best setup is that I can do without investing a bunch of money into something like PowerPath (although I have a couple old licenses I think I got when we first bought this CLARiiON), or if I have no real choice if I want higher throughput with the connection.  I've been searching high and low the last couple days and experimenting some, but at this point I'm in a huge fog on exactly what is possible now.  Can someone give me an idea what is possible without investing a bunch of money in multipathing software?
CLARiiON CX3-10c and Hyper-V 2012 Multipathing