Xsan 3 not authenticating StorNext FX 2.2 client

Question

I have Xsan MDC running on OSX Server 10.8.2 .... have four Mac Pro clients that are all running OK ... tried to add a Win 7 PC this weekend using StorNext FX2.2 client software .... all seemed to be going well ... the PC can see the LUNS and the StorNext File System but will not mount the RAID even though it's been allocated a Drive letter.
I can ping both machines and the PC can see the LUNS OK ... had Quantum Tech Support on the phone this afternoon and after extensive diagnostic testing (great support btw) we've come to the conclusion that the Mac MDC is not authenticating the PC for some reason and therefore won't allow the XSAN RAID to be physically mounted on the PC.
Have tried disabling the Win 7 Firewall and anti-virus software but that may still be an issue ... whenever I try to run the 'authenticate client' process I keep getting the same error message that the PC is offline or unavailable even though I can ping it and the LUNS on the PC are allocated a drive letter and the StorNext File System is running.
Any ideas on likely cause?
Thanks,
Neil

Answer 1

Yep, the first thing we checked ... it's in the Config folder.
The Quantum support guy went through all the logs today and found an interesting error message:
I also found another error in the MDC logs related to “version mismatch”
12/30/12 16:18:56.395 SL_EVT_CONNECTION_FAIL SL_FRU_SNFS SL_FRU_SNFS minimdc.loc
al fsm[PID=422]: fs 'exaVOL01': Node 192.168.0.3 [10] does not support CaseInsensitive as this file system requires.  Please update the client.
12/30/12 17:18:58.443 SL_EVT_CONNECTION_FAIL SL_FRU_SNFS SL_FRU_SNFS minimdc.loc
al fsm[PID=422]: fs 'exaVOL01': Node 192.168.0.3 [70] does not support CaseInsensitive as this file system requires.  Please update the client.
Got me thinking ... when I create a Volume in Apple XSAN Server, I always leave the case INsensitive option switch on (enabled) .... just wondering if Win 7 can handle case INsensitive?
Could this prevent Win 7 StorNext FX 2.22 mounting the drive even though it can see the LUNS?
Neil