Lun Masking limited to 8 WWWN's?

I have a couple 7TB xServe RAIDs, with each bank of drives configured for (1) RAID 5 array (6 drives, 1 hot swap) & sliced into 6 LUNs. Everything works as expected until I reach 8 entries in the LUN Masking table. The option to add a ninth host is greyed out. If I remove any the the working 8, the options is available again. Is there any work-around for this? The docs don't indicate a restriction on the number of hosts that can be specified. With the above config, the 8 LUN per controller limit is not passed, so I don't understand why the number of hosts is giving a problem.
thx,
Vince

Thanks for the reply. I am using VMware ESX server on the hosts that will be sharing LUNs. It handles the sharing natively, and also handles multi-pathing but the 8 host limit means that I can only have 4 hosts multi-pathed to the xServe.
I'd also like some LUNs to be masked exclusively for other non-ESX servers to avoid contention but the 8 host limit is making that impossible.
I have been very satisified with the xServe RAID so far except in the limitations (6 slices, 8 LUNs, and now 8 hosts for LUN masking). These are artificial limits that would make the xServe a better product if addressed.

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