Looking to run a SAN attached Solaris 10 10/08 32-bit on an IBM HS20 with two 32-bit Xeon processors. 4GB of memory. I''ve set kernelbase=0x50000000 and seem to be getting fairly decent performance from a 1.5TB ZFS pool, however the system isn''t under any sort of load yet (ZFS performed abysmally -- like 20 times slower until I set the kernelbase parameter!). Obviously from what I''m reading, 64-bit is the recommended way to go.. but is 32-bit better than it used to be? Good enough perhaps? What issues might I run into aside from performance? Anecdotal experiences and/or hard facts appreciated. :-) Worst case I guess I could go out and order some 64-bit processors for these blades. Thanks, Ray