Is ARC still limited to 1/2 main memory? I've got a system with 192GB RAM, all it does is NFS/SMB file services, no applications, so I'd be OK with it using more RAM for ARC if that's tunable.

Appears my memory is faulty, looking at arcstats it is indeed using more than 1/2 RAM so I'ma leave well enough alone.

appears to me your faulty memory is ECC -- well done!

Awfully high latency though... :P

sure