Despite my best efforts, Mercury is still getting slammed with extremely high loads.
I've hired a part time Linux consultant to help. His name is Harry Roberts [http://codeb.us/] and he's already hard at work.
In fact, he quickly discovered that SpamAssassin is basically overloading the hard drive with all the IO work it does updating its Bayesian filters.
As an immediate fix, he's working on moving all the .spamassassin directories on mercury to the second hard drive. We're also looking into a centralized Bayesian database for users who don't train their filters individually.
Hopefully this should lead to some major performance improvements sometime today.
Thanks for your patience.
