<< We do not use HP's Mirror/iX product but these
databases do reside on an EMC mirrored disks. The Symm Manager software
that monitors the EMC box is showing very little disk activity. >>
How does the EMC stuff work - presumably it has to
intercept all disk updates and post
them across to another volume. So could this
process be bottlenecking your system even though it doesn't
show much disk activity ?