Pre SP5 I had been tuning nss memory on 4gb systems by hardcoding the nss
minbuffers and turning off cachebalance. Because the servers would get low
on logical space---but not crash or hose up.

Is that still advisable with SP5----or should I just set nss back to 85%.
The servers are only used for ldap and IDM. Edir is hardcoded to 700mg-1gb
and user space is limited on the boxes I can.