Thanks to all of the guest speakers on our Sun2Oracle webcast: Steve from Hub City Media, Albert from UCLA and our own Scott Bonell.

During the webcast, we tried to answer as many questions as we could, but there were a few that we needed a bit more time to answer.  Albert from UCLA sent me the following information:

Alternate Directory Evaluation

We were happy with Sun DSEE. OUD, based on the research we had done, was a logical continuation of DSEE.  If we moved away, it was to to go open source.

UCLA evaluated OpenLDAP, OpenDS, Red Hat's 389 Directory. We also briefly entertained Active Directory.

Ultimately, we decided to stay with OUD for the Enterprise Directory, and adopt OpenLDAP for the non-critical edge directories.

Hardware

For Enterprise Directory, UCLA runs 3 Dell PowerEdge R710 servers. Each server has 12GB RAM and 2 2.4GHz Intel Xeon E5 645 processors. We run 2 of those servers at UCLA's Data Center in a semi active-passive configuration. The 3rd server is located at UCLA Berkeley. All three are multi master replicated. At run time, the bulk of LDAP query requests go to 1 server. Essentially, all of our authn/authz traffic is being handled by 1 server, with the other 2 acting as redundant back ups.