One of our clients called the other day. They had an issue, and in answering the question  "what have you done recently" they mentioned they had run Defrag.Nsf.  Upon further inquiry I learned that this is a third party solution from a company in Australia.  In function it does for a Domino database what Defrag does for a file system.   Our customer reported that it significantly improved (as much as 50%) the loading of libraries and folder views in our Domino based doc mgt solution, Docova.  

The issue was resolved, and had nothing to do with Defrag.Nsf, but I was intrigued so I did some some research and downloaded a trial version of the product.  Will do some benchmark testing and report back.   Worth a look.  Google it to get the link to Preemptive Consulting's site.

PS.  In testing I copied and pasted several documents in a Docova library  (NSF)  that contained large MOV video clips.  When I was done, Domino Administrator reported the Logical size of the database as 64 Gig, but the physical size was only 400 mb.  I had DAOS configured on this test server.  Of course in real life you would not have the same 40 MB attachment copied and pasted hundreds of times, but it sure demonstrated the power of the Domino Attachment Object Store.  Wow!.