I recently turned on DAOS (Domino Attachment Object Service) on a Domino server following Paul Mooney's wonderful step-by-step instructions
The server is the cluster mate of a production mail server. It is intended primarily for failover and availability when the main server is down for service so the hardware is minimal. But it did have two physical disks -- one for the operating system (Windows) and one for Domino. So I was able to route the transaction logging files to C: and not have it impact Domino.
The Domino data drive contains primarily mail and CRM databases. The drive was down to 8GB free on a 128GB drive. After turning on DAOS, with the DAOS directory on the same drive as the data directory, and waiting for the files to compact the drive now has 54GB free!
Thank you Lotus.
P.S. The primary production server has plenty of free disk space left. It appears to not be a good candidate for DAOS primarily because of transaction logging. It has a single very large RAID5 array holding both the Windows and Domino partitions. My understanding is that transaction logging would cause a big performance hit in that configuration.
David N Schaffer November 15th, 2009 01:58:37 PM
Glad the instructions were useful. Running txn logging on the same raid 5 array will hurt disk performance. A lot. My question to you is how fast is the server now and is it worth the hit?
If your server is expandable, I would suggest throwing in another array for the txn files.
Paul: The main server is already a bit slow so I'm holding off on txn/DAOS until we can upgrade the hardware. We do have lots of spare disk space since we had sized the box for Domino Document Manager, then moved all those files to a separate server running Quickr.
DAOS was a real life saver on the clustser server. I realized that the CRM mail log sometimes contains dozens or hundreds of instances of the same attachment. It's now logical size 5.3GB, physical 688MB! Saw similar reductions on some large mail files.
Thanks again for a great presentation at TriState LUG and for the instructions.