Two presentations were given at the March technical meeting.

First, Svetozár Kapusta gave an update on activities for the physics database services. He started by describing the work on Active Data Guard, which is a very promising technology that the LHC Experiments are looking forward to using. He then presented two different tests: Compression tests and ACFS (ASM Clustered File System) tests. The first one will be highly useful as the LHC Experiments would preferably like to have most or even all their data online/read-only. Finally he updated us on activities related to Oracle Streams. Thanks to the fix for an outstanding bug, the task of resynchronising with a disconnected site is now greatly simplified.

In the second presentation, Eric Grancher presented Oracle and the storage IOs. He highlighted first that new tools such as Dtrace change the way to track IO operations. Then he emphasized that, somewhat surprisingly, Oracle IO views cannot see correctly an overload of the CPU. And finally, he explained that there are lots of differences between the use of flash SSD and ordinary disks. The biggest difference is seen in IO write operations per second. This presentation will be given at the CHEP’09 conference next week in Prague.

Both presentations are available on the openlab Web site.

Mélissa Le Jeune presented the list of papers, presentations and publications that will go into the Annual Report. She received several additions from the people present.

Finally, Sverre Jarp thanked the audience and announced that the next Minor Review Meetings will take place on April, 21^st, May, 19^th and June, 16^th.

Charlotte-Anaïs Cornaton, Sverre Jarp