Transfer Online 4.1 -> Online 5.0

Hello, I need some net.wisdom about the best way to transfer a complete ONLINE System from a machine running 4.1 to a machine running 5.0 Current config: Siemens-Nixdorf MX300-30, Online 4.1, root-dbspace mirrored (via the Online-mechanism) ca. 8MB, data-dbspace unmirrored ca. 300 MB New Machine: Siemens-Nixdorf RM400-10, Online 5.0 We haven't decided yet how to configure the disks of the new machine. There will be 3 harddisks with 1GB each. We are currently thinking of using 1 disk for the OS, swap, tmp, and home and the two other disks for online: One as primary and one as mirror, using the OS mirroring mechanisms (not Online's, I was told that using the OS for mirroring is probably faster). Here are my qestions: 1) What is the best way to configure the disks? This machine will primari- ly be used as a database server and maybe secondarily as a file server via NFS (this is of very minor importance). That is why we want to use two disks for Online (raw devices) and one for everything else. Is that a good idea? Should we only configure one large dbspace (rootdbs) or a small rootdbs and one ore more others? Blobs are of no big significance for us, and we should be able to store them in a "normal" dbspace. 2) How do we best transfer our current databases to the new Online system? Of course, we want to preserve current extent/next sizes. I have no idea whether dbexport/import, tbunload/load or even dbunload/load are the best choice. Besides, since I haven't got the 5.0 manuals yet, I don't even know if there are significant differences against 4.1 which I will have to take into account. All I know now that I want to make the transition as quickly as possible, since our current machine is very overloaded and VERY slow :-( All input will be appreciated. I will be happy to post the results of our transition to this group. Regards, Richard -- +----------------------------+-------------------------------------------+ | Dr. Richard Spitz | INTERNET: spitz@ana.med.uni-muenchen.de | | EDV-Gruppe Anaesthesie | Tel : +49-89-7095-3421 | | Klinikum Grosshadern | FAX : +49-89-7095-8886 | | 81366 Munich, Germany | | +----------------------------+-------------------------------------------+