IBM p615 7029-6e3
Five drives each with an OS: AIX 5.1, AIX 5.3, AIX 6.1, SLES 10, SLES 11. No problem booting any of these except SLES 10. If any drives in addition to the SLES 10 are powered up, the SLES 10 boot fails attempting to access the unconfigured drives. For example, SLES 11 boots and Yast shows the boot device /dev/sdb plus the other four devices as /dev/sda, sdc, sdd, and sde. Somehow SLES 10 is trying to do something with these other drives and fails. There must be some setting to at least background whatever it is doing but I cannot figure out what it is. Does this make sense and does anyone have some idea what I can set? I don't want to pull the other drives whenever I need to run SLES 10 (some customers need the older OS for our products) because my DASD backplanes are getting touchy.