Running SuSE Enterprise version 8. Our dasd is a IBM shark model 2105-F20: this is emulating 3390-3 disk drives. Our tape drives are on a IBM VTS model 3494-B10: this emulates 3590 Magstar tape drives.
Not running VM - please I know, and I hope to get there soon but politics are politics. I have backed up using DFDSS three device units (123d, 123e, 132f). I have root filesystem on 123d. I am running LVM and I have dedicated units 123e, and 132f. When the Linux system was shutdown, (deactivated from the HMC) I varied the units online under OS/390 2.10 and ran the backup. I then varied the units back offline and successfully brought Linux back up. Assuming that I shut down Linux again, if I mirror the device unit 123d (where the root filesystem is located) to another device unit (such as 1116, how can I boot from 138a? Do I need to change the fstab, or the /proc/dasd/devices file? The other two disk units are managed by LVM. Doug
