I have a SunFire T2000 server which has 2 mirrored disks pairs. The server required an exchange of the system battery. After swaping the battery first no disks were found.
After booting from CD we managed to find the disks, but now one disk is broken and the raidctl reports a failed synchronisation.
The boot process stops now when trying to mount the file systems. The power light of the broken drive is not even blinking.
What is the best way to proceed now ? Fortunately I could live with loosing the data on the drive as it is backed up, but I would like to keep the rest of the data as it contains /etc and get the server booting again.
You can try to boot from a single disk by breaking the mirror. A good info in serverfault itself here.