Disk Mounting Question, related to existing 2-drive mirror

[ncswi]

Hi folks,

I'm a mid-level Unix guy and just recently experimented with RAID.

I have an existing 2-drive mirror established.

sdb: nvidia, "nvidia_dbbdghea", mirror, ok, 976773166 sectors, data@ 0
sda: nvidia, "nvidia_dbbdghea", mirror, ok, 976773166 sectors, data@ 0


I would like to add a third drive (outside of the mirror) and mount it for non-critical storage/backup.

sdc1 -> /backup

Can this be done?

I've added the drive, performed a mkfs, mounted the drive, and added to /etc/fstab. But on reboot the system complains it cannot find it and forces me to single-user mode with only option to reboot. I disconnect the drive and can boot fine.

Remember, my understanding of RAIDs is minimal at this point. Maybe I'm trying to do something that cannot be done?

Thanks in advance.

[corysmith]

forces me to single-user mode with only option to reboot.

If you can't troubleshoot from single user mode, boot to linux rescue mode. If you don't have an install CD, there are lots of tutorials on creating rescue cds.

From there run:

fdisk -l

You can post the results if you like, but what we are looking for is to see if your /dev/sda... drive assignments change when you plug in the third drive.