Reset HBA in Red Hat?
My master (RH 4/NBU 6) is normally attached to four fiber-channel LTO-3 drives. I was trying to do some troubleshooting of a tape drive that's not normally attached, and moved the cable over to that drive. But I guess the OS "knows" that it's a different drive and doesn't display it for me. In fact, moving the cable back to the original drive didn't show the original.
If I do 'mt -f /dev/nst1 status', I now just get Input/output error.
I'm sure a reboot will fix things, but I have a *long* running backup that I don't want to kill. Right now none of the local drives are in use. Is there any way of resetting the tape driver or something to bring this drive back without having to reboot the box? It's a qlogic qla2xxx FC driver in use if that makes a difference.
Thanks!
--
Darren