This evening I started getting the following error when trying to write to a volume on a SCSI drive: [root at lasiurus /mp3]# touch blah touch: blah: Input/output error This is /dev/sdc12 on /mp3 type ext2 (rw), Other partitions on the same drive are writable no problem. I can't umount it either: [lasiurus:/]$ sudo umount /mp3 umount: /mp3: device is busy Tho I don't know what else is using it, other than maybe SMB shares. What's causing this? How do I find out what's preventing the umount? Suggestions? I don't want to *gasp!* reboot. Thanks, Andy