flur@duke.gatech.edu (Peter W. Flur) (05/08/90)
I've taken two old optical disks and re-formatted them using the disk utility. When I try to write large files (~60M) to them for backup, I get the following messages relatively frequently. Could someone explain what it means and how to correct the problem? May 7 12:45:31 duke mach: od0a: read failed (linear encoder failed) block 104440 phys block 105752 (10758:0:8) May 7 12:45:31 duke mach: od0?: write re-spin (invalid or unimplemented command) block 0 phys block 0 (4149:0:0) May 7 12:45:55 duke mach: od0a: read re-spin (linear encoder failed) block 105176 phys block 106488 (10804:0:8) May 7 12:46:10 duke mach: IO error on pageout: error = 5. May 7 12:46:10 duke mach: vnode_pageout: failed! May 7 12:46:31 duke mach: od0a: write re-spin (linear encoder failed) block 104408 phys block 105720 (10756:0:8) May 7 12:47:14 duke mach: od0a: write re-spin (linear encoder failed) block 105120 phys block 106432 (10801:0:0) May 7 12:47:17 duke mach: od0a: write re-spin (linear encoder failed) block 10 Thanks, Peter