7 Nov
2018
7 Nov
'18
5:43 p.m.
On 11/6/18, Dave Horsfall <dave(a)horsfall.org> wrote:
Bad blocks? I think I have an article in AUUGN where I proposed that bad
blocks be assigned (somehow) to a pseudo-file as inode #0 (or -1?); that
way, the "dump" utility would not see it, and neither would the FS tools
(but a disk image would, of course).
That is how VMS handles bad blocks. When the system detects them,
they are allocated to file BADBLK.SYS;1 in the volume's root
directory. Of course, these days the disk hardware controller handles
bad blocks. The VMS engineering group once got a bug report
complaining that when a privileged user issued the command "type
dba0:[000000]badblk.sys" there were scads and scads of bad block error
messages.
"Doctor, it hurts when I do this...."
-Paul W.