I'm getting console printout like this:

Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 35772622
 (wd0 bn 39142366; cn 38831 tn 11 sn 25)
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 35772608
 of 35772608-35772623 (wd0 bn 39142352; cn 38831 tn 11 sn 11), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 35772608
 of 35772608-35772623 (wd0 bn 39142352; cn 38831 tn 11 sn 11), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 35772608
 of 35772608-35772623 (wd0 bn 39142352; cn 38831 tn 11 sn 11), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 35772608
 of 35772608-35772623 (wd0 bn 39142352; cn 38831 tn 11 sn 11), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 35772621
 of 35772608-35772623 (wd0 bn 39142365; cn 38831 tn 11 sn 24), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 35772621
 of 35772608-35772623 (wd0 bn 39142365; cn 38831 tn 11 sn 24)
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 35772621
 (wd0 bn 39142365; cn 38831 tn 11 sn 24), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 36063024
 of 36063024-36063027 (wd0 bn 39432768; cn 39119 tn 12 sn 60), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 36063024
 of 36063024-36063027 (wd0 bn 39432768; cn 39119 tn 12 sn 60), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 36063024
 of 36063024-36063027 (wd0 bn 39432768; cn 39119 tn 12 sn 60), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 36063024
 of 36063024-36063027 (wd0 bn 39432768; cn 39119 tn 12 sn 60), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 36063024
 of 36063024-36063027 (wd0 bn 39432768; cn 39119 tn 12 sn 60), retrying
Jun 27 00:28:00 S /netbsd: wd0e: uncorrectable data error reading fsbn 36063024
 of 36063024-36063027 (wd0 bn 39432768; cn 39119 tn 12 sn 60)

etc



Is there some sort of "scandisk" program to automatically do a surface scan
and try to move the data to another sector (or just mark that sector bad)?

My root is on /wd0a and my /usr is on /wd0e (which is getting the errors).

I looked at bad144 and badsect but they didn't look like exactly the right
programs.

This is, incidentally, an IBM 29G disk about 4 months old.  A little scary to
be developing bad sectors.

Thanks all!  -Mike