[Info-vax] analyze/disk errors

[JF Mezei]

On 13-12-06 18:31, Simon Clubley wrote:

>>> And some of us "end user" programmers have written ODS-2 readers for fun
>>> in the past (so we can read ODS-2 volumes under other operating systems)

>> But, I would write it on VMS, and, what's the use ???
> 
> There's no point writing it on VMS.


There is if you have a disk that ANA/DISK/REPAIR can't fix and you need
to manually extract critical files.

I had to do something similar but with indexed files that the LD driver
had partly written over. I had to go through the file which had been
partly written over and recover whatever records I could.


Note that ATA drivers do not notify VMS of hardware errors on disks. So
the rror ecount will remain at 0 even when the disk is violently
convulsing and taking its last breaths with the arms all over the place
and unable to read/write any data.