[Info-vax] Problems detected with analyze/disk

[JF Mezei]

Michael Moroney wrote:

> The quickest way to scrozzle a disk like that is a SCSI cluster
> configuration with two hosts and the drive on a SCSI bus, with both hosts
> mounting the disk without belonging to the same (or any) cluster,


One would need to find out if the user has found evidence of actual data
corruption. It is possible that the blocks that are multiply allocated
are only beyond end of file markers and would only start to matter/break
things if the user starts to add data to the both files, at which point
it would strt to overwrite data that is active in the other file.


Considering that the user seems to have a lot of instances of multiply
allocated blocks, one would need to find out which applications have
created files that conflict with bona fide files. or perhaps someone
played with Indexf.sys and undeleted many files whose allocations have
already been given to other files.

The user should really look at who the creators of those files is, who
they belong to, which directory they sit in and try to figure out if
there is something that systematically breaks the file system. Having a
couple of instances of multiply allocated blocks is one thing, but
having so many that you can't post the whole list here is another.