Hello Waldo,

We have mainframe DASD, 3390 model 3. Configured as minidisk in zVM. We
have mirrored DASD but since the source (production) disk has been
corrupted so is the mirror.

Well, I hope it wasn't an attack because that would mean it's an inside
job. This guest is not connected to the outside world.

Regards, Berry.

D Waldo Anderson schreef:
> I think it would depend on what the physical medium is.  If it's on a
> mainframe DASD volume, it should be  shadowed and DFH should be able to
> recover it.  If it's on a HD, some of the 'low level' formatting programs
> should be able to look at the physical drive to recover it.  On IDE/ATAPI
> drives, an erasure usually only deletes the directory and the blocks are
> untouched.
> Hope this helps, but it sounds like you may have been
> 'attacked'.....successfully.
>
> D  Waldo Anderson
>
>
>

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