[Info-vax] Nonexistent IDE/ATAPI disk, is online, file-oriented device, shareable, available to cluster, error logging is enabled.

Michael Moroney moroney at world.std.spaamtrap.com
Thu Mar 12 08:28:53 EDT 2009


patrick jankowiak <eccm at swbell.net> writes:

>You might find this console dump humorous.

>Only VMS would insist that a disk is nonexistent yet online and 
>available. I guess that means it is still there in the XP1000's bay. 8-P

That's always bothered me about VMS and the IDE driver.

Rather than scan for potential devices and _not_ creating a UCB/device
if it finds nothing responding, for some reason it creates one anyway
but marks it as a "Nonexistent IDE/ATAPI disk".  Other drivers would
possibly reverse mods made to the IO database and return a potential UCB
to pool.  You don't see 8 or 16 "Nonexistent SCSI disk"s if you happen
to have an unused SCSI adapter in your system, for example.




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