[Info-vax] Attempt to shadow IDE disk hangs DS10L

[Rob Brooks]

moroney at world.std.spaamtrap.com (Michael Moroney) writes:
> If I recall, SWAPPER is waiting for the "valid" bit to be set on the
> system disk UCB at this point, and for whatever reason, SHADOWING is not
> setting it.  Look at the system disk UCB and see if it's set or not.
> 
> Also, I don't believe IDE disks are supported with SHADOWING, however I
> don't remember why not.

They don't support forced error -- dev$v_nofe is likely set.

However, I didn't think that prevented a device from joining a shadow
set; I thought it just made it more likely to be expelled when the driver tried 
to replicate an error.


-- 

Rob Brooks    CFE -- Marlborough, MA		brooks!cuebid.usa.hp.com