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

[patrick jankowiak]

 >Michael Moroney wrote:
>Also, IDE drives are not hot-swappable.

I was waiting for someone to say that. Woe be to him that hot swaps an 
IDE drive.

Anyway, I removed power completely, took the XP1000 apart, cleaned it, 
reseated all boards and connectors and memory, removed and reinstalled 
the drives, and it is back working again including the offending drive. 
Nothing was found wrong in various mumblings of
ANALYZE /DISK_STRUCTURE
and I backed it up to a spare IDE drive (in case, so I would not step on 
the recent backup on the usual backup disk).

I do not know why it failed to work. There are power glitches here, and 
the UPS died a few months ago so the XP1000 has been banged around a few 
times, it could have upset something.

The UPS is another matter. Whatever happened to them having two or maybe 
four large-ish 12V batteries in the typical 1-2KW UPS? At least they 
could be replaced inexpensively.
But Nooooo.. this pig has 32 of the little 7AH ones. I'm not going to 
expend $600 on batteries when the same KWH of storage is $200 for four 
big 12V AGMs.
And another thing while I am ranting about UPSs. Why do they insist on 
shoving 14.5 volts onto a 12V battery? Float voltage for maximum life is 
13.65V @ 80 deg F. I'll say why. it's so the maximum amount of energy 
can be crammed into the batteries, letting the UPS maker claim a little 
more watt-hours (run time) than if the batteries were properly used. 
Design for fail, then throw away. Sorry I am still not on that bandwagon.

Thanks much to everyone that helped explain this phenomenon and provided 
info on the DQ Driver.

PJ