25 Sep
2007
25 Sep
'07
6:54 p.m.
Tuesday, September 25, 2007, 6:18:52 PM, you wrote:
Think carefully about deracking the Onyx 10K. It has
special
compression connectors that are very susceptible to small amounts of
dirt -- in particular you should never, ever touch the connector. I
wouldn't want to derack all of that without having had experience
doing it.
In case of the Onyx2 you are right, the boards containing compression
connectors (CPU and GE) need to be handled with special care. On the
other hand I'd expect an Onyx2 to be easier to move as the system
modules should come out of the rack much easier (AFAIK they aren't
much different from the core of a deskside), but maybe I'm mistaken.
When we moved the Onyx2 Reality Monster from the same
location, we did
temporarily derack the topmost card cage in one of the 4 cabinets.
Once the cabinet was back on the truck, we put the cards back in the
rack. The cards themselves are secured into the rack with screws, so
I really don't see them coming loose from road vibration.
Indeed on the Onyx2 cards coming loose shouldn't be an issue.
The Onyx is a VME bus based cabinet and the cards are
simple edge
connectors IIRC.
Back to the Onyx the OP will get.
They are "normal" card edge connectors, but not VME although the size
matches 9U: http://sgistuff.g-lenerz.de/pictures/onyx.php#boards
There are also VME slots included for expansion though.
The trip was 1300 miles on interstate one way, so
I'd say if anything
was going to come loose from road vibration, it would have done it.
Same here, no ill effects of moving hardware in either state:
- disassembled and carefully packed away
- moved as a whole
But that all went well on our trips doesn't mean it goes well on all
roadtrips, I guess.
--
Best regards,
Gerhard mailto:mail at g-lenerz.de
Old SGI Stuff http://sgistuff.g-lenerz.de/