New to VAX (4000/200)

[Patrick Finnegan]

On Sunday 04 May 2008, Antonio Carlini wrote:
> But if you deskin a BA440, the holes in the flanges are clearly
> there to allow rackmounting - what else could they be for?
>
> It looks like on the BA441 you need to slide out the chassis to
> get at the Q-Bus devices and the console connections. The cable
> wiring looks to be "fun". Do you _really_ need one of those?
> Back-to-back BA440s works (or worked for me) and gives you the
> same VUP-density in a rack.

The BA4[34]0/BA213 out of the skins is intended to be mounted in a 
short-depth or telcom rack (eg, a DECserver 500 or CMR53).  The 
BA441/431 version is designed to be mounted in a deep (normal) rack.

Also, mounting BA213-style chassis back-to-back screws up the normal 
front-to-back cooling that you want in a rack.

Also, I haven't measured mine, but I'm pretty sure that the deep rack 
versions (6U maybe?) are less than half the height of the "vertical" 
versions.  They're pretty much a BA213 set on its back, and with the 
drives coming out of where the top of the BA213 chassis used to be.

Pat
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