[tech] Half Height Rack

[Bob Adamson]

It looks like the placement of the rack has been decided by geometry - we 
have to put it next to the left hand rack, otherwise we wont be able to 
slide out servers with rails (we would hit a bench leg). The rack is 
currently sitting in the middle of the clubroom with one set of v20z rails 
on it. We (Frenchie and I) had to move the back posts all the way back due 
to the posts having an S shaped cross-section and sun rails being 
retarded. I think it actually makes things easier to mount too, but we'll 
have to see what happens with the non-railed servers.

How does some time this weekend sound for putting it in?

Bob Adamson
UCC Treasurer

|"Bureaucracy is a challenge to the be conquered with a righteous        |
|attitude, an intolerance for stupidity, and a bulldozer when necessary" |
| ---Peter's Laws                                                        |


On Tue, 20 Apr 2010, Mitch Kelly wrote:

> -I'm not sure what you mean by "full-depth". Are the other racks in the
> server room not full depth? I know we adjusted the rails on the one
> closest to the door so that it would fit the ex-FSI servers properly, but
> the other rack should still have the normal depth.
> trs80: The working definition is "long enough to properly mount the Sun
> v20z servers in".
>
>
> Full depth is 1200mm deep (Back to front)
>
> And yes Deep/Long enough to PROPERLY mount the servers on the rails they are
> supplied with, While keeping 10cm at the back for ventilation.
>
> Mitch
>
> -----Original Message-----
> From: tech-bounces at ucc.gu.uwa.edu.au [mailto:tech-bounces at ucc.gu.uwa.edu.au]
> On Behalf Of Bob Adamson
> Sent: Tuesday, 20 April 2010 1:17 PM
> To: tech at ucc.gu.uwa.edu.au
> Subject: Re: [tech] Half Height Rack
>
> To Summarise:
>
> -The rack Mark has available doesn't have sides or doors.
> trs80: If the rack has a door and sides visibility will be impaired.
>
> Agreed, and this is no different to our current situation
>
> -As others have pointed out, we could just move the posts on the LH rack,
> that presents a problem for the Fugro's.
>
> Not just the Fugros, we would have to move the posts to their extremes,
> which would mean no longer supporting some of the heavier machines, such
> as Maraena, at the back. I don't think this is really an option.
>
> -I'm not sure what you mean by "full-depth". Are the other racks in the
> server room not full depth? I know we adjusted the rails on the one
> closest to the door so that it would fit the ex-FSI servers properly, but
> the other rack should still have the normal depth.
> trs80: The working definition is "long enough to properly mount the Sun
> v20z servers in".
>
> Have you noticed that not a single machine in the right hand rack is
> screwed in at the back? That's because you can't. The posts aren't
> adjustable to a depth that is useful for _any_ of our servers. Why we have
> kept this rack for so long is beyond me.
>
> -The right-hand rack has to be the network rack thanks to the length (or
> lack thereof) of the network cabling to the patch panels. They're
> currently well-positioned at eye-level.
>
> This is the clincher, and if height is _absolutely_ necessary it closes
> our options somewhat.
>
> One other argument I have in favour of this new rack is that it will allow
> us to use rails, which would be nice.
>
> So from what I can tell, we now have three options:
> 1. Replace the middle rack, and have no second aircon
> 2. Replace the right rack, have a second aircon, but patch panel at waist
> level
> 3. Try and find a full height rack to suit our needs (which could take a
> very long time)
>
> Bob Adamson
> UCC Treasurer
>
> |"Bureaucracy is a challenge to the be conquered with a righteous        |
> |attitude, an intolerance for stupidity, and a bulldozer when necessary" |
> | ---Peter's Laws                                                        |
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