[tech] Machine Room Cooling Issues

[Matt Johnston]

Which one's the SAN? I think that might be the hot shelf I was thinking of...

Matt 

Bob Adamson <bob at ucc.gu.uwa.edu.au> wrote:

>On Thu, 10 Mar 2011, Matt Johnston wrote:
>
>> On Thu, Mar 10, 2011 at 10:58:19PM +0800, Bob Adamson wrote:
>> > Regarding the aircon situation, maybe an extra *two* 15A sockets
>are in 
>> > order, or perhaps it would be better to just amalgamate some
>machines. I 
>> > think that deserves a new thread if someone has some ideas.
>> 
>> Put a power meter on things, see what's generating the most
>> heat, and throw out the loser. I reckon those old disk
>> arrays would be the hottest item at the moment. Are they
>> worth keeping?
>> 
>> Could the UPS be kept outside the machineroom?
>> 
>> Matt
>> 
>
>I'm not sure if I'm comfortable with the power supply for the servers 
>being easily accessible to curious freshers...
>
>The old disk array still has some stuff on it but that can be moved to
>the 
>SAN and the array retired - it's only using 35G afaict, but it in
>reality 
>it isn't all that hot. The SAN is pretty warm, but the current setup 
>doesn't really permit us to disconnect an entire shelf, and removing 
>unused disks will only make it hard to cool the remaining disks.
>
>Other things that we can maybe turn off/do:
>
>-Martello. What services still run on that btw, and do we want to 
>retire/repurpose it completely?
>
>-Heathred. Move the heathred software and name to meimei's hardware,
>then 
>retire the P4 xeon heathred's running on. Meimei was good for cameron
>hall 
>3d, but it's totally underutilised now. With a new network card (the 
>current one crashes under load), I reckon it would make a great upgrade
>to 
>heathred.
>
>-Mermaid. [TRS] pointed me at a fantastic nano board that satisfies all
>
>the criteria for the new dispense box - more to come on this, but the 
>current mermaid box is *very* hot (especially the disks for some
>reason)
>
>-Pomona. A club owned box that I claimed, can move to a VM somewhere as
>
>long as I still have access to the SAN. It is however, a sun V20Z, so I
>
>would feel a little sad if the hardware were going to waste.
>
>-Meersau. Is a boring dual P4 Xeon running debian, and all it does is
>run 
>the thin terminals, do a little build-botting, and generate heat. Could
>
>another server run those services instead?
>
>-Coconut. Is our core switch, and runs *very* hot - not much we can do 
>about that afaik.
>
>-Some server that some guy from ITS has in there. That's long past its 
>departure time in my opinion, and it's the first thing that should go 
>before a single UCC server is touched.
>
>[BOB]