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Category Archives: Server rooms
Network cable installation
We’re in the midst of refurbishing one of our server rooms, and as part of this we’re installing many network cables. If you didn’t know, network cables have eight wires inside them, and these are twisted into four pairs. So … Continue reading
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Recent problems with network services
A failure of a UPS (uninterruptible power supply) on Wednesday March 25th caused faults on a number of infrastructure machines. This affected most of the services that provide network access in Chemistry, although in most cases only for a short … Continue reading
Posted in Hardware, Server rooms
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Server room update
Some of you may have been following the saga of our server room refurbishment. The main part of the refurbishment has been done for a while and we even took pictures of the process, but we haven’t posted them until … Continue reading
Posted in Network, Server rooms
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Homeward Bound
As part of the ongoing refurbishment of out Unilever server room, we cleared out the room. All of the sticky carpeting has been removed, the floor cleaned and treated to prevent damp seeping in. The old air conditioning has been … Continue reading
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Overtaken by events
We’re doing a complete refurbishment of the Unilever server room this summer. The original plan was to move all the servers out by the end of July in order for work to start in August. The room holds three compute … Continue reading
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Server room refurb: the sticky carpet
This summer we’re hoping to do a major refurbishment on one of our server rooms. The room has a number of things that need fixing, but perhaps the most obvious is the floor. The glue under the carpet tiles has … Continue reading
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A tale of two lifts
We’re currently planning a major reorganisation of one of the two main server rooms in the department, and one of the first things we needed to do is put an additional rack into the room. We had a suitable spare … Continue reading
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The end is nearly in sight
Here are some pictures of dexter, the new compute cluster we’ve been in the process of purchasing, installing, and configuring for the last few months. It’s been a long process but we’re now onto final acceptance testing. It belongs to … Continue reading
Posted in Clusters, Hardware, Server rooms
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Air flow
One of the department’s compute clusters has recently had an increase in usage. The air conditioning in its room is not keeping up with the load and some hot spots have developed. We are going to rearrange the room to … Continue reading
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Thermal paste
We spent a lot of Monday tracking down a problem on one of the servers which hosts several important services, including the department’s remote access services. When the server failed at the weekend the services automatically failed over to another … Continue reading
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