Just One Amp

There are times when you do sit up and you notice that things have changed. As the small changes amount - you look around and realise how far you have travelled.

While we tend to use the handy zeroU PDU's that hang at the side of our nice extra deep APC NetShelters, from time to time we find ourselves out of ports and using the older-school 1U power switches again.

I have a mixed relationship with the things... as I have had a history of them failing - however they were very different times, and cabling was... well... these days I would have not tolerate that; in short they fail, and you have to abstract a power switch complete with ears through a braided-nest-of-heavy-gauge-kettle-lead-arse... in a hurry, with the clock ticking. Every one loves that. Not.

Second point of hate was I didn’t used to have the lock down tray they can have, so you can zip tie the things in so you cannot work them loose by breathing too hard hear them. I do these days. Yay.

I digress (what is new). Anyway - I was racking up a new builder, and the port to use was the one within the single U PDU.

Seven of the eight ports were in use. All connected to servers, all ports powered up, all servers on, and running, in production.... AND DRAWING THE PRINCELY SUM OF ONE AMP FOR SEVEN DEVICES.

Okay - sure... it could be almost 2. I get that. However - it wasn’t so very long ago that you would be talking around ONE AMP PER U - so a number like 7 maybe 9 ... you know?

While processor speeds have stayed around the 2 to 3Ghz mark for the period, and the RAM speed from 1000 to 1600 point. Disk latency and throughput much the same (SSD aside). Cores have increased per machine, and power consumption and efficiency have increased exponentially. The density increasing both in terms of computing per host, and hosts per rack. Just wow. Seriously. Wow. 7 devices, sub 2 Amp.

Brutal enterprise computing in save the planet shocker.

That is all.

*Alas the device I plugged in put it up to 3+ it would seem - but you know - the thought was there.


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