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Space efficiency of a different kind
When your buying a car it's worth opening the boot (that's the trunk for my American friends) and looking at the spare to see what kind it is. Car manufacturers sometimes choose to sacrifice a full spare to save space (or cost). I can understand the motivation, but there is nothing worse than having a flat and then finding that your spare is half the tyre you expected it to be. With low end... [More]
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Can you control the power?
Here is a little test. Check your documentation: Do you know how to power down and power up the equipment in your computer room? If you had to power off your site in a hurry would you know how? If you wanted to script a shutdown, could you do it? Here are some hints and tips that might help you with some of my favourite products: DS8000 The process to power up or down your DS8000 is... [More]
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XIV Gen3 - No optical illusion
Tiny toast or giant hand? It's not an optical illusion. When IBM offered 2 TB drives on the XIV, I thought I was seeing an illusion: the overall power consumption had dropped (not risen). Guess what? With XIV Gen3, power consumption drops yet again. Using worst case power consumption numbers I can see the following maximums: 180 drive XIV Generation 2 with 1 TB drives(79TB usable): 8.4... [More]
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How XIV handles a building power failure
I received a question the other day about how the XIV interacts with a customers building UPS. So I thought I would share my answer with you. The XIV has two separate line cords (there is an option to have four line cords but I am trying not to complicate this). This means the clients building power provides the XIV with two separate power sources. As long as one of those two line cords... [More]
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