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The BIG EEVblog Server Fire

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drussell:

--- Quote from: duckduck on April 12, 2021, 06:41:00 pm ---
--- Quote from: NiHaoMike on April 12, 2021, 03:04:00 am ---How much can the backup power infrastructure be cut back if there's a system to force all CPUs to minimum frequency when running on backup power?

--- End quote ---

That's a great idea.
--- End quote ---

No, it is not.

You don't randomly force-throttle a server...   :palm:
In many cases that would be just as bad of a scenario and you might as well just have pulled the power.

Ed.Kloonk:

--- Quote from: drussell on April 13, 2021, 03:04:51 am ---
--- Quote from: duckduck on April 12, 2021, 06:41:00 pm ---
--- Quote from: NiHaoMike on April 12, 2021, 03:04:00 am ---How much can the backup power infrastructure be cut back if there's a system to force all CPUs to minimum frequency when running on backup power?

--- End quote ---

That's a great idea.
--- End quote ---

No, it is not.

You don't randomly force-throttle a server...   :palm:
In many cases that would be just as bad of a scenario and you might as well just have pulled the power.

--- End quote ---

Software should tell the hardware what to do, not the other way around.

NiHaoMike:

--- Quote from: drussell on April 13, 2021, 03:04:51 am ---You don't randomly force-throttle a server...   :palm:
In many cases that would be just as bad of a scenario and you might as well just have pulled the power.

--- End quote ---
Why not if the software could recover once things are back to normal? Obviously, you wouldn't do that for critical real time applications like a VoIP server, but for something like a web server, I don't see why the software couldn't be designed to handle it gracefully. Perhaps whether or not a server gets throttled on backup power be something that's reflected in the service fees (perhaps multiple levels that specify how much throttling and for how much time before partial refunds will be provided), I'd imagine that would do a lot to motivate the developers to make their programs able to tolerate it in order to take advantage of cheaper hosting.

drussell:

--- Quote from: NiHaoMike on April 08, 2021, 04:21:51 am ---Are you going to make sure the "backup" will now be in another room or at least several racks away?
--- End quote ---


--- Quote from: NiHaoMike on April 13, 2021, 03:36:03 am ---Why not if the software could recover once things are back to normal? Obviously, you wouldn't do that for critical real time applications like a VoIP server, but for something like a web server, I don't see why the software couldn't be designed to handle it gracefully.
--- End quote ---

Oh, my....   :palm: 

You've obviously never had the joy of running any "real" servers.   :-DD  (even real web servers) 

floobydust:

--- Quote from: Monkeh on April 13, 2021, 01:37:39 am ---What on earth makes you think that's a wooden roof?
--- End quote ---

I see a (modified) bitumen roof with wood fascia. A "fire suppression system" does nothing if that lights up.
It's common problem in building fires here, the roof and trusses (which are above all the sprinklers) can start burning and the fire crawls along the roof. Firefighters have to dump water despite the interior not being on fire at all.
I would think buildings in the UK have similar issues, with flat tar roofs?

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