Walter Vermeir wrote:
I have read news about a power problem in the USA. Is there a backup power system for the Wikipedia servers and there conection to the internet?
Yes. The servers are in San Diego, CA, so the current crisis has not affected them in any way. But of course, a future crisis could affect them.
But the server facility has multiple backup power sources. My understanding is as follows:
1. The server co-location facility has two redundant connections to different parts of the local grid, to protect against a highly localized failure due to unauthorized digging and the like.
2. In the event of power failure anyway, there is apparently battery backup for a sufficient time for the generators to get going.
3. There are two redundant generators in case one fails to start.
4. There is enough fuel on-site to run for 12 hours (I think), and the facility has a "2 hour" contract with local suppliers so that they can call and get more fuel delivered within 2 hours.
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None of this is an absolute guarantee, of course, but it's pretty good.
--Jimbo