4 ms·
For the AZs that's slightly complicated by the fact that at least for AWS, they are randomised (your eu-west-1a isn't necessarily the same as mine), so it might
by sofixa 4y ago
For the AZs that's slightly complicated by the fact that at least for AWS, they are randomised (your eu-west-1a isn't necessarily the same as mine), so it might be pretty much impossible to actually check for actual overlap even if you know one DC is used by both Google and Oracle. Spreading out regions seems more appropriate to increase redundancy.
- BillinghamJ 4y agoYour own mappings are available in the console and on the API. So definitely still possible to tell
- deleted 4y ago[deleted]
- dgl 4y agoAmazon does provide a way to map to the real availability zone: https://docs.aws.amazon.com/ram/latest/userguide/working-with-az-ids.html https://docs.aws.amazon.com/ram/latest/userguide/working-wit... It's also not appropriate in all cases to spread out, for example the nearest zones to London are around ~7ms away in mainland Europe.
- klohto 4y agoThe provided info is only relative to AWS. If you wanna map geographical destination across clouds you’re out of luck unless you have reports with precise location available. Generally, AWS already provides certain assurances that AZs are spread out.
- formerly_proven 4y agoI didn't know this, but it makes perfect sense and randomizing the a/b/c is a tried and true solution - e.g. in the electrical grid, L1/2/3 are rotated for each customer, because people tend to connect more stuff to L1 on average.
- thunderrabbit 4y ago> people tend to connect more stuff to L1 on average. I just plug into the wall socket and it works. How could I choose to connect things to L2?
- aetherspawn 4y agoIf your property has 3 phase power, chances are your single phase breakers are just on some random phase (picked by your electrician) ie phase 1. Because phase 1 is picked so often, they actually rotate the phases at the street ie switch 1 2 3 with 3 1 2 to avoid having ie 300% more load on phase 1 and having the grid just die.
- terom 4y agoHopefully not 123 -> 312 but e.g 231. AFAIK phase order matters for e.g. three-phase motors, they will spin in the wrong direction if wired with the phases in the wrong order.
- gerdesj 4y agoOurs are called red, green and blue which helps avoid all on P1.
- Majestic121 4y agoI wonder if there can still be a statistical discrepancy due to the electrician favorite color. It seems blue is strongly favored by psychology students for example : https://www.livescience.com/34105-favorite-colors.html https://www.livescience.com/34105-favorite-colors.html