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object-a 5 hours ago

How big of a challenge are hardware faults and radiation for orbital data centers? It seems like you’d eat a lot of capacity if you need 4x redundancy for everything

aidenn0 3 hours ago | parent | next [-]

You don't need 4x redundancy for everything. If no humans are aboard, you have 2x redundancy and immediately reboot if there is a disagreement.

totetsu 5 hours ago | parent | prev [-]

They dont go into here.. but I thought that NASA also used like 250nm chips in space for radiation resistance. Are there even any radiation resistance GPUs out there?

pclmulqdq 5 hours ago | parent | next [-]

Absolutely not, although the latest fabs with rad-tolerant processors are at ~20 nm. There are FDSOI processes in that generation that I assume can be made radiation-tolerant.

kersplody 4 hours ago | parent | prev | next [-]

NOPE, RAD hardened space parts basically froze on mid 2000s tech: https://www.baesystems.com/en-us/product/radiation-hardened-...

linzhangrun 5 hours ago | parent | prev [-]

It seems not; anti-interference primarily relies on using older manufacturing processes, including for military equipment, and then applying an anti-interference casing or hardware redundancy correction similar to ECC.

tosapple 4 hours ago | parent [-]

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