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A comment on I wrote Task Manager and I just remembered something (2020). Parent comment

Re:I wrote Task Manager and I just remembered something (2020) by skibz on Sunday January 16, 2022 @10:27AM (#29956716)
Perhaps the most appropriate term would be fault-tolerant?

https://en.wikipedia.org/wiki/Fault_tolerance

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Re:I wrote Task Manager and I just remembered something (2020) by justsomehnguy on Monday January 17, 2022 @09:27AM (#29966825)
FT usually (at least in IT) implies a way to switch/defer/transfer the task to other node without an interruption (or a very minor degradation) of service.

A synchronious replication of a VM would be an example of a FT service (so it can continue to work without losing the current state). Failover is a process of restoring the operation with losing the current state (so vmware's HA is clearly FO if you dig below the marketing bullshit).

Described behaviour of the Task Manager is not FT, FO or HA.

Other commenters provided good variants, personally I would go with "Graceful Degradation", because it proceeds with a minimal functionality only if there were problems with normal operation.

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