On-call rotations want eight engineers For production on-call responsibilities,4 I’ve found that two-tier 24/7 support requires eight engineers. As teams holding their own pagers have become increasingly mainstream, this has become an important sizing constraint, and I try to ensure that every engineering team’s steady state is eight people. Shared rotations. It is sometimes necessary to pool multiple teams together to reach the eight engineers necessary for a 24/7 on-call rotation. This is an effective intermediate step toward teams owning their own on-call rotations, but it is not a good
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