cockroachdb / cockroachdb/cockroach
roachtest: storage: improve testing of "gray" failure modes
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A-storage
C-enhancement
T-storage
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Description
**Is your feature request related to a problem? Please describe.**
We currently have some gaps around our testing of "gray" failures at the storage layer - whereby a disk's IOPs / throughput are constrained, but the disk is not totally unavailable. Such a situation would presumably cause backpressure in various queues, buffers, etc., and Cockroach would be resilient to such failure modes.
**Describe the solution you'd like**
Construct a roachtest that can induce a "gray" failure at the storage layer.
Related to #94373.
Jira issue: CRDB-23789
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