>>>>> "James" == James Bottomley <james.bottom...@hansenpartnership.com> writes:

>> or even (not today, but some day) reject the IO.

James> I really doubt this.  All 4k drives today do RMW ... I don't see
James> that changing any time soon.

All consumer grade 4K phys drives do RMW.

It's a different story for enterprise drives. The vendors appear to be
divided between 4Kn and 512e with RMW mitigation.

-- 
Martin K. Petersen      Oracle Linux Engineering
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