Re: [Lsf-pc] [LSF/MM TOPIC] really large storage sectors - going beyond 4096 bytes

From: Martin K. Petersen
Date: Wed Jan 22 2014 - 15:57:27 EST

>>>>> "James" == James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> 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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