Re: [PATCH 0/1] RFC: Unreliable discard performance can cripple RAID1

From
Martin K. Petersen <hidden>
Date
2015-06-25 01:03:52
quoted
quoted
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"Jes" == Jes Sorensen [off-list ref] writes:
Jes> We already disable discard per default on raid456 in a similar
Jes> manner because some of them unreliably reports discard_zeroes_data
Jes> when they in reality don't.

Jes> If there was a way to reliably detect these things it would be
Jes> fine, unfortunately there isn't.

We whitelist drives that do the right thing now.

-- 
Martin K. Petersen	Oracle Linux Engineering
Thread (1 message) 1 message, 1 author, last reply 2015-06-25
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