Re: MD and rotational attribute

From: Martin K. Petersen
Date: Sun Feb 26 2012 - 19:18:18 EST


>>>>> "Neil" == NeilBrown <neilb@xxxxxxx> writes:

Neil,

Neil> (I would say that the name 'rotational' is a bug - the issues here
Neil> is really whether seek is fast or slow is it not??... but no
Neil> matter).

Both the ATA and SCSI specs use the term 'rotational' which I guess is
how we ended up with that name.


Neil> What do you think Martin? Should QUEUE_FLAG_NONROT move to
Neil> queue_limits much like QUEUE_FLAG_CLUSTER did?

Absolutely. I posted some patches converting both the nonrot and
discard/secure discard queue flags a while back but they didn't go
in. I'll freshen up the kit and resend...

--
Martin K. Petersen Oracle Linux Engineering
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