linux-kernel - Re: [PATCH] block: export SSD/non-rotational queue flag through sysfs

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Date:	Thu, 15 Jan 2009 14:37:36 +0900
From:	Tejun Heo <htejun@...il.com>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
CC:	Michael Tokarev <mjt@....msk.ru>,
	Jens Axboe <jens.axboe@...cle.com>,
	Kay Sievers <kay.sievers@...y.org>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH] block: export SSD/non-rotational queue flag through	sysfs

Hello,

James Bottomley wrote:
> I'm afraid that's pretty much marketing coolaid.  Rotational storage
> will dominate for the forseeable future: just do a simple back of the
> envelope calculation:

Or just compare prices per byte of memory, flash and rotation disk.
They haven't had changed too much during last several years.
Secondary storage which is only slightly cheaper than the primary
storage doesn't have much chance of flying high and far.

Thanks.

-- 
tejun
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