linux-kernel - Re: tools support for non-512 byte sector sizes

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Date:	Tue, 29 Jul 2008 14:41:47 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Ric Wheeler <rwheeler@...hat.com>, linux-scsi@...r.kernel.org,
	linux-ide@...r.kernel.org, Jim Meyering <jim@...ering.net>,
	linux-kernel@...r.kernel.org, Jeff Garzik <jeff@...zik.org>,
	Matt Domsch <Matt_Domsch@...l.com>
Subject: Re: tools support for non-512 byte sector sizes

>>>>> "Matthew" == Matthew Wilcox <matthew@....cx> writes:

Matthew> I'll admit to having not tested it with anything other than
Matthew> 512, but it ought to support 4096 byte sectors just fine.  I
Matthew> haven't looked at what would be required to support 520-byte
Matthew> sectors.

I recently added multiple sector support to scsi_debug.  On a recent
kernel you can modprobe scsi_debug sector_size=4096.

I have only tested 4KB but it also supports 1 and 2KB.

-- 
Martin K. Petersen	Oracle Linux Engineering

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