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To: Arun <engineerarun@gmail.com>
Cc: NamJae Jeon <linkinjeon@gmail.com>,
        "Martin K. Petersen" <martin.petersen@oracle.com>,
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Subject: Re: Detection of Advanced Format drives
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Organization: Oracle
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	(Arun's message of "Fri, 17 Feb 2012 00:36:08 +0530")
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>>>>> "Arun" == Arun  <engineerarun@gmail.com> writes:

Arun> [...] couldn't find any direct way of detecting an SSD drive like
Arun> an ioctl.

Arun> Is there any such direct way of detecting SSD drives yet? I am
Arun> working on kernel version 2.6.32-19.

You can check /sys/block/foo/queue/rotational.

The matching BLKROTATIONAL ioctl didn't go in until very recently.

-- 
Martin K. Petersen	Oracle Linux Engineering