Date: Thu, 26 May 2016 18:39:09 +1000 From: Peter Jeremy <peter@rulingia.com> To: Gary Jennejohn <gljennjohn@gmail.com> Cc: current@freebsd.org Subject: Re: Recognizing SMR HDDs Message-ID: <20160526083909.GJ6157@server.rulingia.com> In-Reply-To: <20160526084253.6588938f@ernst.home> References: <20160526084253.6588938f@ernst.home>
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--AptwxgnoZDC4KQWS Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2016-May-26 08:42:53 +0200, Gary Jennejohn <gljennjohn@gmail.com> wrote: >Now that ken@ has checked in the SMR code I'm wondering how I can see >whether it's having any effect. camcontrol(8) has been enhanced with SMR options and there's a new zonectl(8) command - these should be able to report whether the drive is recognized as a host-aware or host-managed SMR drive. I believe that drive-managed SMR drives don't admit to anything. >Does the fact that the drive appears as a /dev/daX play any role? USB drives are handled via the SCSI CAM layer rather than as SATA drives. It's possible that either the umass(4) driver or your USB to SATA adapter are not correctly handling the relevant commands. --=20 Peter Jeremy --AptwxgnoZDC4KQWS Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQJ8BAEBCgBmBQJXRrYtXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRFRUIyOTg2QzMwNjcxRTc0RTY1QzIyN0Ux NkE1OTdBMEU0QTIwQjM0AAoJEBall6Dkogs0bZYQAJ+x3P6nIyDmYKaNweZSG4oX CdwNTVRGthlaNQLay+SmCCQmck/dtkT0GtA7X5aoSZWb9XAIbu/D7wZMBeQHHzTs GGYZHX/VsmTHdqlFWnpCVekO8ik3nEc6qgyMUdLMpGmG5lTha2Eatu/k40OzO/0g B1gp+JY0fpnMbpVdW52GYq/CDDfda1ZAHV0z3S+bziN7W9fNpJ/cTybOfhcIOa/B uPEU64pAi/nzm1xCJrqXtjOdHIAGFH65tz9Gc8q9ko/XmqNIadXJrOH8QEoqRc8S oUtqxzW6sGkoIEyb8mnSWeIPumUJbuTo+4hhM4cRYItT5JPVbVdPv1ioenacRP+2 SIv35jmo6oJaM/axHpKDUrsWV1dCL9Hy5KB8ek+l6jXAybDNcbcwkMFekDJGTKoS 41n3Iu8AHrQ93UPZfhQnYzQMT5sbeQo66uk69pSeeLtqdHmGu97jZ9NYM6O01I9L JrhvwOHMdWnuH+2SoxiHJgciGwpVpNvuICIfkjEIj3tORCsmj/zkVImIxSKKntdq mXh6XxT8aFSbhbrIeifWN6dE738VQhaXcuFz9HhmeL4cx6DbBovDw91z4AM51q+g 8bIUXqGaxOgN3f2Ofb/w4dyhx86efsN3tXemm3Cqo12SmWgt/45l+BcrZqmRk7mp W2WYdcoEcONlohUucDol =JJXQ -----END PGP SIGNATURE----- --AptwxgnoZDC4KQWS--
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