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* hdparm 7.3 supports SAT
@ 2007-05-10 21:55 Douglas Gilbert
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From: Douglas Gilbert @ 2007-05-10 21:55 UTC (permalink / raw)
  To: linux-scsi; +Cc: mlord

Mark Lord's hdparm version 7.3 supports the SCSI to ATA
Translation (SAT) pass-through. So if SAT is supported,
this allows hdparm to access ATA (e.g. SATA disks) and
ATAPI (e.g. cd/dvd drives) devices behind SCSI transports.

Note that the SAT layer may be in the kernel (e.g. libata),
in a HBA's firmware (MPT Fusion SAS HBAs) or external.
Also one of those "SCSI transports" might be SATA.

See http://sourceforge.net/projects/hdparm/


Both sdparm and two utilities in sg3_utils used some
tortured syntax to pipe through ATA IDENTIFY (PACKET)
DEVICE responses to 'hdparm --Istdin' prior to hdparm 7.x .
That, in most cases, should no longer be needed.

Doug Gilbert

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