From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pim Zandbergen Subject: Re: SMART support for SATA drives in SAS enclosures Date: Thu, 24 May 2007 13:17:03 +0200 Message-ID: <4655742F.8010202@macroscoop.nl> References: <46488711.9020903@macroscoop.nl> <46549AC3.4090105@torque.net> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mondriaan.macroscoop.nl ([82.94.9.2]:3948 "EHLO mondriaan.macroscoop.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755519AbXEXLRN (ORCPT ); Thu, 24 May 2007 07:17:13 -0400 In-Reply-To: <46549AC3.4090105@torque.net> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: dougg@torque.net Cc: linux-scsi@vger.kernel.org Doug, /dev/sdc is indeed a physical SATA disk. sg_sat_identify says: "ATA PASS-THROUGH (16) not supported" I'll look into a firmware update. Thanks, Pim Douglas Gilbert wrote: > Pim Zandbergen wrote: > >> Is SMART support available for SATA drives in SAS enclosures? >> >> I'm testing this setup >> >> LSI Logic SAS3800X PCI-X SAS controller (mptsas driver) >> Promise V-Trak J300S SAS/SATA enclosure/expander >> 12x Seagate ST3500630NS >> Linux kernel 2.6.21.1 x86_64 >> smartmontools-5.37-1.1.fc6 from Fedora Core 6 >> >> "smartctl -i -d sat /dev/sdc" gives me >> >> Smartctl: Device Read Identity Failed >> > > I presume /dev/sdc is an actual disk rather than a > RAID device made up of several disks. The SAT standard > (and smartmontools) don't have a general way of > addressing individual disks behind RAID infrastructure. > > For recent versions of smartmontools version 5.37 and > MPT Fusion SAS HBAs this should work if /dev/sdc is > a SATA disk. Your HBA may need a firmware upgrade. > > > You might fetch sg3_utils version 1.24 and try: > sg_sat_identify /dev/sdc > That needs to work before smartctl has a hope. > > >> Same with "-d ata". >> >> If I treat the disk as SCSI ("-d scsi"), the command >> will not fail, but wil only retrieve the serial number. >> > > With MPT Fusion SAS hardware (that I have seen) the SAT > layer is in the HBA firmware. Only later versions of the > firmware support the SCSI ATA PASS-THROUGH command. > > Doug Gilbert > >