Jeremy Chadwick wrote: > On Wed, Nov 18, 2009 at 12:13:32PM +0100, Hans Petter Selasky wrote: >> I'm not sure if this is an USB issue or not. If you get READ/WRITE errors >> and >> the drive simply dies then it might be the case. Else it is a system issue. > > The OP should be able to use smartmontools to obtain SMART stats from > the SATA drive within the USB enclosure. The command will be somewhat > funky, given that the drive is ATA but is mapped through CAM on FreeBSD > and appears as a daX disk. > > I believe the following should work, but I have no way to test: > > smartctl --device=ata -a /dev/da0 > > You should check your console logs (dmesg) before and after running > this command, as there may be sense key errors from CAM which can help > determine if SMART is passed through or not. > > There's mention in the smartctl man page of a device type called "sat" > which is an ATA<->SCSI emulation layer, but I believe it's the Linux > equivalent of our CAM. > > Recent (in the past ~24 hours) commits to the RELENG_8 branch might > provide native capability for smartctl to work without the --type > argument, since mav@ has been improving the CAM layer to work with ATA > disks. >
Does not work for my external Seagate FreeAgent Go 500G USB2.0 drive %smartctl -a /dev/da0 smartctl version 5.38 [i386-portbld-freebsd8.0] Copyright (C) 2002-8 Bruce Allen Home page is http://smartmontools.sourceforge.net/ Device: Seagate FreeAgent Go Version: 102D Device type: disk Local Time is: Wed Nov 18 21:22:01 2009 KRAT Device does not support SMART Error Counter logging not supported Device does not support Self Test logging %smartctl --device=ata /dev/da0 smartctl version 5.38 [i386-portbld-freebsd8.0] Copyright (C) 2002-8 Bruce Allen Home page is http://smartmontools.sourceforge.net/ Smartctl: Device Read Identity Failed (not an ATA/ATAPI device) A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options. %smartctl --device=ata -T permissive /dev/da0 smartctl version 5.38 [i386-portbld-freebsd8.0] Copyright (C) 2002-8 Bruce Allen Home page is http://smartmontools.sourceforge.net/ Smartctl: Device Read Identity Failed (not an ATA/ATAPI device) SMART support is: Ambiguous - ATA IDENTIFY DEVICE words 82-83 don't show if SMART supported. A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
