Mark Lord wrote:
matthieu castet wrote:
Mark Lord wrote:
matthieu castet wrote:
Hi,
Tejun Heo wrote:
David Greaves wrote:
Error Counter logging not supported
Device does not support Self Test logging
The USB bridge should support SAT (SCSI-ATA translation) and many
don't. Nothing much can be done about it. The hardware just don't
know
how to do it.
That true that the hardware should support SAT, but even if it
support it, linux need some patches to support SAT over USB. See
http://thread.gmane.org/gmane.linux.scsi/43688 and the patch
mentioned in the thread.
...
Ahh.. Great! This mostly fixes smartctl operation on at least two
of my USB drive enclosures here:
1. a recent rev. 2.5" NexStar-3 SATA enclosure.
2. a 250GB 2.5" WD "Passport" external USB drive/enclosure.
With the patch, this command line works for me:
smartctl -a -dsat -T permissive /dev/sdb
And hdparm just works regardless, with or without the patch.
It should work without permissive, permissive was need without the patch.
You said hdparm works without the patch. I wonder how it work. IRRC it
asks check condition stuff for every command. I am interested to see
the hdparm --verbose output without the patch.
..
Mmm... actually, the "-dsat" flag seems to make smartctl mostly work
with and without the patch. This is on 2.6.25.6 on my notebook here.
Some month I'll update the kernel and fix VMware and wireless again
for a newer kernel, but for now that's what it runs.
Here's hdparm --verbose, sans patch:
hdparm --verbose -I /dev/sdb
/dev/sdb:
outgoing cdb: 85 08 2e 00 00 00 00 00 00 00 00 00 00 40 ec 00
SG_IO: ATA_16 status=0x2, host_status=0x0, driver_status=0x8
SG_IO: sb[] = {72 00 00 00 00 00 00 0e}
SG_IO: desc[] = {09 0c .. }
ATA_16 tf->status=0x00 tf->error=0x00
ATA device, with non-removable media
Model Number: Hitachi HTS541612J9SA00
Serial Number: SB2D11E4GESWAB
Firmware Revision: SBDOC74P
..
Here it is again, with the entire returned sense data shown:
hdparm --verbose -I /dev/sdb
/dev/sdb:
outgoing cdb: 85 08 2e 00 00 00 00 00 00 00 00 00 00 40 ec 00
SG_IO: ATA_16 status=0x2, host_status=0x0, driver_status=0x8
SG_IO: sb[] = {72 00 00 00 00 00 00 0e}
SG_IO: desc[] = {09 0c 00 00 50 01 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00}
ATA_16 tf->status=0x00 tf->error=0x00
ATA device, with non-removable media
Model Number: Hitachi HTS541612J9SA00
Serial Number: SB2D11E4GESWAB
Firmware Revision: SBDOC74P
...
I guess it "works" by accident, since the 00 device status
doesn't have the ATA error bit set. But I suppose this also
means that a failed ATA command would not be noticed either..
At least not without the patch.
Cheers
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