On Thu, May 10, 2012 at 06:42:13PM +0000, Daniel Pocock wrote: > Ok, so I bought an enterprise grade drive, the WD RE4 (2TB) and I'm > about to add it in place of the drive that failed. > > I did a quick check with smartctl: > > # smartctl -a /dev/sdb -l scterc > .... > SCT Error Recovery Control: > Read: 70 (7.0 seconds) > Write: 70 (7.0 seconds) > > so the TLER feature appears to be there. I haven't tried changing it. > > For my old Barracuda 7200.12 that is still working, I see this: > > SCT Error Recovery Control: > Read: Disabled > Write: Disabled > > and a diff between the full output for both drives reveals the following: > > -SCT capabilities: (0x103f) SCT Status supported. > +SCT capabilities: (0x303f) SCT Status supported. > SCT Error Recovery Control > supported. > SCT Feature Control supported. > SCT Data Table supported. But FYI, the new Seagate Barracuda 3TB ST3000DM001 drives I have here do *not* support this feature. Has Seagate started crippling its consumer-grade drives? root@storage3:~# smartctl -l scterc /dev/sdb smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.3.4-030304-generic] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net Warning: device does not support SCT Error Recovery Control command root@storage3:~# smartctl -l scterc,70,70 /dev/sdb smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.3.4-030304-generic] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net Warning: device does not support SCT Error Recovery Control command root@storage3:~# smartctl -i /dev/sdb -q noserial smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.3.4-030304-generic] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Device Model: ST3000DM001-9YN166 Firmware Version: CC4C User Capacity: 3,000,592,982,016 bytes [3.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Device is: Not in smartctl database [for details use: -P showall] ATA Version is: 8 ATA Standard is: ATA-8-ACS revision 4 Local Time is: Mon May 21 15:16:53 2012 BST SMART support is: Available - device has SMART capability. SMART support is: Enabled The Hitachi Deskstar HDS5C3030ALA630 *does* support scterc. Regards, Brian. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html