On Thu, 2021-04-01 at 23:52 -0600, Chris Murphy wrote:
It's not an SMR concern, it's making sure the drive gives up on errors faster than the kernel tries to reset due to what it thinks is a hanging drive.
smartctl -l scterc /dev/sdX
That'll tell you the default setting. I'm pretty sure Blues come with SCT ERC disabled. Some support it. Some don't. If it's supported you'll want to set it for something like 70-100 deciseconds (the units SATA drives use for this feature).
One doesn´t and one does:
# smartctl -l scterc /dev/sdd smartctl 7.2 2021-01-17 r5171 [x86_64-linux-5.11.10-200.fc33.x86_64] (local build) Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
SCT Error Recovery Control command not supported
# smartctl -l scterc /dev/sde smartctl 7.2 2021-01-17 r5171 [x86_64-linux-5.11.10-200.fc33.x86_64] (local build) Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
SCT Error Recovery Control: Read: 85 (8.5 seconds) Write: 85 (8.5 seconds)
So I guess the /dev/sde drive is set correctly, right? Or would you recommend disabling SCT ERC for this drive?
poc