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Re: kern/56686: wd(4) device timeouts
The following reply was made to PR kern/56686; it has been noted by GNATS.
From: Andreas Gustafsson <gson%gson.org@localhost>
To: mlelstv%serpens.de@localhost (Michael van Elst)
Cc: gnats-bugs%netbsd.org@localhost
Subject: Re: kern/56686: wd(4) device timeouts
Date: Fri, 4 Feb 2022 15:45:00 +0200
Michael van Elst wrote:
> > [ 5.921953] wd3: <ST5000LM000-2AN170>
>
> ST5000LM000 is a SMR disk, the timeouts might be real and
> the driver might need to wait longer for such hardware.
Agreed. Where is the timeout defined, and does it take the queue
length into account?
> The 'uncorrectable data error' comes from the drive, so
> that's probably real too.
Probably, but I don't see it in the SMART error log:
smartctl 7.2 2020-12-30 r5155 [NetBSD 9.2 amd64] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda 2.5 5400
Device Model: ST5000LM000-2AN170
Serial Number: WCJ46G52
LU WWN Device Id: 5 000c50 0d44f62ec
Firmware Version: 0001
User Capacity: 5,000,981,078,016 bytes [5.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5526 rpm
Form Factor: 2.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-3 T13/2161-D revision 5
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Fri Feb 4 15:41:50 2022 EET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 0) seconds.
Offline data collection
capabilities: (0x73) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 824) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x30a5) SCT Status supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 072 062 006 Pre-fail Always - 74443112
3 Spin_Up_Time 0x0003 096 096 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 37
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 082 060 045 Pre-fail Always - 166162157
9 Power_On_Hours 0x0032 092 092 000 Old_age Always - 7150 (25 38 0)
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 36
183 SATA_Downshift_Count 0x0032 100 100 000 Old_age Always - 0
184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
188 Command_Timeout 0x0032 100 099 000 Old_age Always - 34360262665
189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 072 046 040 Old_age Always - 28 (Min/Max 22/33)
191 G-Sense_Error_Rate 0x0032 099 099 000 Old_age Always - 2867
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 3
193 Load_Cycle_Count 0x0032 001 001 000 Old_age Always - 223651
194 Temperature_Celsius 0x0022 028 054 000 Old_age Always - 28 (0 19 0 0 0)
195 Hardware_ECC_Recovered 0x001a 079 064 000 Old_age Always - 74443112
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 2389 (212 48 0)
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 35963005615
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 14641645157
254 Free_Fall_Sensor 0x0032 100 100 000 Old_age Always - 0
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
--
Andreas Gustafsson, gson%gson.org@localhost
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