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Ticket Resolution Summary Owner Reporter
#658 wontfix Many (long) HDD default timeouts cause data loss or corruption (silent controller resets) Ch.Ris
Description

The default error correction timeouts of many HDDs cause data loss or corruption (so long or disabled that the controller hard resets the drives instead of only marking single blocks as bad). And the smartctl utility is the place to adjust the "scterc" timeouts of HDDs.

Please ship the provided scripts and default udev rule with the smartmontools package, so that they try to configure safe timeouts, depending on the drives capabilities, usage and configuration.

The problem with mismatching default timeouts surfaced through repeated reports about drives being droped from raid arrays, and about a high rate of unrecoverable errors occuring during raid-reconstruction, on the linux-raid mailinglist, but the problem is not limited to redundant disk setups. Many experienced "disk failures" are probably just failures due to mismatched recovery timeout settings.

(The scripts have been posted upstream without response, but it is still a distro resposibility to ensure that installations will have safe defaults. Note that the provided udev rules specific to mdadm are only to be included in the mdadm package.)

RATIONALE

The error recovery (ERC) time of a drive *must* be shorter than the controller timeout.

Otherwise read errors will cause controller resets, leading to direct data loss or, if it is a redundant disk, loss of redundancy and a very high probability of another read error and data loss when re-establishing the redundancy.

If a drive does not support adjusting its ERC timeout, the controller timeout must be increased above the drive's maximal error recovery time. If you don't want that kind of long device timeout, you should look for a drive with SCT ERC timeout support. (smartctl -l scterc /dev/...)

The files are attached at: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780162

#797 fixed MKNSSDRE256GB Mushkin SSD drive not in the database Charles Curley
Description

See attachment.

#905 fixed smartctl does not find MKNSSDTR500GB Charles Curley
Description

On debian 8.9, jessie:

root@jhegaala:~/smartmontools# ./smartctl -i /dev/sda
smartctl 6.6 2017-10-01 r4501 [x86_64-linux-4.9.0-0.bpo.3-amd64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     MKNSSDTR500GB
Serial Number:    MK161018100307954
LU WWN Device Id: 5 888914 307954000
Firmware Version: O1126A
User Capacity:    500,107,862,016 bytes [500 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sun Oct  1 11:52:23 2017 MDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

root@jhegaala:~/smartmontools# ./smartctl -q noserial -x /dev/sda
smartctl 6.6 2017-10-01 r4501 [x86_64-linux-4.9.0-0.bpo.3-amd64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     MKNSSDTR500GB
Firmware Version: O1126A
User Capacity:    500,107,862,016 bytes [500 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sun Oct  1 12:07:04 2017 MDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM feature is:   Unavailable
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Unavailable
ATA Security is:  Disabled, NOT FROZEN [SEC1]
Write SCT (Get) Feature Control Command failed: scsi error badly formed scsi parameters
Wt Cache Reorder: Unknown (SCT Feature Control command failed)

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x04)	Offline data collection activity
					was suspended by an interrupting command from host.
					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: 		(  171) seconds.
Offline data collection
capabilities: 			 (0x71) SMART execute Offline immediate.
					No Auto Offline data collection 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:            (0x0002)	Does not save 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: 	 (   2) minutes.
Conveyance self-test routine
recommended polling time: 	 (   1) minutes.
SCT capabilities: 	       (0x0035)	SCT Status supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     ------   100   100   000    -    0
  5 Reallocated_Sector_Ct   ------   100   100   000    -    0
  9 Power_On_Hours          ------   100   100   000    -    902
 12 Power_Cycle_Count       ------   100   100   000    -    212
160 Unknown_Attribute       ------   100   100   000    -    0
161 Unknown_Attribute       ------   100   100   000    -    98
163 Unknown_Attribute       ------   100   100   000    -    22
164 Unknown_Attribute       ------   100   100   000    -    7087
165 Unknown_Attribute       ------   100   100   000    -    25
166 Unknown_Attribute       ------   100   100   000    -    2
167 Unknown_Attribute       ------   100   100   000    -    5
168 Unknown_Attribute       ------   100   100   000    -    1000
169 Unknown_Attribute       ------   100   100   000    -    100
175 Program_Fail_Count_Chip ------   100   100   000    -    0
176 Erase_Fail_Count_Chip   ------   100   100   000    -    0
177 Wear_Leveling_Count     ------   100   100   050    -    9
178 Used_Rsvd_Blk_Cnt_Chip  ------   100   100   000    -    0
181 Program_Fail_Cnt_Total  ------   100   100   000    -    0
182 Erase_Fail_Count_Total  ------   100   100   000    -    0
192 Power-Off_Retract_Count ------   100   100   000    -    1
194 Temperature_Celsius     ------   100   100   000    -    22
195 Hardware_ECC_Recovered  ------   100   100   000    -    0
196 Reallocated_Event_Count ------   100   100   016    -    0
197 Current_Pending_Sector  ------   100   100   000    -    0
198 Offline_Uncorrectable   ------   100   100   000    -    0
199 UDMA_CRC_Error_Count    ------   100   100   050    -    0
232 Available_Reservd_Space ------   100   100   000    -    100
241 Total_LBAs_Written      ------   100   100   000    -    81822
242 Total_LBAs_Read         ------   100   100   000    -    267695
245 Unknown_Attribute       ------   100   100   000    -    56696
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      1  Comprehensive SMART error log
0x03       GPL     R/O      1  Ext. Comprehensive SMART error log
0x04       GPL,SL  R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x09           SL  R/W      1  Selective self-test log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x24       GPL     R/O     88  Current Device Internal Status Data log
0x25       GPL     R/O     64  Saved Device Internal Status Data log
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log

SMART Extended Comprehensive Error Log Version: 1 (1 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Offline             Completed without error       00%       902         -
# 2  Offline             Completed without error       00%       902         -
# 3  Offline             Completed without error       00%       902         -
# 4  Offline             Completed without error       00%       902         -
# 5  Offline             Completed without error       00%       902         -
# 6  Offline             Completed without error       00%       902         -
# 7  Offline             Completed without error       00%       902         -
# 8  Offline             Completed without error       00%       768         -
# 9  Offline             Completed without error       00%       134         -
#10  Offline             Completed without error       00%       902         -
#11  Offline             Completed without error       00%       901         -
#12  Offline             Completed without error       00%       901         -
#13  Offline             Completed without error       00%       901         -
#14  Offline             Completed without error       00%       901         -
#15  Offline             Completed without error       00%       901         -
#16  Offline             Completed without error       00%       901         -
#17  Offline             Completed without error       00%       901         -
#18  Offline             Completed without error       00%       901         -

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
    6        0    65535  Read_scanning was suspended by an interrupting command from host
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.

SCT Status Version:                  3
SCT Version (vendor specific):       0 (0x0000)
SCT Support Level:                   0
Device State:                        Active (0)
Current Temperature:                     0 Celsius
Power Cycle Min/Max Temperature:     -1/ 0 Celsius
Lifetime    Min/Max Temperature:      0/ 0 Celsius
Under/Over Temperature Limit Count:   0/0

SCT Temperature History Version:     2
Temperature Sampling Period:         1 minute
Temperature Logging Interval:        1 minute
Min/Max recommended Temperature:      0/100 Celsius
Min/Max Temperature Limit:            0/100 Celsius
Temperature History Size (Index):    128 (1)

Index    Estimated Time   Temperature Celsius
   2    2017-10-01 10:00     0  -
 ...    ..(124 skipped).    ..  -
 127    2017-10-01 12:05     0  -
   0    2017-10-01 12:06    22  ***
   1    2017-10-01 12:07     0  -

SCT Error Recovery Control command not supported

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 2) ==
0x01  0x008  4             212  ---  Lifetime Power-On Resets
0x01  0x010  4             902  ---  Power-on Hours
0x01  0x018  6      1067351764  ---  Logical Sectors Written
0x01  0x020  6       124819214  ---  Number of Write Commands
0x01  0x028  6       363839191  ---  Logical Sectors Read
0x01  0x030  6       134848014  ---  Number of Read Commands
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4         1119893  ---  Resets Between Cmd Acceptance and Completion
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4            1363  ---  Number of Hardware Resets
0x06  0x018  4               0  ---  Number of Interface CRC Errors
0x07  =====  =               =  ===  == Solid State Device Statistics (rev 1) ==
0x07  0x008  1               0  ---  Percentage Used Endurance Indicator
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x0001  2            0  Command failed due to ICRC error
0x0002  2            0  R_ERR response for data FIS
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0005  2            0  R_ERR response for non-data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS
0x0008  2            0  Device-to-host non-data FIS retries
0x0009  2            0  Transition from drive PhyRdy to drive PhyNRdy
0x000a  2            3  Device-to-host register FISes sent due to a COMRESET
0x000b  2            0  CRC errors within host-to-device FIS
0x000d  2            0  Non-CRC errors within host-to-device FIS
0x000f  2            0  R_ERR response for host-to-device data FIS, CRC
0x0010  2            0  R_ERR response for host-to-device data FIS, non-CRC
0x0012  2            0  R_ERR response for host-to-device non-data FIS, CRC
0x0013  2            0  R_ERR response for host-to-device non-data FIS, non-CRC

root@jhegaala:~/smartmontools# 
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