Computer Hangs with MDADM

oneillium · April 2, 2015, 3:09pm

Hello,

I have a software raid using mdadm that is giving me trouble. Here is my current configuration:

Asrock board
2x Xeon 2620v2
32gb ddr3 1600 ecc
radeon r9 290 video card with an r7 240 as a second for additional displays
500gb Samsung 840 EVO as system SSD (separate home partition with encrypted XFS, and root file system as encrypted BTRFS)
4x 4TB HDD’s, set up as mdadm RAID5 and formatted with an encrypted ext4 file system

The raid array always needs to be remounted on startup. I stop the array with:

mdadm --stop /dev/md0

and reassemble it using:

mdadm --assemble --scan --force -v

And the array is reassembled fine. During the reassembly, it will clear a “faulty” flag on two of the drives. All of these drives are less than a year old and pass SMART.

I have done some limited troubleshooting. The computer seems to function fine if the array is not started. I ran prime95 for >24hrs to make sure CPU or memory failure wasn’t the cause, with no errors. When the array is mounted, the computer will function fine for around 24-48 hrs, give or take a bit, and then hang the entire operating system. Usually attempting to unlock sesson results in a blank black screen. Also, another symptom is that the HDD LED will remain solid on. Hard reset is necessary to regain control of system.

This is my first time running a mdadm array and I recently transitioned this computer from Windows to Linux. Any help is certainly appreciated! Let me know if any other information such as logs, etc are necessary.

hcvv · April 2, 2015, 3:53pm

A lot of useful information, except on which version of openSUSE this is happening

oneillium · April 2, 2015, 5:09pm

Sorry!

OpenSuse 13.2 64-bit
Kernel Version 3.16.7-7-desktop
KDE version: 4.14.6

Also I forgot to mention: When I do smartctl, it says bad blocks are present for two of the four drives. Are these automatically not being used or is further action necessary? If further action is necessary, am I incurring data loss now and should checck all of the backups?

Edit: 4 drives, not 3

gogalthorp · April 2, 2015, 6:13pm

bad sectors indicate a failing drive. This is probably the reason for you problems

oneillium · April 2, 2015, 9:18pm

Even if it passes smart? Isn’t there a way to mark the bad blocks so they are not used? I thought I saw a solution to mark bad blocks when I was searching to find a fix, but I wasn’t successful implementing it. (probably due to my inexperience)

gogalthorp · April 2, 2015, 9:30pm

If smart shows bad blocks they are bad. smart will remap bad blocks with the reserved block until they no longer exist. at that point the drive is on it’s way out.

Maybe show use the output of smartctl someone can tell you if you are misreading it.

oneillium · April 2, 2015, 9:53pm

Sure:

Drive #1:
smartctl 6.3 2014-07-26 r3976 [x86_64-linux-3.16.7-7-desktop] (SUSE RPM)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model: ST4000VN000-1H4168
Serial Number: Z3011B76
LU WWN Device Id: 5 000c50 0652b9c2b
Firmware Version: SC43
User Capacity: 4,000,787,030,016 bytes [4.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5900 rpm
Form Factor: 3.5 inches
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ACS-2, ACS-3 T13/2161-D revision 3b
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Apr 2 15:49:11 2015 EDT
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: ( 107) 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: ( 535) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x10bd) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control 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 117 099 006 Pre-fail Always - 150447504
3 Spin_Up_Time 0x0003 092 092 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 89
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 076 060 030 Pre-fail Always - 43220980
9 Power_On_Hours 0x0032 091 091 000 Old_age Always - 8750
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 89
184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0
187 Reported_Uncorrect 0x0032 098 098 000 Old_age Always - 2
188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0
189 High_Fly_Writes 0x003a 001 001 000 Old_age Always - 174
190 Airflow_Temperature_Cel 0x0022 060 050 045 Old_age Always - 40 (Min/Max 23/41)
191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 77
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 89
194 Temperature_Celsius 0x0022 040 050 000 Old_age Always - 40 (0 16 0 0 0)
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 8
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 8
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0

SMART Error Log Version: 1
ATA Error Count: 2
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It “wraps” after 49.710 days.

Error 2 occurred at disk power-on lifetime: 7953 hours (331 days + 9 hours)
When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were:
ER ST SC SN CL CH DH

40 51 00 ff ff ff 0f Error: UNC at LBA = 0x0fffffff = 268435455

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name

60 00 08 ff ff ff 4f 00 10:26:08.974 READ FPDMA QUEUED
60 00 08 ff ff ff 4f 00 10:26:08.974 READ FPDMA QUEUED
60 00 08 ff ff ff 4f 00 10:26:08.974 READ FPDMA QUEUED
60 00 10 ff ff ff 4f 00 10:26:08.974 READ FPDMA QUEUED
60 00 08 ff ff ff 4f 00 10:26:08.974 READ FPDMA QUEUED

Error 1 occurred at disk power-on lifetime: 7953 hours (331 days + 9 hours)
When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were:
ER ST SC SN CL CH DH

40 51 00 ff ff ff 0f Error: UNC at LBA = 0x0fffffff = 268435455

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name

60 00 00 ff ff ff 4f 00 10:26:04.634 READ FPDMA QUEUED
60 00 00 ff ff ff 4f 00 10:26:04.634 READ FPDMA QUEUED
60 00 00 ff ff ff 4f 00 10:26:04.626 READ FPDMA QUEUED
60 00 00 ff ff ff 4f 00 10:26:04.626 READ FPDMA QUEUED
60 00 00 ff ff ff 4f 00 10:26:04.620 READ FPDMA QUEUED

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.

Drive #2:
smartctl 6.3 2014-07-26 r3976 [x86_64-linux-3.16.7-7-desktop] (SUSE RPM)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Seagate Desktop HDD.15
Device Model: ST4000DM000-1F2168
Serial Number: Z302KEW5
LU WWN Device Id: 5 000c50 079a0e403
Firmware Version: CC54
User Capacity: 4,000,787,030,016 bytes [4.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5900 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2, ACS-3 T13/2161-D revision 3b
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Apr 2 15:50:27 2015 EDT
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: ( 107) 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: ( 520) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x1085) SCT Status supported.

SMART Attributes Vendor Specific ID# ATTRIBUTE_NAME 1 Raw_Read_Error_Rate 3 Spin_Up_Time 4 Start_Stop_Count 5 Reallocated_Sector_Ct 7 Seek_Error_Rate 9 Power_On_Hours 10 Spin_Retry_Count 12 Power_Cycle_Count 183 Runtime_Bad_Block 184 End-to-End_Error 187 Reported_Uncorrect 188 Command_Timeout 189 High_Fly_Writes 190 Airflow_Temperature_Cel 191 G-Sense_Error_Rate 192 Power-Off_Retract_Count 193 Load_Cycle_Count 194 Temperature_Celsius 197 Current_Pending_Sector 198 Offline_Uncorrectable 199 UDMA_CRC_Error_Count 240 Head_Flying_Hours 241 Total_LBAs_Written 242 Total_LBAs_Read Data Structure revision number: 10
SMART Attributes with Thresholds:
FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
0x000f 117 099 006 Pre-fail Always - 123178320
0x0003 092 092 000 Pre-fail Always - 0
0x0032 100 100 020 Old_age Always - 67
0x0033 100 100 010 Pre-fail Always - 0
0x000f 069 060 030 Pre-fail Always - 9944335
0x0032 100 100 000 Old_age Always - 849
0x0013 100 100 097 Pre-fail Always - 0
0x0032 100 100 020 Old_age Always - 67
0x0032 100 100 000 Old_age Always - 0
0x0032 100 100 099 Old_age Always - 0
0x0032 100 100 000 Old_age Always - 0
0x0032 100 100 000 Old_age Always - 0 0 0
0x003a 100 100 000 Old_age Always - 0
0x0022 063 054 045 Old_age Always - 37 (Min/Max 23/37)
0x0032 100 100 000 Old_age Always - 0
0x0032 100 100 000 Old_age Always - 11
0x0032 099 099 000 Old_age Always - 2037
0x0022 037 046 000 Old_age Always - 37 (0 22 0 0 0)
0x0012 100 100 000 Old_age Always - 0
0x0010 100 100 000 Old_age Offline - 0
0x003e 200 200 000 Old_age Always - 0
0x0000 100 253 000 Old_age Offline - 653h+05m+18.908s
0x0000 100 253 000 Old_age Offline - 5720588680
0x0000 100 253 000 Old_age Offline - 27190750556

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.

oneillium · April 2, 2015, 9:53pm

Drive #3:
smartctl 6.3 2014-07-26 r3976 [x86_64-linux-3.16.7-7-desktop] (SUSE RPM)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Seagate Desktop HDD.15
Device Model: ST4000DM000-1F2168
Serial Number: Z302HAV4
LU WWN Device Id: 5 000c50 0798f96e5
Firmware Version: CC54
User Capacity: 4,000,787,030,016 bytes [4.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5900 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2, ACS-3 T13/2161-D revision 3b
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Apr 2 15:51:40 2015 EDT
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: ( 107) 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: ( 492) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x1085) SCT Status 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 119 099 006 Pre-fail Always - 209747904
3 Spin_Up_Time 0x0003 092 092 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 70
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 060 053 030 Pre-fail Always - 34369822191
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 771
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 70
183 Runtime_Bad_Block 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 100 100 000 Old_age Always - 0 0 0
189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 062 053 045 Old_age Always - 38 (Min/Max 23/38)
191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 16
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 1683
194 Temperature_Celsius 0x0022 038 047 000 Old_age Always - 38 (0 22 0 0 0)
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 - 609h+55m+43.123s
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 14847678542
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 18032281564

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.

Drive #4:
smartctl 6.3 2014-07-26 r3976 [x86_64-linux-3.16.7-7-desktop] (SUSE RPM)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Seagate Desktop HDD.15
Device Model: ST4000DM000-1F2168
Serial Number: W3006KXN
LU WWN Device Id: 5 000c50 0607889a5
Firmware Version: CC52
User Capacity: 4,000,787,030,016 bytes [4.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5900 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS T13/1699-D revision 4
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Apr 2 15:52:19 2015 EDT
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: ( 612) 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: ( 527) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x1085) SCT Status 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 117 099 006 Pre-fail Always - 166446144
3 Spin_Up_Time 0x0003 092 092 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 167
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 078 060 030 Pre-fail Always - 72742556
9 Power_On_Hours 0x0032 085 085 000 Old_age Always - 13937
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 203
183 Runtime_Bad_Block 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 100 100 000 Old_age Always - 0 0 0
189 High_Fly_Writes 0x003a 078 078 000 Old_age Always - 22
190 Airflow_Temperature_Cel 0x0022 061 050 045 Old_age Always - 39 (Min/Max 23/39)
191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 148
193 Load_Cycle_Count 0x0032 097 097 000 Old_age Always - 7121
194 Temperature_Celsius 0x0022 039 050 000 Old_age Always - 39 (0 15 0 0 0)
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 - 10995h+46m+41.517s
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 51797768999
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 108562538126

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.