SMART Errors on Drives - Advice please.

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TheBlueRaja

Dabbler
Joined
Sep 22, 2017
Messages
15
Hi All,
I'm recieveing the following errors on my drive pool:-

Code:
CRITICAL: 		 	 	 	Dec. 23, 2017, 10:49 p.m. - Device: /dev/ada2, FAILED SMART self-check. BACK UP DATA NOW!
CRITICAL: 		 	 	 	Dec. 23, 2017, 10:49 p.m. - Device: /dev/ada2, Failed SMART usage Attribute: 1 Raw_Read_Error_Rate.


Running the smartctl command i see the following for all drives in my pool.

Code:
root@freenas:/nonexistent # smartctl -a /dev/ada0
smartctl 6.5 2016-05-07 r4318 [FreeBSD 11.0-STABLE amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:	 Hitachi Deskstar 7K3000
Device Model:	 Hitachi HDS723030ALA640
Serial Number:	MK0351YHK1DTDA
LU WWN Device Id: 5 000cca 225eaeae2
Firmware Version: MKAOAA10
User Capacity:	3,000,592,982,016 bytes [3.00 TB]
Sector Size:	  512 bytes logical/physical
Rotation Rate:	7200 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 2.6, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:	Tue Dec 26 19:00:13 2017 GMT
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:  (0x84) Offline data collection activity
										was suspended by an interrupting command from host.
										Auto Offline Data Collection: Enabled.
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:				(   24) seconds.
Offline data collection
capabilities:					(0x5b) SMART execute Offline immediate.
										Auto Offline data collection on/off support.
										Suspend Offline collection upon new
										command.
										Offline surface scan supported.
										Self-test supported.
										No 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:		( 461) minutes.
SCT capabilities:			  (0x003d) SCT Status supported.
										SCT Error Recovery Control supported.
										SCT Feature Control supported.
										SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME		  FLAG	 VALUE WORST THRESH TYPE	  UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate	 0x000b   100   100   016	Pre-fail  Always	   -	   0
  2 Throughput_Performance  0x0005   135   135   054	Pre-fail  Offline	  -	   84
  3 Spin_Up_Time			0x0007   160   160   024	Pre-fail  Always	   -	   506 (Average 461)
  4 Start_Stop_Count		0x0012   100   100   000	Old_age   Always	   -	   30
  5 Reallocated_Sector_Ct   0x0033   100   100   005	Pre-fail  Always	   -	   0
  7 Seek_Error_Rate		 0x000b   100   100   067	Pre-fail  Always	   -	   0
  8 Seek_Time_Performance   0x0005   123   123   020	Pre-fail  Offline	  -	   31
  9 Power_On_Hours		  0x0012   097   097   000	Old_age   Always	   -	   21027
 10 Spin_Retry_Count		0x0013   100   100   060	Pre-fail  Always	   -	   0
 12 Power_Cycle_Count	   0x0032   100   100   000	Old_age   Always	   -	   22
192 Power-Off_Retract_Count 0x0032   100   100   000	Old_age   Always	   -	   328
193 Load_Cycle_Count		0x0012   100   100   000	Old_age   Always	   -	   328
194 Temperature_Celsius	 0x0002   117   117   000	Old_age   Always	   -	   51 (Min/Max 22/58)
196 Reallocated_Event_Count 0x0032   100   100   000	Old_age   Always	   -	   0
197 Current_Pending_Sector  0x0022   100   100   000	Old_age   Always	   -	   0
198 Offline_Uncorrectable   0x0008   100   100   000	Old_age   Offline	  -	   0
199 UDMA_CRC_Error_Count	0x000a   200   200   000	Old_age   Always	   -	   0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description	Status				  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline	   Completed without error	   00%	 18984		 -

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.

root@freenas:/nonexistent # smartctl -a /dev/ada1
smartctl 6.5 2016-05-07 r4318 [FreeBSD 11.0-STABLE amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:	 Hitachi Deskstar 7K3000
Device Model:	 Hitachi HDS723030ALA640
Serial Number:	MK0371YHHEGXTA
LU WWN Device Id: 5 000cca 225d4385e
Firmware Version: MKAOAA10
User Capacity:	3,000,592,982,016 bytes [3.00 TB]
Sector Size:	  512 bytes logical/physical
Rotation Rate:	7200 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 2.6, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:	Tue Dec 26 19:00:17 2017 GMT
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:  (0x84) Offline data collection activity
										was suspended by an interrupting command from host.
										Auto Offline Data Collection: Enabled.
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:				(   24) seconds.
Offline data collection
capabilities:					(0x5b) SMART execute Offline immediate.
										Auto Offline data collection on/off support.
										Suspend Offline collection upon new
										command.
										Offline surface scan supported.
										Self-test supported.
										No 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:		( 476) minutes.
SCT capabilities:			  (0x003d) SCT Status supported.
										SCT Error Recovery Control supported.
										SCT Feature Control supported.
										SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME		  FLAG	 VALUE WORST THRESH TYPE	  UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate	 0x000b   100   100   016	Pre-fail  Always	   -	   65536
  2 Throughput_Performance  0x0005   135   135   054	Pre-fail  Offline	  -	   86
  3 Spin_Up_Time			0x0007   132   132   024	Pre-fail  Always	   -	   558 (Average 615)
  4 Start_Stop_Count		0x0012   100   100   000	Old_age   Always	   -	   24
  5 Reallocated_Sector_Ct   0x0033   100   100   005	Pre-fail  Always	   -	   0
  7 Seek_Error_Rate		 0x000b   100   100   067	Pre-fail  Always	   -	   0
  8 Seek_Time_Performance   0x0005   123   123   020	Pre-fail  Offline	  -	   31
  9 Power_On_Hours		  0x0012   097   097   000	Old_age   Always	   -	   21367
 10 Spin_Retry_Count		0x0013   100   100   060	Pre-fail  Always	   -	   0
 12 Power_Cycle_Count	   0x0032   100   100   000	Old_age   Always	   -	   24
192 Power-Off_Retract_Count 0x0032   100   100   000	Old_age   Always	   -	   104
193 Load_Cycle_Count		0x0012   100   100   000	Old_age   Always	   -	   104
194 Temperature_Celsius	 0x0002   142   142   000	Old_age   Always	   -	   42 (Min/Max 19/45)
196 Reallocated_Event_Count 0x0032   100   100   000	Old_age   Always	   -	   0
197 Current_Pending_Sector  0x0022   100   100   000	Old_age   Always	   -	   0
198 Offline_Uncorrectable   0x0008   100   100   000	Old_age   Offline	  -	   0
199 UDMA_CRC_Error_Count	0x000a   200   200   000	Old_age   Always	   -	   0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description	Status				  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline	   Completed without error	   00%	 21356		 -
# 2  Short offline	   Completed without error	   00%	 21332		 -
# 3  Short offline	   Completed without error	   00%	 21308		 -
# 4  Short offline	   Completed without error	   00%	 21284		 -
# 5  Short offline	   Completed without error	   00%	 21260		 -
# 6  Short offline	   Completed without error	   00%	 21236		 -
# 7  Short offline	   Completed without error	   00%	 21212		 -
# 8  Short offline	   Completed without error	   00%	 21188		 -
# 9  Short offline	   Completed without error	   00%	 21164		 -
#10  Short offline	   Completed without error	   00%	 21140		 -
#11  Short offline	   Completed without error	   00%	 21116		 -
#12  Short offline	   Completed without error	   00%	 21092		 -
#13  Short offline	   Completed without error	   00%	 21068		 -
#14  Short offline	   Completed without error	   00%	 21044		 -
#15  Short offline	   Completed without error	   00%	 21020		 -
#16  Short offline	   Completed without error	   00%	 20996		 -
#17  Short offline	   Completed without error	   00%	 20972		 -
#18  Short offline	   Completed without error	   00%	 20948		 -
#19  Short offline	   Completed without error	   00%	 20924		 -
#20  Short offline	   Completed without error	   00%	 20900		 -
#21  Short offline	   Completed without error	   00%	 20876		 -

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.

root@freenas:/nonexistent # smartctl -a /dev/ada2
smartctl 6.5 2016-05-07 r4318 [FreeBSD 11.0-STABLE amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:	 Hitachi Deskstar 7K3000
Device Model:	 Hitachi HDS723030ALA640
Serial Number:	MK0371YHHV9N0A
LU WWN Device Id: 5 000cca 225da0d5c
Firmware Version: MKAOAA10
User Capacity:	3,000,592,982,016 bytes [3.00 TB]
Sector Size:	  512 bytes logical/physical
Rotation Rate:	7200 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 2.6, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:	Tue Dec 26 19:00:20 2017 GMT
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:  (0x84) Offline data collection activity
										was suspended by an interrupting command from host.
										Auto Offline Data Collection: Enabled.
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:				(   24) seconds.
Offline data collection
capabilities:					(0x5b) SMART execute Offline immediate.
										Auto Offline data collection on/off support.
										Suspend Offline collection upon new
										command.
										Offline surface scan supported.
										Self-test supported.
										No 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:		( 480) minutes.
SCT capabilities:			  (0x003d) SCT Status supported.
										SCT Error Recovery Control supported.
										SCT Feature Control supported.
										SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME		  FLAG	 VALUE WORST THRESH TYPE	  UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate	 0x000b   032   032   016	Pre-fail  Always	   -	   196607
  2 Throughput_Performance  0x0005   135   135   054	Pre-fail  Offline	  -	   84
  3 Spin_Up_Time			0x0007   136   136   024	Pre-fail  Always	   -	   509 (Average 629)
  4 Start_Stop_Count		0x0012   100   100   000	Old_age   Always	   -	   28
  5 Reallocated_Sector_Ct   0x0033   100   100   005	Pre-fail  Always	   -	   0
  7 Seek_Error_Rate		 0x000b   100   100   067	Pre-fail  Always	   -	   0
  8 Seek_Time_Performance   0x0005   123   123   020	Pre-fail  Offline	  -	   31
  9 Power_On_Hours		  0x0012   097   097   000	Old_age   Always	   -	   21367
 10 Spin_Retry_Count		0x0013   100   100   060	Pre-fail  Always	   -	   0
 12 Power_Cycle_Count	   0x0032   100   100   000	Old_age   Always	   -	   24
192 Power-Off_Retract_Count 0x0032   100   100   000	Old_age   Always	   -	   133
193 Load_Cycle_Count		0x0012   100   100   000	Old_age   Always	   -	   133
194 Temperature_Celsius	 0x0002   120   120   000	Old_age   Always	   -	   50 (Min/Max 19/50)
196 Reallocated_Event_Count 0x0032   100   100   000	Old_age   Always	   -	   0
197 Current_Pending_Sector  0x0022   100   100   000	Old_age   Always	   -	   0
198 Offline_Uncorrectable   0x0008   100   100   000	Old_age   Offline	  -	   0
199 UDMA_CRC_Error_Count	0x000a   200   200   000	Old_age   Always	   -	   0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description	Status				  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline	   Completed without error	   00%	 19436		 -
# 2  Short offline	   Completed without error	   00%	 19412		 -
# 3  Short offline	   Completed without error	   00%	 19388		 -
# 4  Short offline	   Completed without error	   00%	 19364		 -
# 5  Short offline	   Completed without error	   00%	 19325		 -

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.

root@freenas:/nonexistent # smartctl -a /dev/ada3
smartctl 6.5 2016-05-07 r4318 [FreeBSD 11.0-STABLE amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:	 Hitachi Deskstar 7K3000
Device Model:	 Hitachi HDS723030ALA640
Serial Number:	MK0371YVJD3Z7A
LU WWN Device Id: 5 000cca 234e1b262
Firmware Version: MKAOAA10
User Capacity:	3,000,592,982,016 bytes [3.00 TB]
Sector Size:	  512 bytes logical/physical
Rotation Rate:	7200 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 2.6, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:	Tue Dec 26 19:00:24 2017 GMT
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:  (0x84) Offline data collection activity
										was suspended by an interrupting command from host.
										Auto Offline Data Collection: Enabled.
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:				(   24) seconds.
Offline data collection
capabilities:					(0x5b) SMART execute Offline immediate.
										Auto Offline data collection on/off support.
										Suspend Offline collection upon new
										command.
										Offline surface scan supported.
										Self-test supported.
										No 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:		( 457) minutes.
SCT capabilities:			  (0x003d) SCT Status supported.
										SCT Error Recovery Control supported.
										SCT Feature Control supported.
										SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME		  FLAG	 VALUE WORST THRESH TYPE	  UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate	 0x000b   100   100   016	Pre-fail  Always	   -	   0
  2 Throughput_Performance  0x0005   135   135   054	Pre-fail  Offline	  -	   84
  3 Spin_Up_Time			0x0007   133   133   024	Pre-fail  Always	   -	   517 (Average 645)
  4 Start_Stop_Count		0x0012   100   100   000	Old_age   Always	   -	   22
  5 Reallocated_Sector_Ct   0x0033   100   100   005	Pre-fail  Always	   -	   17
  7 Seek_Error_Rate		 0x000b   100   100   067	Pre-fail  Always	   -	   0
  8 Seek_Time_Performance   0x0005   123   123   020	Pre-fail  Offline	  -	   31
  9 Power_On_Hours		  0x0012   097   097   000	Old_age   Always	   -	   21027
 10 Spin_Retry_Count		0x0013   100   100   060	Pre-fail  Always	   -	   0
 12 Power_Cycle_Count	   0x0032   100   100   000	Old_age   Always	   -	   22
192 Power-Off_Retract_Count 0x0032   100   100   000	Old_age   Always	   -	   312
193 Load_Cycle_Count		0x0012   100   100   000	Old_age   Always	   -	   312
194 Temperature_Celsius	 0x0002   113   113   000	Old_age   Always	   -	   53 (Min/Max 23/61)
196 Reallocated_Event_Count 0x0032   100   100   000	Old_age   Always	   -	   17
197 Current_Pending_Sector  0x0022   100   100   000	Old_age   Always	   -	   0
198 Offline_Uncorrectable   0x0008   100   100   000	Old_age   Offline	  -	   0
199 UDMA_CRC_Error_Count	0x000a   200   200   000	Old_age   Always	   -	   0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description	Status				  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline	   Completed without error	   00%	 18984		 -

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.

root@freenas:/nonexistent #


All drives "Pass" SMART but i see read errors on ada1 and ada2 (ada2 is the only drive mentioned in the reporting as having issues.

So daft questions time, should i be replacing both of these ASAP? Why are they showing as Passed? Should i remove these from the pool for now and order new drives or just order new drives then replace?

Thanks
 
R

rs225

Guru
Joined
Jun 28, 2014
Messages
878
You would need to post your zpool status for specific advice, but I would get a replacement for ada2, connect it, and then start a replace for ada2 without removing any drives. Hopefully you have an extra bay.

After that finishes, ada1 should get the same treatment.
 
T

TheBlueRaja

Dabbler
Joined
Sep 22, 2017
Messages
15
Thanks,
zpool status attached as requested. Seems again to suggest there are no issues.

Why would SMART pass and everything look ok yet give errors?

Code:
[root@freenas ~]# zpool status																									 
  pool: Storage																													 
 state: ONLINE																													 
  scan: scrub repaired 0 in 6h17m with 0 errors on Sun Dec 17 06:17:30 2017														 
config:																															 
																																   
	   NAME											STATE	 READ WRITE CKSUM												 
	   Storage										 ONLINE	   0	 0	 0												 
		 mirror-0									  ONLINE	   0	 0	 0												 
		   gptid/afa57da4-a22a-11e7-b6bc-4439c4542f77  ONLINE	   0	 0	 0												 
		   gptid/b06a90ad-a22a-11e7-b6bc-4439c4542f77  ONLINE	   0	 0	 0												 
		 mirror-1									  ONLINE	   0	 0	 0												 
		   gptid/b11d9bff-a22a-11e7-b6bc-4439c4542f77  ONLINE	   0	 0	 0												 
		   gptid/b1d4bad8-a22a-11e7-b6bc-4439c4542f77  ONLINE	   0	 0	 0												 
	   logs																														
		 gptid/61239d29-a839-11e7-85cf-4439c4542f77	ONLINE	   0	 0	 0												 
																																   
errors: No known data errors																										
																																   
  pool: freenas-boot																												
 state: ONLINE																													 
  scan: scrub repaired 0 in 0h1m with 0 errors on Thu Dec 21 03:46:07 2017														 
config:																															 
																																   
	   NAME		STATE	 READ WRITE CKSUM																					 
	   freenas-boot  ONLINE	   0	 0	 0																					
		 da0p2	 ONLINE	   0	 0	 0																					 
																																   
errors: No known data errors
 
R

rs225

Guru
Joined
Jun 28, 2014
Messages
878
If ada1 and ada2 are the same mirror set, then you would have a potentially big problem.

There are no errors because at this point, the drive is just noticing the start of a problem. The problem is an elevated number of poor reads.
 
Johnnie Black

Johnnie Black

Guru
Joined
May 10, 2017
Messages
838
ada1 might be OK:

Code:
ID# ATTRIBUTE_NAME		  FLAG	 VALUE WORST THRESH TYPE	  UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate	 0x000b   100   100   016	Pre-fail  Always	   -	   65536


The normalized value is still 100, same as the worst, threshold is 16, the raw value looks more like a fluke, since 65536dec=1000hex, but it's just a guess.

ada2 looks bad.
 
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danb35

danb35

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And as some other matters--all the disks are too warm, and some by a lot. And only ada1 is running regular SMART self-tests, and only short tests at that.
 
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TheBlueRaja

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danb35 said:
And as some other matters--all the disks are too warm, and some by a lot. And only ada1 is running regular SMART self-tests, and only short tests at that.
Click to expand...

Wow, I see your point, Is that suggesting these are running around 120 degrees C? I'm struggling to believe that but I'll check.

I'll also look into the smart tests, however, I've not changed anything from "default" so I'm surprised one is and the rest aren't. Is that normal?
 
danb35

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TheBlueRaja said:
Is that suggesting these are running around 120 degrees C
Click to expand...
No, the warmest are about 50°C. We generally recommend 40°C or lower for best lifespan.
 
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TheBlueRaja

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danb35 said:
No, the warmest are about 50°C. We generally recommend 40°C or lower for best lifespan.
Click to expand...

Ah, that's more like it, these sit in a Lenovo TS140 quite close together, so yeah, they may be a bit hot.

My environment will be changing soon as I'm moving and I plan to stick this in a nice open cold loft as opposed to the cupboard they are in now.

Thanks for pointing that out though.
 
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TheBlueRaja

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Hi Folks,
One more question, whilst i wait for my new drive to arrive, should i mark this one as Offline or just leave it?

Also, would i just mark the drive offline in the Volume Status page (FreeNAS 11), shut down, physically swap, bootup, then hit replace in the same screen to add the new disk?

Thanks
 
danb35

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TheBlueRaja said:
should i mark this one as Offline or just leave it?
Click to expand...
Leave it online.
TheBlueRaja said:
would i just mark the drive offline in the Volume Status page (FreeNAS 11), shut down, physically swap, bootup, then hit replace in the same screen to add the new disk?
Click to expand...
Yes, all that would be done in the Volume Status page. But if you have a spare SATA port you can replace the drive without taking the old drive offline first. That way, you don't lose any redundancy.
 
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TheBlueRaja

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danb35 said:
Leave it online.

Yes, all that would be done in the Volume Status page. But if you have a spare SATA port you can replace the drive without taking the old drive offline first. That way, you don't lose any redundancy.
Click to expand...

Thanks mate, appreciate your help with this.
 
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