December 30, 201510 yr I'm trying to add a new drive to my machine. After installing the drive and restarting the array (without this drive) I initiated the pre-clear of the new drive using gfjardim's pre-clear plugin. After receiving several error messages regarding the new drive I returned it for a replacement drive. This evening I installed the new replacement drive and started the pre-clear again. This new drive is the same Seagate 3TB model, obviously with a new serial number. 9% into the preclear I got these four notices in quick succession. Event: unRAID device sdb SMART message [5] Subject: Notice [TOWER] - reallocated sector ct returned to normal value Description: ST3000DM001-1ER166_Z501N3RT (sdb) Importance: normal Event: unRAID device sdb SMART message [187] Subject: Notice [TOWER] - reported uncorrect returned to normal value Description: ST3000DM001-1ER166_Z501N3RT (sdb) Importance: normal Event: unRAID device sdb SMART message [197] Subject: Notice [TOWER] - current pending sector returned to normal value Description: ST3000DM001-1ER166_Z501N3RT (sdb) Importance: normal Event: unRAID device sdb SMART message [198] Subject: Notice [TOWER] - offline uncorrectable returned to normal value Description: ST3000DM001-1ER166_Z501N3RT (sdb) Importance: normal I don't know what to make of these messages since I didn't receive any error messages or notices that anything was abnormal. I wouldn't expect these are corrections of the error messages from the other (returned) drive.
December 30, 201510 yr Author smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.1.13-unRAID] (local build) Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Seagate Barracuda 7200.14 (AF) Device Model: ST3000DM001-1ER166 Serial Number: Z501N3RT LU WWN Device Id: 5 000c50 086cac477 Firmware Version: CC25 User Capacity: 3,000,592,982,016 bytes [3.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 7200 rpm 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: 3.0 Gb/s) Local Time is: Tue Dec 29 18:46:17 2015 CST 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: ( 80) 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: ( 311) 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 116 099 006 Pre-fail Always - 105868552 3 Spin_Up_Time 0x0003 100 100 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 1 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 100 253 030 Pre-fail Always - 29196 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 0 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 2 183 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 066 066 045 Old_age Always - 34 (Min/Max 28/34) 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 - 1 193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 6 194 Temperature_Celsius 0x0022 034 040 000 Old_age Always - 34 (0 25 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 - 0h+38m+23.722s 241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 0 242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 591730646 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.
December 30, 201510 yr Author Here is the SMART for the one I returned smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.1.13-unRAID] (local build) Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Seagate Barracuda 7200.14 (AF) Device Model: ST3000DM001-1ER166 Serial Number: Z501N37C LU WWN Device Id: 5 000c50 086caf86e Firmware Version: CC25 User Capacity: 3,000,592,982,016 bytes [3.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 7200 rpm 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: 3.0 Gb/s) Local Time is: Sun Dec 27 19:30:18 2015 CST 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: ( 80) 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: ( 316) 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 114 099 006 Pre-fail Always - 152076578 3 Spin_Up_Time 0x0003 100 100 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 1 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 100 253 030 Pre-fail Always - 43841 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 2 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 1 183 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 098 098 000 Old_age Always - 2 188 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 067 067 045 Old_age Always - 33 (Min/Max 22/33) 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 - 1 193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 6 194 Temperature_Celsius 0x0022 033 040 000 Old_age Always - 33 (0 22 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 - 0 240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 0h+55m+16.762s 241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 0 242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 880049214 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: 1 hours (0 days + 1 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 01:57:55.984 READ FPDMA QUEUED 60 00 00 ff ff ff 4f 00 01:57:55.984 READ FPDMA QUEUED 60 00 08 ff ff ff 4f 00 01:57:55.968 READ FPDMA QUEUED 60 00 08 ff ff ff 4f 00 01:57:55.968 READ FPDMA QUEUED 60 00 08 ff ff ff 4f 00 01:57:55.968 READ FPDMA QUEUED Error 1 occurred at disk power-on lifetime: 1 hours (0 days + 1 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 01:57:52.122 READ FPDMA QUEUED 60 00 00 ff ff ff 4f 00 01:57:52.117 READ FPDMA QUEUED 60 00 00 ff ff ff 4f 00 01:57:52.117 READ FPDMA QUEUED 60 00 00 ff ff ff 4f 00 01:57:52.104 READ FPDMA QUEUED 60 00 00 ff ff ff 4f 00 01:57:52.104 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.
December 30, 201510 yr That is a very unreliable Seagate model. I recommend to scrap it as fast as you can.
December 30, 201510 yr Author I've had good service from this drive for several years now. I've had 4 of them start to fail about 3-5 months before the factory warranty expired and Seagate was quick to send me replacement drives. All the replacement drives are still running, two of them for over 2 years. I'm satisfied with getting 4+ years out of a $90 drive. As for drive reliability, that seems to be chasing the wind. Every person I've spoke with has their own opinion and favorite. There are so many variables that go into drive quality that unless you have the purchase power (volume) to pick and choose production lots, its a fool's errand for a non-pro, like me to find the perfect drive. On the other hand, once I get a drive its only prudent to test it before putting it into the array. So anyone have any idea what the 'return to normal' notices are about?
December 30, 201510 yr Community Expert Your new disk looks healthy, notifications are about the change, it also happens to me sometimes , with some delay.
January 1, 201610 yr Author I stumbled upon this report tonight while looking for something else. https://www.backblaze.com/blog/hard-drive-reliability-q3-2015/ According to this chart, they use a lot of these seagate drives despite a relatively higher failure rate. This data did give me the opportunity to pull some deeper statistics. The first & obvious stat to consider when buying a drive is $/TB. Then compare that to the failure rate and decide if the savings in $/TB between various options is worth the increase failure rate. This chart also lists an average # months in service. Now I can also price TB over time to find HGST 2TB may be a better deal even if it cost more per TB, since it may live about 40% longer.
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