What are your drives connected to?
Harddrives are directly connected to the motherboard via SATA cables
You may need to dive deeper, which I’m not comfortable with.
So you’re not without some understanding of what you tried:
- We confirmed that the OS detects the disks and their partitions
- Two 12-TB disks, each with a swap partition and a ZFS partition
zpool importclaims there are no available pools to importzpool import -d /dev/disk/by-partuuidcannot even detect the ZFS metadata on the supposed partitions, even when instructed to explicitly look for them with known PARTUUIDs.
Since you’re not using an HBA or “RAID” card, it also rules those out.
Someone might come in here with zdb commands, which are too low level for my comfort.
Thanks for the explanation - I guess it’s still unknown why the sudden restart can cause the drives to suddenly be “unmounted” from the pool
(not sure if thats the correct terminology)
corrupted something perhaps leading to it being unreadable
It is concerning.
Unless the reboot was caused by faulty power or an electrical issue, and somehow managed to damage both HDDs, but not enough to make them undetecable or ruin their partition tables.
Doesn’t hurt to run a short (and if you’re willing, a long) SMART selftest on both drives.
While you’re at it, to check some SMART info before running any tests:
smartctl -l selftest /dev/sda
smartctl -l error /dev/sda
smartctl -x /dev/sda
Repeat for sdb as well.
root@truenas[~]# smartctl -l selftest /dev/sda
smartctl -l error /dev/sda
smartctl -x /dev/sda
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.15.131+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
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% 273 -
# 2 Short offline Completed without error 00% 105 -
# 3 Extended offline Completed without error 00% 23 -
# 4 Short offline Completed without error 00% 6 -
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.15.131+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Error Log Version: 1
No Errors Logged
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.15.131+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: ST12000NM0127
Serial Number: ZJV59MC0
LU WWN Device Id: 5 000c50 0b66ef478
Firmware Version: G006
User Capacity: 12,000,138,625,024 bytes [12.0 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 7200 rpm
Form Factor: 3.5 inches
Device is: Not in smartctl database [for details use: -P showall]
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: Thu Feb 20 20:30:29 2025 EST
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, frozen [SEC2]
Wt Cache Reorder: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error.
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: ( 567) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
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: (1067) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x50bd) 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 FLAGS VALUE WORST THRESH FAIL RAW_VALUE
1 Raw_Read_Error_Rate POSR-- 081 064 044 - 127227163
3 Spin_Up_Time PO---- 093 090 000 - 0
4 Start_Stop_Count -O--CK 100 100 020 - 30
5 Reallocated_Sector_Ct PO--CK 100 100 010 - 0
7 Seek_Error_Rate POSR-- 079 060 045 - 84227424
9 Power_On_Hours -O--CK 097 097 000 - 2898
10 Spin_Retry_Count PO--C- 100 100 097 - 0
12 Power_Cycle_Count -O--CK 100 100 020 - 31
184 End-to-End_Error -O--CK 100 100 099 - 0
187 Reported_Uncorrect -O--CK 100 100 000 - 0
188 Command_Timeout -O--CK 100 100 000 - 0
190 Airflow_Temperature_Cel -O---K 066 053 040 - 34 (Min/Max 22/34)
192 Power-Off_Retract_Count -O--CK 100 100 000 - 125
193 Load_Cycle_Count -O--CK 100 100 000 - 148
194 Temperature_Celsius -O---K 034 047 000 - 34 (0 20 0 0 0)
195 Hardware_ECC_Recovered -O-RC- 011 006 000 - 127227163
197 Current_Pending_Sector -O--C- 100 100 000 - 0
198 Offline_Uncorrectable ----C- 100 100 000 - 0
199 UDMA_CRC_Error_Count -OSRCK 200 200 000 - 0
200 Multi_Zone_Error_Rate PO---K 100 100 001 - 0
240 Head_Flying_Hours ------ 100 253 000 - 2879 (35 3 0)
241 Total_LBAs_Written ------ 100 253 000 - 19498374381
242 Total_LBAs_Read ------ 100 253 000 - 48170653765
||||||_ 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 5 Comprehensive SMART error log
0x03 GPL R/O 5 Ext. Comprehensive SMART error log
0x04 GPL R/O 256 Device Statistics log
0x04 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
0x08 GPL R/O 2 Power Conditions log
0x09 SL R/W 1 Selective self-test log
0x0c GPL R/O 2048 Pending Defects log
0x10 GPL R/O 1 NCQ Command Error log
0x11 GPL R/O 1 SATA Phy Event Counters log
0x13 GPL R/O 1 SATA NCQ Send and Receive log
0x15 GPL R/W 1 Rebuild Assist log
0x21 GPL R/O 1 Write stream error log
0x22 GPL R/O 1 Read stream error log
0x24 GPL R/O 768 Current 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
0xa1 GPL,SL VS 24 Device vendor specific log
0xa2 GPL VS 16320 Device vendor specific log
0xa4 GPL,SL VS 160 Device vendor specific log
0xa6 GPL VS 192 Device vendor specific log
0xa8-0xa9 GPL,SL VS 136 Device vendor specific log
0xab GPL VS 1 Device vendor specific log
0xad GPL VS 16 Device vendor specific log
0xaf GPL,SL VS 1 Device vendor specific log
0xbe-0xbf GPL VS 65535 Device vendor specific log
0xc1 GPL,SL VS 8 Device vendor specific log
0xc3 GPL,SL VS 32 Device vendor specific log
0xc9 GPL,SL VS 8 Device vendor specific log
0xca GPL,SL VS 16 Device vendor specific log
0xd1 GPL VS 336 Device vendor specific log
0xd2 GPL VS 10000 Device vendor specific log
0xd4 GPL VS 2048 Device vendor specific log
0xda GPL,SL VS 1 Device vendor specific log
0xe0 GPL,SL R/W 1 SCT Command/Status
0xe1 GPL,SL R/W 1 SCT Data Transfer
SMART Extended Comprehensive Error Log Version: 1 (5 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 Short offline Completed without error 00% 273 -
# 2 Short offline Completed without error 00% 105 -
# 3 Extended offline Completed without error 00% 23 -
# 4 Short offline Completed without error 00% 6 -
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.
SCT Status Version: 3
SCT Version (vendor specific): 522 (0x020a)
Device State: Active (0)
Current Temperature: 34 Celsius
Power Cycle Min/Max Temperature: 21/34 Celsius
Lifetime Min/Max Temperature: 20/47 Celsius
Under/Over Temperature Limit Count: 0/0
Vendor specific:
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 5a 01 00 00 00 00 00 00 00 00 00 00 00 00
SCT Temperature History Version: 2
Temperature Sampling Period: 3 minutes
Temperature Logging Interval: 59 minutes
Min/Max recommended Temperature: 10/40 Celsius
Min/Max Temperature Limit: 5/60 Celsius
Temperature History Size (Index): 128 (56)
Index Estimated Time Temperature Celsius
57 2025-02-15 15:33 38 *******************
58 2025-02-15 16:32 37 ******************
... ..( 7 skipped). .. ******************
66 2025-02-16 00:24 37 ******************
67 2025-02-16 01:23 36 *****************
... ..( 20 skipped). .. *****************
88 2025-02-16 22:02 36 *****************
89 2025-02-16 23:01 37 ******************
90 2025-02-17 00:00 37 ******************
91 2025-02-17 00:59 37 ******************
92 2025-02-17 01:58 41 **********************
93 2025-02-17 02:57 43 ************************
94 2025-02-17 03:56 44 *************************
95 2025-02-17 04:55 44 *************************
96 2025-02-17 05:54 43 ************************
97 2025-02-17 06:53 43 ************************
98 2025-02-17 07:52 43 ************************
99 2025-02-17 08:51 44 *************************
100 2025-02-17 09:50 44 *************************
101 2025-02-17 10:49 39 ********************
... ..( 7 skipped). .. ********************
109 2025-02-17 18:41 39 ********************
110 2025-02-17 19:40 ? -
111 2025-02-17 20:39 21 **
112 2025-02-17 21:38 ? -
113 2025-02-17 22:37 25 ******
114 2025-02-17 23:36 ? -
115 2025-02-18 00:35 27 ********
116 2025-02-18 01:34 ? -
117 2025-02-18 02:33 23 ****
118 2025-02-18 03:32 ? -
119 2025-02-18 04:31 22 ***
120 2025-02-18 05:30 ? -
121 2025-02-18 06:29 23 ****
122 2025-02-18 07:28 ? -
123 2025-02-18 08:27 23 ****
124 2025-02-18 09:26 ? -
125 2025-02-18 10:25 24 *****
126 2025-02-18 11:24 ? -
127 2025-02-18 12:23 24 *****
0 2025-02-18 13:22 ? -
1 2025-02-18 14:21 25 ******
2 2025-02-18 15:20 ? -
3 2025-02-18 16:19 26 *******
4 2025-02-18 17:18 ? -
5 2025-02-18 18:17 24 *****
6 2025-02-18 19:16 33 **************
... ..( 2 skipped). .. **************
9 2025-02-18 22:13 33 **************
10 2025-02-18 23:12 ? -
11 2025-02-19 00:11 33 **************
... ..( 2 skipped). .. **************
14 2025-02-19 03:08 33 **************
15 2025-02-19 04:07 ? -
16 2025-02-19 05:06 33 **************
17 2025-02-19 06:05 ? -
18 2025-02-19 07:04 33 **************
... ..( 2 skipped). .. **************
21 2025-02-19 10:01 33 **************
22 2025-02-19 11:00 32 *************
... ..( 3 skipped). .. *************
26 2025-02-19 14:56 32 *************
27 2025-02-19 15:55 33 **************
... ..( 2 skipped). .. **************
30 2025-02-19 18:52 33 **************
31 2025-02-19 19:51 34 ***************
32 2025-02-19 20:50 33 **************
33 2025-02-19 21:49 34 ***************
34 2025-02-19 22:48 33 **************
... ..( 6 skipped). .. **************
41 2025-02-20 05:41 33 **************
42 2025-02-20 06:40 32 *************
... ..( 5 skipped). .. *************
48 2025-02-20 12:34 32 *************
49 2025-02-20 13:33 31 ************
50 2025-02-20 14:32 32 *************
51 2025-02-20 15:31 33 **************
52 2025-02-20 16:30 33 **************
53 2025-02-20 17:29 ? -
54 2025-02-20 18:28 26 *******
55 2025-02-20 19:27 ? -
56 2025-02-20 20:26 21 **
SCT Error Recovery Control:
Read: 40 (4.0 seconds)
Write: 40 (4.0 seconds)
Device Statistics (GP Log 0x04)
Page Offset Size Value Flags Description
0x01 ===== = = === == General Statistics (rev 1) ==
0x01 0x008 4 31 --- Lifetime Power-On Resets
0x01 0x010 4 2898 --- Power-on Hours
0x01 0x018 6 19498050813 --- Logical Sectors Written
0x01 0x020 6 99525469 --- Number of Write Commands
0x01 0x028 6 48170650288 --- Logical Sectors Read
0x01 0x030 6 48126654 --- Number of Read Commands
0x01 0x038 6 - --- Date and Time TimeStamp
0x03 ===== = = === == Rotating Media Statistics (rev 1) ==
0x03 0x008 4 3370283146 N-- Spindle Motor Power-on Hours
0x03 0x010 4 3370283146 N-- Head Flying Hours
0x03 0x018 4 148 --- Head Load Events
0x03 0x020 4 0 --- Number of Reallocated Logical Sectors
0x03 0x028 4 0 --- Read Recovery Attempts
0x03 0x030 4 0 --- Number of Mechanical Start Failures
0x03 0x038 4 0 --- Number of Realloc. Candidate Logical Sectors
0x03 0x040 4 125 --- Number of High Priority Unload Events
0x04 ===== = = === == General Errors Statistics (rev 1) ==
0x04 0x008 4 0 --- Number of Reported Uncorrectable Errors
0x04 0x010 4 0 --- Resets Between Cmd Acceptance and Completion
0x05 ===== = = === == Temperature Statistics (rev 1) ==
0x05 0x008 1 34 --- Current Temperature
0x05 0x010 1 32 --- Average Short Term Temperature
0x05 0x018 1 37 --- Average Long Term Temperature
0x05 0x020 1 47 --- Highest Temperature
0x05 0x028 1 27 --- Lowest Temperature
0x05 0x030 1 43 --- Highest Average Short Term Temperature
0x05 0x038 1 32 --- Lowest Average Short Term Temperature
0x05 0x040 1 40 --- Highest Average Long Term Temperature
0x05 0x048 1 37 --- Lowest Average Long Term Temperature
0x05 0x050 4 0 --- Time in Over-Temperature
0x05 0x058 1 60 --- Specified Maximum Operating Temperature
0x05 0x060 4 0 --- Time in Under-Temperature
0x05 0x068 1 5 --- Specified Minimum Operating Temperature
0x06 ===== = = === == Transport Statistics (rev 1) ==
0x06 0x008 4 124 --- Number of Hardware Resets
0x06 0x010 4 76 --- Number of ASR Events
0x06 0x018 4 0 --- Number of Interface CRC Errors
0xff ===== = = === == Vendor Specific Statistics (rev 1) ==
0xff 0x008 7 0 --- Vendor Specific
0xff 0x018 7 0 --- Vendor Specific
|||_ C monitored condition met
||__ D supports DSN
|___ N normalized value
Pending Defects log (GP Log 0x0c)
No Defects Logged
SATA Phy Event Counters (GP Log 0x11)
ID Size Value Description
0x000a 2 1 Device-to-host register FISes sent due to a COMRESET
0x0001 2 0 Command failed due to ICRC error
0x0003 2 0 R_ERR response for device-to-host data FIS
0x0004 2 0 R_ERR response for host-to-device 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
root@truenas[~]# smartctl -l selftest /dev/sdb
smartctl -l error /dev/sdb
smartctl -x /dev/sdb smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.15.131+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
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% 273 -
# 2 Short offline Completed without error 00% 105 -
# 3 Extended offline Completed without error 00% 24 -
# 4 Short offline Completed without error 00% 6 -
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.15.131+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Error Log Version: 1
No Errors Logged
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.15.131+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: ST12000NM0127
Serial Number: ZJV4YHA1
LU WWN Device Id: 5 000c50 0b614737a
Firmware Version: G006
User Capacity: 12,000,138,625,024 bytes [12.0 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 7200 rpm
Form Factor: 3.5 inches
Device is: Not in smartctl database [for details use: -P showall]
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: Thu Feb 20 20:31:50 2025 EST
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, frozen [SEC2]
Wt Cache Reorder: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error.
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: ( 567) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
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: (1088) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x50bd) 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 FLAGS VALUE WORST THRESH FAIL RAW_VALUE
1 Raw_Read_Error_Rate POSR-- 080 064 044 - 96752247
3 Spin_Up_Time PO---- 091 090 000 - 0
4 Start_Stop_Count -O--CK 100 100 020 - 36
5 Reallocated_Sector_Ct PO--CK 100 100 010 - 0
7 Seek_Error_Rate POSR-- 080 060 045 - 89915664
9 Power_On_Hours -O--CK 097 097 000 - 2929
10 Spin_Retry_Count PO--C- 100 100 097 - 0
12 Power_Cycle_Count -O--CK 100 100 020 - 33
184 End-to-End_Error -O--CK 100 100 099 - 0
187 Reported_Uncorrect -O--CK 100 100 000 - 0
188 Command_Timeout -O--CK 100 100 000 - 0
190 Airflow_Temperature_Cel -O---K 065 049 040 - 35 (Min/Max 29/35)
192 Power-Off_Retract_Count -O--CK 100 100 000 - 121
193 Load_Cycle_Count -O--CK 100 100 000 - 153
194 Temperature_Celsius -O---K 035 051 000 - 35 (0 20 0 0 0)
195 Hardware_ECC_Recovered -O-RC- 009 006 000 - 96752247
197 Current_Pending_Sector -O--C- 100 100 000 - 0
198 Offline_Uncorrectable ----C- 100 100 000 - 0
199 UDMA_CRC_Error_Count -OSRCK 200 200 000 - 0
200 Multi_Zone_Error_Rate PO---K 100 100 001 - 0
240 Head_Flying_Hours ------ 100 253 000 - 2898 (41 172 0)
241 Total_LBAs_Written ------ 100 253 000 - 19506750705
242 Total_LBAs_Read ------ 100 253 000 - 71537044894
||||||_ 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 5 Comprehensive SMART error log
0x03 GPL R/O 5 Ext. Comprehensive SMART error log
0x04 GPL R/O 256 Device Statistics log
0x04 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
0x08 GPL R/O 2 Power Conditions log
0x09 SL R/W 1 Selective self-test log
0x0c GPL R/O 2048 Pending Defects log
0x10 GPL R/O 1 NCQ Command Error log
0x11 GPL R/O 1 SATA Phy Event Counters log
0x13 GPL R/O 1 SATA NCQ Send and Receive log
0x15 GPL R/W 1 Rebuild Assist log
0x21 GPL R/O 1 Write stream error log
0x22 GPL R/O 1 Read stream error log
0x24 GPL R/O 768 Current 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
0xa1 GPL,SL VS 24 Device vendor specific log
0xa2 GPL VS 16320 Device vendor specific log
0xa4 GPL,SL VS 160 Device vendor specific log
0xa6 GPL VS 192 Device vendor specific log
0xa8-0xa9 GPL,SL VS 136 Device vendor specific log
0xab GPL VS 1 Device vendor specific log
0xad GPL VS 16 Device vendor specific log
0xaf GPL,SL VS 1 Device vendor specific log
0xbe-0xbf GPL VS 65535 Device vendor specific log
0xc1 GPL,SL VS 8 Device vendor specific log
0xc3 GPL,SL VS 32 Device vendor specific log
0xc9 GPL,SL VS 8 Device vendor specific log
0xca GPL,SL VS 16 Device vendor specific log
0xd1 GPL VS 336 Device vendor specific log
0xd2 GPL VS 10000 Device vendor specific log
0xd4 GPL VS 2048 Device vendor specific log
0xda GPL,SL VS 1 Device vendor specific log
0xe0 GPL,SL R/W 1 SCT Command/Status
0xe1 GPL,SL R/W 1 SCT Data Transfer
SMART Extended Comprehensive Error Log Version: 1 (5 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 Short offline Completed without error 00% 273 -
# 2 Short offline Completed without error 00% 105 -
# 3 Extended offline Completed without error 00% 24 -
# 4 Short offline Completed without error 00% 6 -
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.
SCT Status Version: 3
SCT Version (vendor specific): 522 (0x020a)
Device State: Active (0)
Current Temperature: 34 Celsius
Power Cycle Min/Max Temperature: 29/34 Celsius
Lifetime Min/Max Temperature: 20/51 Celsius
Under/Over Temperature Limit Count: 0/0
Vendor specific:
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 5d 01 00 00 00 00 00 00 00 00 00 00 00 00
SCT Temperature History Version: 2
Temperature Sampling Period: 3 minutes
Temperature Logging Interval: 59 minutes
Min/Max recommended Temperature: 10/40 Celsius
Min/Max Temperature Limit: 5/60 Celsius
Temperature History Size (Index): 128 (90)
Index Estimated Time Temperature Celsius
91 2025-02-15 15:33 36 *****************
92 2025-02-15 16:32 39 ********************
93 2025-02-15 17:31 42 ***********************
... ..( 4 skipped). .. ***********************
98 2025-02-15 22:26 42 ***********************
99 2025-02-15 23:25 43 ************************
100 2025-02-16 00:24 42 ***********************
101 2025-02-16 01:23 38 *******************
... ..( 7 skipped). .. *******************
109 2025-02-16 09:15 38 *******************
110 2025-02-16 10:14 ? -
111 2025-02-16 11:13 21 **
112 2025-02-16 12:12 ? -
113 2025-02-16 13:11 25 ******
114 2025-02-16 14:10 ? -
115 2025-02-16 15:09 28 *********
116 2025-02-16 16:08 ? -
117 2025-02-16 17:07 24 *****
118 2025-02-16 18:06 ? -
119 2025-02-16 19:05 22 ***
120 2025-02-16 20:04 ? -
121 2025-02-16 21:03 23 ****
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SCT Error Recovery Control:
Read: 40 (4.0 seconds)
Write: 40 (4.0 seconds)
Device Statistics (GP Log 0x04)
Page Offset Size Value Flags Description
0x01 ===== = = === == General Statistics (rev 1) ==
0x01 0x008 4 33 --- Lifetime Power-On Resets
0x01 0x010 4 2929 --- Power-on Hours
0x01 0x018 6 19506443785 --- Logical Sectors Written
0x01 0x020 6 99326232 --- Number of Write Commands
0x01 0x028 6 71537041164 --- Logical Sectors Read
0x01 0x030 6 128367641 --- Number of Read Commands
0x01 0x038 6 - --- Date and Time TimeStamp
0x03 ===== = = === == Rotating Media Statistics (rev 1) ==
0x03 0x008 4 851180754 N-- Spindle Motor Power-on Hours
0x03 0x010 4 851180754 N-- Head Flying Hours
0x03 0x018 4 153 --- Head Load Events
0x03 0x020 4 0 --- Number of Reallocated Logical Sectors
0x03 0x028 4 0 --- Read Recovery Attempts
0x03 0x030 4 0 --- Number of Mechanical Start Failures
0x03 0x038 4 0 --- Number of Realloc. Candidate Logical Sectors
0x03 0x040 4 121 --- Number of High Priority Unload Events
0x04 ===== = = === == General Errors Statistics (rev 1) ==
0x04 0x008 4 0 --- Number of Reported Uncorrectable Errors
0x04 0x010 4 0 --- Resets Between Cmd Acceptance and Completion
0x05 ===== = = === == Temperature Statistics (rev 1) ==
0x05 0x008 1 34 --- Current Temperature
0x05 0x010 1 40 --- Average Short Term Temperature
0x05 0x018 1 36 --- Average Long Term Temperature
0x05 0x020 1 51 --- Highest Temperature
0x05 0x028 1 27 --- Lowest Temperature
0x05 0x030 1 43 --- Highest Average Short Term Temperature
0x05 0x038 1 33 --- Lowest Average Short Term Temperature
0x05 0x040 1 40 --- Highest Average Long Term Temperature
0x05 0x048 1 36 --- Lowest Average Long Term Temperature
0x05 0x050 4 0 --- Time in Over-Temperature
0x05 0x058 1 60 --- Specified Maximum Operating Temperature
0x05 0x060 4 0 --- Time in Under-Temperature
0x05 0x068 1 5 --- Specified Minimum Operating Temperature
0x06 ===== = = === == Transport Statistics (rev 1) ==
0x06 0x008 4 132 --- Number of Hardware Resets
0x06 0x010 4 88 --- Number of ASR Events
0x06 0x018 4 0 --- Number of Interface CRC Errors
0xff ===== = = === == Vendor Specific Statistics (rev 1) ==
0xff 0x008 7 0 --- Vendor Specific
0xff 0x018 7 0 --- Vendor Specific
|||_ C monitored condition met
||__ D supports DSN
|___ N normalized value
Pending Defects log (GP Log 0x0c)
No Defects Logged
SATA Phy Event Counters (GP Log 0x11)
ID Size Value Description
0x000a 2 2 Device-to-host register FISes sent due to a COMRESET
0x0001 2 0 Command failed due to ICRC error
0x0003 2 0 R_ERR response for device-to-host data FIS
0x0004 2 0 R_ERR response for host-to-device 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
Nothing looks out of the ordinary.
With the zdb tool, and someone who is more savvy, they might be able to help figure this out.
My only other “quick” test is to boot into an Ubuntu 24.10 live ISO from a USB stick, and see if the command zpool import -d /dev/disk/by-partuuid detects an available pool to import.
This can maybe rule out TrueNAS.
EDIT: Don’t actually import or mount anything. You’re only testing to see if it can detect an importable pool from a clean Ubuntu 24.10 environment.
with respect to your expertise, i’ve tried the zpool imports thru ubuntu prior to coming to the forums and it returned “no pool available” as well
Then it leaves this:
sounds intimidating and very unfortunate that my issue is deeper than “surface level” all due to a random unknown restart.
im hoping and praying for some support to recover the data. unlucky me for the incident, but lucky me for the forum members support
Forgot to ask. There is no Proxmox or hypervisor or VM involved? Pure bare metal PC with TrueNAS installed directly on it?
correct, just a PC with TrueNAS as the OS
2 Likes
reading upon some of the deeper zdb commands - i should be doing a backup of the disks? in their unreadable state?
do i need to back up both? or only 1 of them since they’re mirrored? I have an uninitialized external harddrive thats 14TB - not sure if i can back up both sda and sdb if they’re 12TB (10.9T)
At this point, we may as well tag @HoneyBadger 
1 Like
I tested these commands on my own SCALE system before recommending them. I have no idea why it doesn’t work on your SCALE system.
Actually yes, it is very useful. The START sector of the partition is not essential. This shows that the disks for the missing pool are visible to Linux, and that the ZFS partitions exist and have partuuids.
However ZFS is unable to find and import the disks for some reason. Please run:
sudo zpool import -d /dev/disk/by-partuuid
and post the results here.
Hello,
really unsure why everything is returning no pools available. it returns as follows
root@truenas[~]# sudo zpool import -d /dev/disk/by-partuuid
no pools available to import
@honeybadger Are you able to help?
1 Like
I really appreciate everyone’s help. My optimism is undoubtedly fading. Things looking dire? Are my options running out?
I would assume that the data is on the disk somewhere just inaccessible
Be optimistic - I could probably make a guess at the command you need to try, but rather than hoping I get it right you would probably be better off waiting to see if Chris can help with less guesswork and more expertise.
1 Like