Hi, I have two 8TB hdd in Turris Omnia NAS (I have Turris NAS kit). Each drive is divided into two 4TB partitions. On each drive first partition is BtrFS and second is ext4. It was meant to have RAID1 on first partitions.
Lately I am experiencing strange issue. Sdb is loosing UUIDs.
After some time when everything works as expected, sub suddenly looses UUID and can’t be accessed anymore. Sda is ok but sdb looses UUIDs and I need to restart Turris to be able use sub again.
It started after I “turned off” my Turris before longer vacation by disconnecting it out from electricity. After my arrival I turned it back on and the next day I found out that RAID1 is corrupted (at that time I had extč on all partitions). After some investigation I concluded that one partition failed somehow and was synced into to second partition so both partitions were corrupted and no data could be saved.
I am running lsblk -o NAME,LABEL,UUID each 5 minutes to find out when UUIDs are lost and this is the last occurrence (sda1 and sdb1 are BtrFS, sda2 and sdb2 are ext4, sdc is usb drive dedicated for lxc virtuals):
Does anybody experienced the same issue or know what should I test?
I tried factory reset on Turris, I changed both hdds (originally I had two 4TB now I have two 8TB), tried turn of all lxc containers, hdd-idle, removing mdadm raid1 and now syncing files by rsync command once per day, etc. Nothing helped.
Now I am thinking about hardware issue - maybe driver for sub is broken somehow. Does anybody know how if it is possible to test hardware driver?
Sounds like broken drive to me. I would upgrade to new drives.
What does dmesg say? Maybe smartctl -a /dev/sdb has some useful information? You can also try smartctl -t short /dev/sdb to run a self-test on the drive.
=== START OF INFORMATION SECTION ===
Model Family: Seagate IronWolf
Device Model: ST8000VN004-2M2101
Serial Number: WKD09GE2
LU WWN Device Id: 5 000c50 0c4b6ef29
Firmware Version: SC60
User Capacity: 8,001,563,222,016 bytes [8.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 7200 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-4 (minor revision not indicated)
SATA Version is: SATA 3.3, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Wed Oct 21 09:39:56 2020 CEST
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: (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: ( 712) 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 FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 084 064 044 Pre-fail Always - 238308458
3 Spin_Up_Time 0x0003 082 081 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 29
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 071 060 045 Pre-fail Always - 12090327
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 630
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 12
18 Unknown_Attribute 0x000b 100 100 050 Pre-fail Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 062 050 040 Old_age Always - 38 (Min/Max 31/42)
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 1
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 141
194 Temperature_Celsius 0x0022 038 050 000 Old_age Always - 38 (0 22 0 0 0)
195 Hardware_ECC_Recovered 0x001a 084 064 000 Old_age Always - 238308458
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 - 9
240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 58 (171 118 0)
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 14796253396
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 16973145769
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.
Everything is freshly installed.
Problems are with sdb only.
Result in dmesg is repeated many times with the same sector numbers.
After I have tried everything what I could think of, I ordered a new driver - I am suspecting hardware error.
After roughly 24h running with a new miniPCI-e sata driver and both new sata cables everything looks good. Hope it stays that way:) If not, I will get some separate NAS rack.