I recently upgraded from a hp z420 to a z820 for my machine. The harddrives were throwing massive errors and for some reason we decided to swap the towers out. I had 2 errors right off the bat with this drive then no more since.
For help purposes let me explain exactly what was going on. I copied all the files onto another windows machine and completely reworked the truenas system from the ground up. Several people has had their hand in the settings on that setup and I wanted to know exactly what was set to what. I did a full reinstall and even wiped and reset up the harddrives. Then copied all the files back over.
I started having issues right away with the files themselves. Most notibly the thumbs.db files in the video folders. I would have to create a new folder, copy the video file into that folder then wait a while before I could delete the old folder. Sometimes I could delete the old folder contents then the folder and it would work. Other times I could delete the old folder right away, no problem. Sometimes I even had to close the old folder, open another, close that one then I could delete the old video folder.
With this new machine I did a fill clean install yet again and copied the files over. The drive threw 2 errors almost immediately but then I finished moving the video files and getting rid of the old folders and it has not thrown an error since that Truenas has reported. In the old machine, I was getting 10+ errors a DAY. I have now been up and running on this machine for a couple days with only those initial 2 errors flagging. here is the smartctl log for the drive. Should I replace it or was there something in those files that the drive didn’t like?
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 080 064 044 Pre-fail Always - 90614559
3 Spin_Up_Time 0x0003 090 090 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 92
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 084 060 045 Pre-fail Always - 233223873
9 Power_On_Hours 0x0032 078 078 000 Old_age Always - 19679
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 91
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
188 Command_Timeout 0x0032 100 099 000 Old_age Always - 8590065668
190 Airflow_Temperature_Cel 0x0022 073 050 040 Old_age Always - 27 (Min/Max 25/27)
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 279
193 Load_Cycle_Count 0x0032 077 077 000 Old_age Always - 46207
194 Temperature_Celsius 0x0022 027 050 000 Old_age Always - 27 (0 17 0 0 0)
195 Hardware_ECC_Recovered 0x001a 013 001 000 Old_age Always - 90614559
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 - 160
200 Multi_Zone_Error_Rate 0x0023 100 100 001 Pre-fail Always - 0
240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 6926 (147 93 0)
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 37116943326
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 122381212380
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% 0 -
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.
The above only provides legacy SMART information - try 'smartctl -x' for more