Did you use this SSD in another system, with more than one partitions?
Because, if youdid, it is possible, that only that partition is worn out.
(Once I used 2x Samsung 470, 64GB SSDs in a Ubuntu syste, using a 2x 8GB mirrored partition as the ZIL for the ZFS array.
That part has worn out in like 1-2 years and made the SSDs toast. )
I thought the firmware was MEANT to distribute writes across all cells
That is most definitely the case for newer controllers but I have no idea if that was already a standard feature 15 years ago in Samsung 470 drives which were mentioned here.
Hello,
i got this error in the TrueNAS GUI a few days ago:
Kritisch
Boot pool status is ONLINE: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected..
2024-06-07 12:55:10 (Europe/Berlin)
Ausblenden
I got an email from truenas this night with following text:
ZFS has finished a scrub:
eid: 132
class: scrub_finish
host: FreeNAS
time: 2024-06-10 03:45:25+0200
pool: boot-pool
state: ONLINE
status: One or more devices has experienced an unrecoverable error. An
attempt was made to correct the error. Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
using 'zpool clear' or replace the device with 'zpool replace'.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-9P
scan: scrub repaired 0B in 00:00:24 with 0 errors on Mon Jun 10 03:45:25 2024
config:
NAME STATE READ WRITE CKSUM
boot-pool ONLINE 0 0 0
sdc3 ONLINE 2 0 0
errors: No known data errors
Has the new ssd again a problem?
This is the replaced boot device?
It would be very unfortunate (and unlikely if bought new) that you’ve got a second bad boot device so quickly.
Could you provide the smartctl output?
It might just be a bad cable connection.
Or a bad cable at this rate…
This is not the same problem you had before. This is a ZFS error, not the drive telling you it is dying.
As @essinghigh said, it could be a bad data cable (that is the best outcome for a hardware repair) and you should post the results of the smartctl output.
Did you just upgrade TrueNAS? Did you reboot or power off/on the system recently? I’m looking at things that may cause a ZFS READ error.
You should run a Scrub on the boot pool, if it comes back looking the same (no known data errors) then you will need to clear the error zpool clear boot-pool and once done, run another scrub. Should not take long on a boot-pool. And then watch ro the problem to come back and see if you can identify what might have caused it.
You may want to replace the data cable (unless this is a NVMe) regardless.
root@FreeNAS:~# smartctl -a /dev/sdc
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.6.29-production+truenas] (local bu ild)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: INTENSO SSD
Serial Number: 1642312010001482
Firmware Version: W0714A0
User Capacity: 128,035,676,160 bytes [128 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
TRIM Command: Available
Device is: Not in smartctl database 7.3/5528
ATA Version is: ACS-2 T13/2015-D revision 3
SATA Version is: SATA 3.2, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Wed Jun 12 08:34:12 2024 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: (0x02) Offline data collection activity
was completed without error.
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: ( 120) seconds.
Offline data collection
capabilities: (0x11) SMART execute Offline immediate.
No Auto Offline data collection support.
Suspend Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
No Selective Self-test supported.
SMART capabilities: (0x0002) Does not save 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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 10) minutes.
SCT capabilities: (0x0001) SCT Status supported.
SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_ FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x0032 100 100 050 Old_age Always - 0
5 Reallocated_Sector_Ct 0x0032 100 100 050 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 050 Old_age Always - 376
12 Power_Cycle_Count 0x0032 100 100 050 Old_age Always - 5
160 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 0
161 Unknown_Attribute 0x0033 100 100 050 Pre-fail Always - 100
163 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 7
164 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 2868
165 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 29
166 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 1
167 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 11
168 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 5050
169 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 100
175 Program_Fail_Count_Chip 0x0032 100 100 050 Old_age Always - 0
176 Erase_Fail_Count_Chip 0x0032 100 100 050 Old_age Always - 0
177 Wear_Leveling_Count 0x0032 100 100 050 Old_age Always - 0
178 Used_Rsvd_Blk_Cnt_Chip 0x0032 100 100 050 Old_age Always - 0
181 Program_Fail_Cnt_Total 0x0032 100 100 050 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 100 100 050 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 050 Old_age Always - 4
194 Temperature_Celsius 0x0022 100 100 050 Old_age Always - 40
195 Hardware_ECC_Recovered 0x0032 100 100 050 Old_age Always - 0
196 Reallocated_Event_Count 0x0032 100 100 050 Old_age Always - 0
197 Current_Pending_Sector 0x0032 100 100 050 Old_age Always - 0
198 Offline_Uncorrectable 0x0032 100 100 050 Old_age Always - 0
199 UDMA_CRC_Error_Count 0x0032 100 100 050 Old_age Always - 0
232 Available_Reservd_Space 0x0032 100 100 050 Old_age Always - 100
241 Total_LBAs_Written 0x0030 100 100 050 Old_age Offline - 12562
242 Total_LBAs_Read 0x0030 100 100 050 Old_age Offline - 5885
245 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 24552
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% 295 -
# 2 Short offline Completed without error 00% 127 -
Selective Self-tests/Logging not supported
The above only provides legacy SMART information - try 'smartctl -x' for more
Made a scrub and got the email again.
Then i run the command zpool clear boot-pool
Run another scrub now i dont get an error anymore
Thanks
If it will happen again, i will replace the sata cable
At first glance, SMART data looks good.