I have a RaidZ2 pool with 10 WD Red 4Tb, and its working but unhealthy, i don`t view errors in smart and "only" 3 read error in ada0 disk, Maybe it could be a random controller error? here are the output:
root@bignas:~ # zpool status -v BigNAS
pool: BigNAS
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 10:45:21 with 0 errors on Tue Nov 15 20:53:11 2022
config:
NAME STATE READ WRITE CKS
BigNAS ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
gptid/723cf159-441d-11ea-8b13-d8d3855fxxxx ONLINE 3 0 0
gptid/732b9d81-441d-11ea-8b13-d8d3855fxxxx ONLINE 0 0 0
gptid/7426cb7c-441d-11ea-8b13-d8d3855fxxxx ONLINE 0 0 0
gptid/75442e2a-441d-11ea-8b13-d8d3855fxxxx ONLINE 0 0 0
gptid/765d4196-441d-11ea-8b13-d8d3855fxxxx ONLINE 0 0 0
gptid/777a427f-441d-11ea-8b13-d8d3855fxxxx ONLINE 0 0 0
smartctl 7.2 2020-12-30 r5155 [FreeBSD 12.2-RELEASE-p14 amd64] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Red
Device Model: WDC WD40EFRX-68N32N0
Serial Number: WD-WCC7K6TX17PJ
LU WWN Device Id: 5 0014ee 266f027a1
Firmware Version: 82.00A82
User Capacity: 4,000,787,030,016 bytes [4.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5400 rpm
Form Factor: 3.5 inches
Rotation Rate: 5400 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-3 T13/2161-D revision 5
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Wed Nov 16 10:52:49 2022 CET
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: ( 25) The self-test routine was aborted by
the host.
Total time to complete Offline
data collection: (43560) 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.
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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 463) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x303d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 184 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 158 158 021 Pre-fail Always - 7100
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 30
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 067 067 000 Old_age Always - 24545
10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 30
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 21
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 57
194 Temperature_Celsius 0x0022 126 114 000 Old_age Always - 24
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0
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 Extended offline Aborted by host 90% 24545 -
# 2 Short offline Completed without error 00% 24463 -