My triple M.2 SSD array with RAID-z1 reported checksum error today. The array were in high loads in the past two days, about 4TB random r/w was processed. The SMART check was OK in all drives, is it safe to not replace the drive?
Pool XXX state is ONLINE: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected.
pool: XXX
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 00:42:31 with 0 errors on Sun Nov 2 00:42:31 2025
config:
NAME STATE READ WRITE CKSUM
XXX ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
gptid/aaa ONLINE 0 0 0
gptid/bbb ONLINE 0 0 0
gptid/ccc ONLINE 0 0 3
=== START OF INFORMATION SECTION ===
Model Number: HYV2TBX3
Serial Number: XXXX
Firmware Version: SN11529
PCI Vendor/Subsystem ID: 0x1e4b
IEEE OUI Identifier: 0x000000
Total NVM Capacity: 2,000,398,934,016 [2.00 TB]
Unallocated NVM Capacity: 0
Controller ID: 0
NVMe Version: 1.4
Number of Namespaces: 1
Namespace 1 Size/Capacity: 2,000,398,934,016 [2.00 TB]
Namespace 1 Formatted LBA Size: 512
Namespace 1 IEEE EUI-64: 000000 0000000001
Local Time is: Wed Nov 5 00:02:22 2025 CST
Firmware Updates (0x1a): 5 Slots, no Reset required
Optional Admin Commands (0x0017): Security Format Frmw_DL Self_Test
Optional NVM Commands (0x001f): Comp Wr_Unc DS_Mngmt Wr_Zero Sav/Sel_Feat
Log Page Attributes (0x02): Cmd_Eff_Lg
Maximum Data Transfer Size: 128 Pages
Warning Comp. Temp. Threshold: 90 Celsius
Critical Comp. Temp. Threshold: 95 Celsius
Supported Power States
St Op Max Active Idle RL RT WL WT Ent_Lat Ex_Lat
0 + 6.50W - - 0 0 0 0 0 0
1 + 5.80W - - 1 1 1 1 0 0
2 + 3.60W - - 2 2 2 2 0 0
3 - 0.7460W - - 3 3 3 3 5000 10000
4 - 0.7260W - - 4 4 4 4 8000 45000
Supported LBA Sizes (NSID 0x1)
Id Fmt Data Metadt Rel_Perf
0 + 512 0 0
=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 40 Celsius
Available Spare: 100%
Available Spare Threshold: 1%
Percentage Used: 4%
Data Units Read: 276,527,108 [141 TB]
Data Units Written: 121,912,430 [62.4 TB]
Host Read Commands: 2,524,757,194
Host Write Commands: 2,590,941,895
Controller Busy Time: 9,848
Power Cycles: 51
Power On Hours: 21,970
Unsafe Shutdowns: 20
Media and Data Integrity Errors: 0
Error Information Log Entries: 2
Warning Comp. Temperature Time: 0
Critical Comp. Temperature Time: 0
Temperature Sensor 1: 40 Celsius
Temperature Sensor 2: 31 Celsius
Error Information (NVMe Log 0x01, 16 of 64 entries)
No Errors Logged
Self-test Log (NVMe Log 0x06)
Self-test status: No self-test in progress
No Self-tests Logged
