Hello
I have a ZFS cluster on my Proxmox server. This morning during my visual inspection of the servers, two hard drives showed red in the bay.
	
	
	
		
Indeed ZFS sees the two disks as being out of service but... when I do a SMART test (short) on the disks, I have no error
	
	
	
		
	
	
	
		
I downloaded the test tool for Samsung hard drives, but it tells me that the condition of the drives is good...
	
	
	
		
Do you have any advice for investigating this problem?
THANKS
				
			I have a ZFS cluster on my Proxmox server. This morning during my visual inspection of the servers, two hard drives showed red in the bay.
		code_language.shell:
	
	root@PVE-1:~# zpool status
  pool: klustersynced_zfs
 state: DEGRADED
status: One or more devices could not be used because the label is missing or
    invalid.  Sufficient replicas exist for the pool to continue
    functioning in a degraded state.
action: Replace the device using 'zpool replace'.
   see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-4J
  scan: scrub repaired 0B in 00:37:32 with 0 errors on Sun Feb 11 01:01:33 2024
config:
    NAME                      STATE     READ WRITE CKSUM
    klustersynced_zfs         DEGRADED     0     0     0
      mirror-0                DEGRADED     0     0     0
        sdb                   ONLINE       0     0     0
        12882363701823177512  FAULTED      0     0     0  was /dev/sdc1
      mirror-1                DEGRADED     0     0     0
        16188092585002326977  FAULTED      0     0     0  was /dev/sdd1
        sde                   ONLINE       0     0     0
      sdg                     ONLINE       0     0     0
      mirror-3                ONLINE       0     0     0
        sdh                   ONLINE       0     0     0
        sdi                   ONLINE       0     0     0
      sdf                     ONLINE       0     0     0
	Indeed ZFS sees the two disks as being out of service but... when I do a SMART test (short) on the disks, I have no error
		code_language.shell:
	
	root@PVE-1:~# smartctl -a /dev/sdc1
smartctl 7.3 2022-02-28 r5338 [x86_64-linux-6.5.11-8-pve] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family:     Samsung based SSDs
Device Model:     Samsung SSD 860 PRO 1TB
Serial Number:    S42NNF0KC00967A
LU WWN Device Id: 5 002538 e40ad6c84
Firmware Version: RVM01B6Q
User Capacity:    1 024 209 543 168 bytes [1,02 TB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
TRIM Command:     Available, deterministic, zeroed
Device is:        In smartctl database 7.3/5319
ATA Version is:   ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Fri Feb 16 10:23:32 2024 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:      (   0)    The previous self-test routine completed
                    without error or no self-test has ever
                    been run.
Total time to complete Offline
data collection:         (    0) seconds.
Offline data collection
capabilities:              (0x53) SMART execute Offline immediate.
                    Auto Offline data collection on/off support.
                    Suspend Offline collection upon new
                    command.
                    No Offline surface scan supported.
                    Self-test supported.
                    No 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:      (   2) minutes.
Extended self-test routine
recommended polling time:      (  85) minutes.
SCT capabilities:            (0x003d)    SCT Status supported.
                    SCT Error Recovery Control supported.
                    SCT Feature Control supported.
                    SCT Data Table 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
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   091   091   000    Old_age   Always       -       43100
 12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       10
177 Wear_Leveling_Count     0x0013   063   063   000    Pre-fail  Always       -       814
179 Used_Rsvd_Blk_Cnt_Tot   0x0013   100   100   010    Pre-fail  Always       -       0
181 Program_Fail_Cnt_Total  0x0032   100   100   010    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   010    Old_age   Always       -       0
183 Runtime_Bad_Block       0x0013   100   100   010    Pre-fail  Always       -       0
187 Uncorrectable_Error_Cnt 0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0032   079   059   000    Old_age   Always       -       21
195 ECC_Error_Rate          0x001a   200   200   000    Old_age   Always       -       0
199 CRC_Error_Count         0x003e   100   100   000    Old_age   Always       -       0
235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       8
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       356855281888
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%     43100         -
# 2  Short offline       Completed without error       00%     43100         -
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.
	
		code_language.shell:
	
	root@PVE-1:~# smartctl -a /dev/sdd
smartctl 7.3 2022-02-28 r5338 [x86_64-linux-6.5.11-8-pve] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family:     Samsung based SSDs
Device Model:     Samsung SSD 860 PRO 1TB
Serial Number:    S42NNF0KC00937P
LU WWN Device Id: 5 002538 e40ad6c0c
Firmware Version: RVM01B6Q
User Capacity:    1 024 209 543 168 bytes [1,02 TB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
TRIM Command:     Available, deterministic, zeroed
Device is:        In smartctl database 7.3/5319
ATA Version is:   ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Fri Feb 16 10:29:32 2024 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:      (   0)    The previous self-test routine completed
                    without error or no self-test has ever
                    been run.
Total time to complete Offline
data collection:         (    0) seconds.
Offline data collection
capabilities:              (0x53) SMART execute Offline immediate.
                    Auto Offline data collection on/off support.
                    Suspend Offline collection upon new
                    command.
                    No Offline surface scan supported.
                    Self-test supported.
                    No 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:      (   2) minutes.
Extended self-test routine
recommended polling time:      (  85) minutes.
SCT capabilities:            (0x003d)    SCT Status supported.
                    SCT Error Recovery Control supported.
                    SCT Feature Control supported.
                    SCT Data Table 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
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   091   091   000    Old_age   Always       -       43100
 12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       10
177 Wear_Leveling_Count     0x0013   061   061   000    Pre-fail  Always       -       862
179 Used_Rsvd_Blk_Cnt_Tot   0x0013   100   100   010    Pre-fail  Always       -       0
181 Program_Fail_Cnt_Total  0x0032   100   100   010    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   010    Old_age   Always       -       0
183 Runtime_Bad_Block       0x0013   100   100   010    Pre-fail  Always       -       0
187 Uncorrectable_Error_Cnt 0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0032   075   059   000    Old_age   Always       -       25
195 ECC_Error_Rate          0x001a   200   200   000    Old_age   Always       -       0
199 CRC_Error_Count         0x003e   100   100   000    Old_age   Always       -       0
235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       8
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       378554995800
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%     43100         -
# 2  Short offline       Completed without error       00%     43100         -
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.
	I downloaded the test tool for Samsung hard drives, but it tells me that the condition of the drives is good...
		code_language.shell:
	
	root@PVE-1:~# ./Samsung_SSD_DC_Toolkit_for_Linux_V2.1 -L
================================================================================================
Samsung DC Toolkit Version 2.1.L.Q.0
Copyright (C) 2017 SAMSUNG Electronics Co. Ltd. All rights reserved.
================================================================================================
----------------------------------------------------------------------------------------------------------------------------------------
| Disk   | Path     | Model                     | Serial          | Firmware | Optionrom | Capacity | Drive  | Total Bytes | NVMe Driver |
| Number |          |                           | Number          |          | Version   |          | Health | Written     |             |
----------------------------------------------------------------------------------------------------------------------------------------
| 0      | /dev/sda | Samsung SSD 860 PRO 256GB | S42VNF0M208207J | RVM01B6Q | N/A       |   238 GB | GOOD   | 7.54 TB     | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 1      | /dev/sdb | Samsung SSD 860 PRO 1TB   | S42NNF0KC00975M | RVM01B6Q | N/A       |   953 GB | GOOD   | 176.32 TB   | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 2      | /dev/sdc | Samsung SSD 860 PRO 1TB   | S42NNF0KC00967A | RVM01B6Q | N/A       |   953 GB | GOOD   | 166.17 TB   | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 3      | /dev/sdd | Samsung SSD 860 PRO 1TB   | S42NNF0KC00937P | RVM01B6Q | N/A       |   953 GB | GOOD   | 176.28 TB   | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 4      | /dev/sde | Samsung SSD 860 PRO 1TB   | S42NNF0KC00972K | RVM01B6Q | N/A       |   953 GB | GOOD   | 166.21 TB   | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 5      | /dev/sdf | Samsung SSD 860 PRO 1TB   | S42NNF0KC00961V | RVM01B6Q | N/A       |   953 GB | GOOD   | 173.01 TB   | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 6      | /dev/sdg | Samsung SSD 860 PRO 1TB   | S42NNF0KC00944L | RVM01B6Q | N/A       |   953 GB | GOOD   | 172.03 TB   | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 7      | /dev/sdh | Samsung SSD 860 PRO 1TB   | S42NNF0KC00948E | RVM01B6Q | N/A       |   953 GB | GOOD   | 187.82 TB   | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 8      | /dev/sdi | Samsung SSD 860 PRO 1TB   | S42NNF0KC00980R | RVM01B6Q | N/A       |   953 GB | GOOD   | 187.82 TB   | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 9      | /dev/sdj | Samsung SSD 860 PRO 1TB   | S42NNF0KC00977F | RVM01B6Q | N/A       |   953 GB | GOOD   | 41.02 TB    | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 10     | /dev/sdk | Samsung SSD 860 PRO 1TB   | S42NNF0KC00950H | RVM01B6Q | N/A       |   953 GB | GOOD   | 41.96 TB    | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
| 11     | /dev/sdl | Samsung SSD 860 PRO 256GB | S42VNF0M208196W | RVM01B6Q | N/A       |   238 GB | GOOD   | 7.52 TB     | N/A         |
----------------------------------------------------------------------------------------------------------------------------------------
	Do you have any advice for investigating this problem?
THANKS
			
				Last edited: