SSD disk errors - Samsung

TrueNAS General
1

So I have been running Core for about 4 years now with pretty much no issues!

However now I am seeing SMART errors and possibly other errors on many of the SSD’s.

The pool is 6 2TB Samsung EVO SSD’s RAIDZ1.

Side note: I hear CORE is pretty much going away, so I am planning to migrate to Scale/Community edition. My plan for this is to simply backup everything in my pool to external USB drive then build Scale from scratch!

However first up is dealing with these drive errors.

3 of the 6 have read errors when viewing them from the Dashboard and looking at the disks. The others have errors under notifications such as:
" CRITICAL

Device: /dev/ada5, ATA error count increased from 100 to 105.

CRITICAL

Pool state is ONLINE: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected.

2025-03-02 12:09:38 AM (America/Los_Angeles)

So does this sound like HW issues that I need to work with Samsung on replacement on?

I ran a manual scrub of pool before and its also automatically run but still see these errors.

I will post SMART results next.

2

Here is the output of “smartctl -a /dev/ada4”

FreeBSD 13.1-RELEASE-p9 n245433-9dc2dc9b081 TRUENAS

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    All rights reserved.
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    files copyrighted by (c) iXsystems, Inc.

    For more information, documentation, help or support, go here:
    http://truenas.com

Welcome to TrueNAS

Warning: the supported mechanisms for making configuration changes
are the TrueNAS WebUI and API exclusively. ALL OTHERS ARE
NOT SUPPORTED AND WILL RESULT IN UNDEFINED BEHAVIOR AND MAY
RESULT IN SYSTEM FAILURE.

root@truenas[~]# smartctl -a /dev/ada4
smartctl 7.2 2021-09-14 r5236 [FreeBSD 13.1-RELEASE-p9 amd64] (local build)

=== START OF INFORMATION SECTION ===
Model Family: Samsung based SSDs
Device Model: Samsung SSD 870 EVO 2TB
Firmware Version: SVT01B6Q
User Capacity: 2,000,398,934,016 bytes [2.00 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 [for details use: -P show]
ATA Version is: ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is: SATA 3.3, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Apr 17 20:48:48 2025 PDT
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: ( 160) 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 049 049 010 Pre-fail Always - 1166
9 Power_On_Hours 0x0032 092 092 000 Old_age Always - 35596
12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always - 5
177 Wear_Leveling_Count 0x0013 099 099 000 Pre-fail Always - 23
179 Used_Rsvd_Blk_Cnt_Tot 0x0013 049 049 010 Pre-fail Always - 1166
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 049 049 010 Pre-fail Always - 1166
187 Uncorrectable_Error_Cnt 0x0032 099 099 000 Old_age Always - 23
190 Airflow_Temperature_Cel 0x0032 071 052 000 Old_age Always - 29
195 ECC_Error_Rate 0x001a 199 199 000 Old_age Always - 23
199 CRC_Error_Count 0x003e 100 100 000 Old_age Always - 0
235 POR_Recovery_Count 0x0012 099 099 000 Old_age Always - 3
241 Total_LBAs_Written 0x0032 099 099 000 Old_age Always - 12391522858

SMART Error Log Version: 1
ATA Error Count: 23 (device log contains only the most recent five errors)
CR = Command Register [HEX]

3

Please use formatted text (</> button) for posting command outputs.
But, yes, your disks are failing and it’s time to backup everything and rebuild on new drives.