Yes, it’s a single-drive pool. Used for a VM and some jails.
Here’s the SMART info:
$ smartctl -a /dev/ada1
smartctl 7.2 2021-09-14 r5236 [FreeBSD 13.1-RELEASE-p9 amd64] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Crucial/Micron Client SSDs
Device Model: CT2000MX500SSD1
Serial Number: 2422E8B54A8A
LU WWN Device Id: 5 00a075 1e8b54a8a
Firmware Version: M3CR046
User Capacity: 2,000,398,934,016 bytes [2.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
TRIM Command: Available
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-3 T13/2161-D revision 5
SATA Version is: SATA 3.3, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Fri Oct 4 04:07:44 2024 -03
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: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
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: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
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: ( 30) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x0031) SCT Status supported.
SCT Feature Control supported.
SCT Data Table 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 100 100 000 Pre-fail Always - 0
5 Reallocate_NAND_Blk_Cnt 0x0032 100 100 010 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 874
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 3
171 Program_Fail_Count 0x0032 100 100 000 Old_age Always - 0
172 Erase_Fail_Count 0x0032 100 100 000 Old_age Always - 0
173 Ave_Block-Erase_Count 0x0032 100 100 000 Old_age Always - 0
174 Unexpect_Power_Loss_Ct 0x0032 100 100 000 Old_age Always - 1
180 Unused_Reserve_NAND_Blk 0x0033 000 000 000 Pre-fail Always - 139
183 SATA_Interfac_Downshift 0x0032 100 100 000 Old_age Always - 0
184 Error_Correction_Count 0x0032 100 100 000 Old_age Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
194 Temperature_Celsius 0x0022 073 068 000 Old_age Always - 27 (Min/Max 0/32)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_ECC_Cnt 0x0032 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 100 100 000 Old_age Always - 0
202 Percent_Lifetime_Remain 0x0030 100 100 001 Old_age Offline - 0
206 Write_Error_Rate 0x000e 100 100 000 Old_age Always - 0
210 Success_RAIN_Recov_Cnt 0x0032 100 100 000 Old_age Always - 0
246 Total_LBAs_Written 0x0032 100 100 000 Old_age Always - 458627170
247 Host_Program_Page_Count 0x0032 100 100 000 Old_age Always - 9205430
248 FTL_Program_Page_Count 0x0032 100 100 000 Old_age Always - 4421333
SMART Error Log Version: 1
Invalid Error Log index = 0x10 (T13/1321D rev 1c Section 8.41.6.8.2.2 gives valid range from 1 to 5)
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% 870 -
# 2 Short offline Completed without error 00% 869 -
# 3 Short offline Completed without error 00% 846 -
# 4 Short offline Completed without error 00% 822 -
# 5 Short offline Completed without error 00% 798 -
# 6 Extended offline Completed without error 00% 774 -
# 7 Short offline Completed without error 00% 750 -
# 8 Short offline Completed without error 00% 726 -
# 9 Short offline Completed without error 00% 702 -
#10 Short offline Completed without error 00% 678 -
#11 Short offline Completed without error 00% 653 -
#12 Short offline Completed without error 00% 629 -
#13 Extended offline Completed without error 00% 605 -
#14 Short offline Completed without error 00% 581 -
#15 Short offline Completed without error 00% 557 -
#16 Short offline Completed without error 00% 533 -
#17 Short offline Completed without error 00% 508 -
#18 Short offline Completed without error 00% 484 -
#19 Short offline Completed without error 00% 460 -
#20 Extended offline Completed without error 00% 436 -
#21 Short offline Completed without error 00% 412 -
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’m running the long SMART test right now.
The story here is that this pool was single-disk for a long time, and, realizing the error of my ways, I bought another 2TB SSD to make it into a mirror. But it turned out that the new SSD was like 400 MB smaller than the old one, and so TrueNAS wouldn’t let me use it to make a mirror. So I repeated the process with a different 2TB SSD and… same story!
ada3 is the third SSD I’ve bought in an attempt to turn this pool into a mirrored one. It’s actually big enough to do this, but TrueNAS failed twice when trying to add this disk to the pool. The first time the error was [EFAULT] Failed to wipe disk ada1: [Errno 1] Operation not permitted: '/dev/ada3', and the second it was [EFAULT] Unable to GPT format the disk "ada3": gpart: geom 'ada1': File exists.
That debacle is documented here in case you’re interested. I still haven’t been able to solve it, and have just left the disk in in the meantime. (If you do read it, ada3 appears as ada1 there; the disk was on a different SATA port at the time).