Hi - I'm seeing the following warnings on ESXi 7.0u2 fairly frequently for both of my Samsung 970 EVO Plus 1TB NVMe drives. Both are connected to a AOC-SLG3-2M2 on a X11SDV-8C+-TLN2F board.
smartd: [warn] t10.NVMe____Samsung_SSD_970_EVO_Plus_1TB____________5702921152382500: REALLOCATED SECTOR CT below threshold (0 < 90)
Seems unlikely both drives are faulty...
I presume this is just a notification message and can be ignored? - It seems to indicate that the reallocated sector count is below the threshold - so is presumably operating normally.
If I run esxcli storage core device smart get -d=t10.NVMe____Samsung_SSD_970_EVO_Plus_1TB____________5702921152382500 for both drives
Parameter Value Threshold Worst Raw
------------------------ ----- --------- ----- ---
Health Status OK N/A N/A N/A
Power-on Hours 1382 N/A N/A N/A
Power Cycle Count 8 N/A N/A N/A
Reallocated Sector Count 0 90 N/A N/A
Drive Temperature 57 85 N/A N/A
The motherboard is running on the latest BIOS and there are no firmware updates for the AOC-SLG3-2M2.
I would probably check if there's new firmware for the device... that may resolve problems, other than that I have not seen any internal notes on this problem.
Nope - no newer firmware for the drive after checking
esxcli nvme device get -A vmhba3 | egrep "Serial Number|Model Number|Firmware Revision"
Perhaps the smartd notifications in syslog.log should be changed from [warn] to [info] if the thresholds are within normal operating parameters for future ESXi releases.