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
I see
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.
Many thanks
Chris
I have seen this reported before. the current value of reallocated sectors is still 0, so I wouldn't be too concerned about it. Let me see if I can find an explanation internally
https://en.wikipedia.org/wiki/S.M.A.R.T.#Known_ATA_S.M.A.R.T._attributes
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.
Kind Regards
Yes, not sure why this happens to be honest, something does trigger a warning, but the counter looks normal to me, which is strange.
Hi, I also receive this warning on 2 drives:
2022-06-12T16:12:39.546Z smartd[526564]: [warn] t10.NVMe____Samsung_SSD_980_PRO_1TB_________________A0D5B021B3382500: REALLOCATED SECTOR CT below threshold (0 < 90)
2022-06-12T17:44:28.466Z smartd[133353]: [warn] t10.NVMe____WDS500G2X0C2D00L350______________________414786448B441B00: REALLOCATED SECTOR CT below threshold (0 < 90)
Found this Post, complaining about the same behavior with supported device: Dell Express Flash PM1725b 1.6TB https://communities.vmware.com/t5/ESXi-Discussions/NVMe-health-monitoring/td-p/2312062 "Reallocated Sector Count" is not dispalyed for my NVMe drive when I use smartctl under Linux there is no such a value under === START OF SMART DATA SECTION ===. This should be removed? The drive smart log and device stats looks good in both cases.