Commands to Display S.M.A.R.T. Data for NVMe Devices in ESXi

Products

• VMware vSAN
• VMware vSphere ESXi

Issue/Introduction

S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is an industry standard built into storage devices for monitoring drive health and predicting hardware failures. When looking for S.M.A.R.T. data from NVMe devices, the standard SAS/SATA commands do not provide full NVMe-specific metrics, necessitating the use of the NVMe namespace command.

Environment

VMware vSphere ESXi
VMware vSAN

Resolution

To view complete S.M.A.R.T. data on NVMe devices, retrieve the standard NVMe S.M.A.R.T. log page as defined in the NVMe specification.

1. Execute the following command against the NVMe adapter:
   esxcli nvme device log smart get -A <adapter_id>


   Example Output

   [root@ESXi:~] esxcli nvme device log smart get -A vmhba1
SMART And Health Info:
   Available Spare Space Below Threshold: false
   Temperature Warning: false
   NVM Subsystem Reliability Degradation: false
   Read Only Mode: false
   Volatile Memory Backup Device Failure: true
   Composite Temperature: 306 K
   Available Spare: 100 %
   Available Spare Threshold: 10 %
   Percentage Used: 0 %
   Data Units Read: 0x60ea0528
   Data Units Written: 0x2f8fbda9
   Host Read Commands: 0x27f7a927fb
   Host Write Commands: 0x12f8084edf
   Controller Busy Time: 0x13522
   Power Cycles: 0x1a
   Power On Hours: 0x3f91
   Unsafe Shutdowns: 0x9
   Media Errors: 0x0
   Number of Error Info Log Entries: 0x2c
   Warning Composite Temperature Time: 0 Mins
   Critical Composite Temperature Time: 0 Mins
   Temperature Sensor 1: 319 K
   Temperature Sensor 2: 309 K
   Temperature Sensor 3: 0 K
   Temperature Sensor 4: 0 K
   Temperature Sensor 5: 0 K
   Temperature Sensor 6: 0 K
   Temperature Sensor 7: 0 K
   Temperature Sensor 8: 0 K

2. For comparison, the standard storage core command gathers SAS/SATA S.M.A.R.T. data and will return varying fields depending on what is returned by the drive itself, but lacks comprehensive NVMe metrics.
   esxcli storage core device smart get -d <device_id>



   Example Output

   [root@ESXi:~] esxcli storage core device smart get -d t10.NVMe____Dell_NVMe_ISE_PS1030_MU_U.2_6.4TB_______C8341036002EE4AC
Parameter                 Value    Threshold  Worst  Raw
------------------------  -------  ---------  -----  ---
Health Status             WARNING  N/A        N/A    N/A
Power-on Hours            16273    N/A        N/A    N/A
Power Cycle Count         26       N/A        N/A    N/A
Reallocated Sector Count  0        90         N/A    N/A
Drive Temperature         33       75         N/A    N/A