Last updated on Friday 14th of April 2023 02:58:40 PM ©VMWare ©ESXi SMART featuresHow to perform a SMART check on your disksS.M.A.R.T. technology allows to retrieve stats on the use of disks, which in turn allows to prevent data loss due to hardware flaws by anticipating them. ©ESXi includes some basic SMART checking that can be performed on the command line in the ©ESXi shell. The tool is very simple and will scan each disk and output basic and useful statistics. The general command to get the SMART table for a given disk is below
esxcli storage core device smart get -d [disk-id]
If you have some disks you would need to issue the above command for every disk in your system. Fortunately we can list all disks in a host by running the command below
esxcli storage core device list
Which will output something like
esxcli storage core device list
t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____0000000000000000000__00000001 Display Name: Local NVMe Disk (t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____0000000000000000000__00000001) Has Settable Display Name: true Size: 1907729 Device Type: Direct-Access Multipath Plugin: HPP Devfs Path: /vmfs/devices/disks/t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____0000000000000000000__00000001 Vendor: NVMe Model: INTEL SSDPE2ME02 Revision: 8DV1 SCSI Level: 7 Is Pseudo: false Status: on Is RDM Capable: false Is Local: true Is Removable: false Is SSD: true Is VVOL PE: false Is Offline: false Is Perennially Reserved: false Queue Full Sample Size: 0 Queue Full Threshold: 0 Thin Provisioning Status: yes Attached Filters: VAAI Status: unsupported Other UIDs: vml.05a1eaf1ef026b3fa253dfce8cdd1b0438f62e7302333e726b733a6f35017214d3 Is Shared Clusterwide: false Is SAS: false Is USB: false Is Boot Device: false Device Max Queue Depth: 1023 No of outstanding IOs with competing worlds: 32 Drive Type: physical RAID Level: NA Number of Physical Drives: 1 Protection Enabled: false PI Activated: false PI Type: 0 PI Protection Mask: NO PROTECTION Supported Guard Types: NO GUARD SUPPORT DIX Enabled: false DIX Guard Type: NO GUARD SUPPORT Emulated DIX/DIF Enabled: false t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____11111111111111111111__00000001 Display Name: Local NVMe Disk (t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____11111111111111111111__00000001) Has Settable Display Name: true Size: 1907729 Device Type: Direct-Access Multipath Plugin: HPP Devfs Path: /vmfs/devices/disks/t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____11111111111111111111__00000001 Vendor: NVMe Model: INTEL SSDPE2ME02 Revision: 8DV1 SCSI Level: 7 Is Pseudo: false Status: on Is RDM Capable: false Is Local: true Is Removable: false Is SSD: true Is VVOL PE: false Is Offline: false Is Perennially Reserved: false Queue Full Sample Size: 0 Queue Full Threshold: 0 Thin Provisioning Status: yes Attached Filters: VAAI Status: unsupported Other UIDs: vml.05bc2e686c6f6eb10c5a5d24dcedee26e6ec436efe92154d494810625aae7e8e64 Is Shared Clusterwide: false Is SAS: false Is USB: false Is Boot Device: false Device Max Queue Depth: 1023 No of outstanding IOs with competing worlds: 32 Drive Type: physical RAID Level: NA Number of Physical Drives: 1 Protection Enabled: false PI Activated: false PI Type: 0 PI Protection Mask: NO PROTECTION Supported Guard Types: NO GUARD SUPPORT DIX Enabled: false DIX Guard Type: NO GUARD SUPPORT Emulated DIX/DIF Enabled: false t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____2222222222222222222__00000001 Display Name: Local NVMe Disk (t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____2222222222222222222__00000001) Has Settable Display Name: true Size: 1907729 Device Type: Direct-Access Multipath Plugin: HPP Devfs Path: /vmfs/devices/disks/t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____2222222222222222222__00000001 Vendor: NVMe Model: INTEL SSDPE2ME02 Revision: 8DV1 SCSI Level: 7 Is Pseudo: false Status: on Is RDM Capable: false Is Local: true Is Removable: false Is SSD: true Is VVOL PE: false Is Offline: false Is Perennially Reserved: false Queue Full Sample Size: 0 Queue Full Threshold: 0 Thin Provisioning Status: yes Attached Filters: VAAI Status: unsupported Other UIDs: vml.05248bd4b1505f99d49d83a174040144d9e69cc6ef9b0e67eb9a23b29591668bfa Is Shared Clusterwide: false Is SAS: false Is USB: false Is Boot Device: false Device Max Queue Depth: 1023 No of outstanding IOs with competing worlds: 32 Drive Type: physical RAID Level: NA Number of Physical Drives: 1 Protection Enabled: false PI Activated: false PI Type: 0 PI Protection Mask: NO PROTECTION Supported Guard Types: NO GUARD SUPPORT DIX Enabled: false DIX Guard Type: NO GUARD SUPPORT Emulated DIX/DIF Enabled: false We can obtain each disk Id from the above output. In this example we have three SSD NVMe Intel disks. To extract the name or disk-id of each disk we can use some simple one liner bash command like this.
esxcli storage core device list | grep "Devfs Path:" | awk -F ': ' '{print $2}' | awk -F '/' '{print $NF}'
Then the above obtained list of disk ids can be passed to the SMART tool binary in a loop. D="$( esxcli storage core device list | grep "Devfs Path:" | awk -F ': ' '{print $2}' | awk -F '/' '{print $NF}' )"; for d in $D do echo -e "\nDISK:$d";esxcli storage core device smart get -d $d done Which will in turn produce this output.
DISK:t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____0000000000000000000__00000001
Parameter Value Threshold Worst Raw ------------------------ ---------- --------- ----- --- Health Status OK N/A N/A N/A Power-on Hours 15161 N/A N/A N/A Power Cycle Count 77 N/A N/A N/A Reallocated Sector Count 0 90 N/A N/A Drive Temperature 21 85 N/A N/A Write Sectors TOT Count 1174029000 N/A N/A N/A Read Sectors TOT Count 99545000 N/A N/A N/A DISK:t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____11111111111111111111__00000001 Parameter Value Threshold Worst Raw ------------------------ --------- --------- ----- --- Health Status OK N/A N/A N/A Power-on Hours 15110 N/A N/A N/A Power Cycle Count 80 N/A N/A N/A Reallocated Sector Count 0 90 N/A N/A Drive Temperature 21 85 N/A N/A Write Sectors TOT Count 371989000 N/A N/A N/A Read Sectors TOT Count 58795000 N/A N/A N/A DISK:t10.NVMe____INTEL_SSDXXXXXXXXXXX_SFF_NVME_2000GB____2222222222222222222__00000001 Parameter Value Threshold Worst Raw ------------------------ --------- --------- ----- --- Health Status OK N/A N/A N/A Power-on Hours 2573 N/A N/A N/A Power Cycle Count 23 N/A N/A N/A Reallocated Sector Count 0 90 N/A N/A Drive Temperature 22 85 N/A N/A Write Sectors TOT Count 495662000 N/A N/A N/A Read Sectors TOT Count 52416000 N/A N/A N/A |
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