Monitoring plugin check_smart 6.14.2 released: Bugfix release for NVMe drives

Written by Claudio Kuenzler - 0 comments

Published on March 15th 2024 - Listed in Monitoring Hardware

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A new version of check_smart, a monitoring plugin to monitor physical hard drives, solid state drives and NVMe drives, is now available. Version 6.14.2 contains a bug fix for NVMe drives, when used in combination with the "auto" interface (-i auto).

Big thanks and kudos go to Yannick Martin for detecting and fixing the bug!

NVMe attributes not checked when used with -i auto

Before 6.14.2, the plugin would focus on ATA SMART attributes and ignore NVMe attributes, when the plugin was launcehd with -i auto. This lead to not detecting errors in the "Media and Data Integrity Errors" attribute and the plugin would return OK:

root@debian:~# ./check_smart.pl -i auto -g "/dev/nvme[0-9]"
OK: [/dev/nvme0] - Device is clean --- [/dev/nvme1] - Device is clean|

With version 6.14.2, the plugin now correctly identifies a NVMe drive in combination with the -i auto flag and correctly warns:

root@debian:~# ./check_smart.pl -i auto -g "/dev/nvme[0-9]"
WARNING: [/dev/nvme0] - [/dev/nvme0] - Media_and_Data_Integrity_Errors is non-zero (114)[/dev/nvme0] - |

Performance data for single NVMe fixed (when used with -i auto)

The bugfix from Yannick also has a positive outcome for the performance data, too. When checking a single drive (using -d instead of -g), performance data of the drive is shown in the output.

However before 6.14.2, the performance data for a NVMe drive in combination with -i auto would not show up:

root@debian:~# ./check_smart.pl -i auto -d "/dev/nvme0"
OK: Drive  UCS-SDHPCIE 800GB S/N hidden: no SMART errors detected. |

Now with 6.14.2 this looks much better:

root@debian:~# ./check_smart.pl -i auto -d "/dev/nvme0"
OK: Drive  UCS-SDHPCIE 800GB S/N hidden: no SMART errors detected. |Temperature=45 Available_Spare=100 Available_Spare_Threshold=10 Percentage_Used=0 Data_Units_Read=193595329 Data_Units_Written=193011172 Host_Read_Commands=865341327 Host_Write_Commands=3438917475 Controller_Busy_Time=265560 Power_Cycles=57 Power_On_Hours=23962 Unsafe_Shutdowns=44 Media_and_Data_Integrity_Errors=0 Error_Information_Log_Entries=0

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