Werk #18180: smart_ata: Show Power On Hours correctly in all cases

Component

Checks & agents

Title

smart_ata: Show Power On Hours correctly in all cases

Date

Aug 27, 2025

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p11	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

When using the new smart check for (S)ATA drives, the power on hours could be displayed incorrectly.

The new behavior relies on a value provided by smartctl. Therefore the check plugin no longer shows power on hours if smartctl is not able to interpret the raw value.

This should only apply to really new disks and can most likely be fixed by updating the smartctl drive database: https://www.smartmontools.org/browser/src/update-smart-drivedb.8.in

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