Werk #18478: ibm_storage_ts_drive: handle empty string for read/write errors

Component Checks & agents
Title ibm_storage_ts_drive: handle empty string for read/write errors
Date Oct 20, 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)
2.4.0p15
Not yet released
Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.2.0p47
Not yet released
Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

A customer reported that IBM TS3100 tape library devices return an empty string instead of the number of recovered write errors. This happens sporadically and the correct number of recovered write errors is reported in the next check cycle.

Prior to this werk the plugin was crashing in that situation, now the check will return state "unknown" and the summary will indicate that it received an empty string.

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