← Course contents · Part 4

· Visual lesson · Session 37 of 56


What happens when hardware fails?

An error message is evidence, not a verdict that the GPU card is broken. Software, links, power, and cooling can also cause failures.

Picture the idea

From error to trustworthy capacity

  1. Capture the evidence

    Device identity, time, jobs, and logs

  2. Contain suspect capacity

    Follow the approved allocation procedure

  3. Diagnose and repair

    Use the supported checks

  4. Validate before release

    Health plus representative workload

A reboot that clears an alarm is not a substitute for the return-to-service checks.

Identify and contain

Record the stable device identity, host, jobs, timestamps, and related events. Preserve logs.

For NVIDIA errors, use the relevant Xid guidance rather than interpreting every code the same way. A corrected memory-error count is not a universal replacement threshold.

If the resource is suspect, follow the scheduler’s process to prevent new placement and handle running jobs appropriately.

Look beyond one device

Several GPUs failing together may share a dependency. A failure following one application across hosts suggests another investigation.

Neither pattern proves a cause, but both are more useful than repeatedly rebooting.

Try it yourself

A fictional node fails three jobs. Each reboot looks successful for a while. What should happen before a fourth job?

Check your answer

Contain the suspect capacity, inspect the history, and arrange approved diagnostics. Return it only after the required health and workload checks. A live reset is disruptive, not a harmless experiment.

Sources and further reading

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