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Scenario #370
Storage
Kubernetes v1.23, Azure Disk CSI

Volume Mount Timeout Due to Slow Cloud API

During a cloud outage, Azure Disk operations timed out, blocking pod mounts.

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What Happened

Pods remained in ContainerCreating due to delayed volume attachment.

Diagnosis Steps
  • 1Event logs: timed out waiting for attach.
  • 2Azure portal showed degraded disk API service.
Root Cause

Cloud provider API latency blocked CSI attach.

Fix/Workaround
• Waited for Azure API to stabilize.
• Used local PVs for critical workloads moving forward.
Lessons Learned

Cloud API reliability is a hidden dependency.

How to Avoid
  • 1Use local volumes or ephemeral storage for high-availability needs.
  • 2Monitor CSI attach/detach durations.
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