virsh guestinfo calls (one per VM) took ~4s on cold cache, exceeding the dashboard's 3s fetch timeout. Disk stats now refresh in a background thread and return stale/empty data immediately. Also raised dashboard fetch timeout to 8s for cold-cache dominfo calls. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Multi-server system monitor
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