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PowerScale Exporter

A Go exporter for Dell PowerScale (OneFS). It authenticates to the OneFS platform API, collects broad cluster, node, protocol, quota, snapshot and capacity metrics, and exposes them via both a Prometheus /metrics endpoint and an optional OTLP metric push — both fed from one shared snapshot.

The powerscale_ metric prefix matches dell/csm-metrics-powerscale, so existing CSM Grafana dashboards work without modification.

Features

  • Dual export — Prometheus pull (/metrics) and an optional OTLP metric push, fed from one shared snapshot.
  • Broad OneFS coverage — cluster, nodes, protocols (NFS/SMB export & share counts), quotas, snapshots, and capacity. Combines typed OneFS resources with the raw statistics API (curated stat keys plus the protocol summary).
  • Multi-cluster — one process monitors many OneFS clusters; every metric carries a cluster label.
  • Operational — one shared gopowerscale session per cluster, graceful per-cluster degradation (an unreachable cluster is marked down without taking the exporter down), hot config reload (SIGHUP + file watch), snapshot-based /health JSON plus always-200 /livez//readyz probes, and optional OTLP tracing.
  • CSM-compatible naming — the powerscale_ prefix matches Dell's csm-metrics-powerscale so existing dashboards work.

Where to next

How it works

A single background collection loop polls every configured cluster on collection.interval and publishes an immutable snapshot. Both export paths read the latest snapshot rather than fetching on scrape, which decouples OneFS API load from the number of scrapers and the OTLP push cadence.

Per-second gauges

iops and bandwidth metrics are already per-second gauges — aggregate them with sum/avg in PromQL, never rate().