Diskplog

Diskplog is a software tool designed to collect, parse, and visualize disk input/output (I/O) logs and related storage metrics. It aims to help system administrators, DevOps, and storage engineers diagnose performance problems, detect failures, and plan capacity across physical and virtual environments. The project emphasizes open standards and interoperability with common Linux-based tools and storage devices.

Diskplog originated as an open-source initiative in the early 2020s, developed by a community of storage engineers and IT professionals. The goal was to provide a unified format and a scalable analysis pipeline for disk-related telemetry. The project is available under an open-source license and welcomes community contributions.

Architecture: The system typically comprises an agent that runs on hosts to collect metrics such as I/O throughput, latency, queue depth, and SMART attributes; a central server or cloud service that ingests data, stores it in a time-series database, and runs the query engine; and a web-based dashboard for visualization. Data can be ingested via parsers for standard outputs (iostat, fio, SMART) and via custom plugins. The architecture supports multi-tenant deployments and role-based access control.

Key features include real-time streaming, historical analysis, configurable alerts, anomaly detection, and export options for CSV or JSON. It also provides dashboards for per-device, per-application, and per-VM analysis, and supports containerized deployment with Kubernetes manifests.

Applications include performance troubleshooting, capacity planning, post-incident analysis, and compliance auditing. Diskplog emphasizes reproducibility of investigations by preserving a consistent log format and time synchronizing across hosts.