Dell PowerVault ME5 Storage

Monitors Dell PowerVault ME5 series storage systems through the controller HTTPS management API. State for every object comes from the array's own health and status values, and every check has a configurable ruleset.

Includes the following checks:

• System health and management-controller redundancy
• System performance: IOPS, throughput, and response time, each split into read and write, plus controller CPU and write cache use
• Health alerts: unresolved critical and warning alerts, with the affected component, reason, and the array's recommended action
• Controller health, failover, and cache policy
• Controller firmware
• Host ports: health, link status, speed, throughput, IOPS, response time, and queue depth
• Enclosures: health, status, and power draw, one service per enclosure
• Disk groups: RAID status, spares, and background jobs
• Storage pools: capacity via the built-in Filesystem ruleset, with trend and forecast
• Volumes: health, capacity, preferred-path ownership, throughput, IOPS, and cache hit ratios
• Physical disks: health, SMART status, SSD life, temperature, power-on hours, throughput, IOPS, queue depth, and predictive error counters (media errors, bad blocks, block reassignments, spin-up retries, I/O timeouts, no-response events)
• Power supplies
• Fans
• Temperature sensors, with state taken from the array's own per-sensor verdict and the built-in Temperature ruleset available for custom levels
• Supercapacitor packs: charge, capacitance, internal resistance, and cell voltages, one service per controller
• Voltage and current sensors
• Unwritable cache
• Snapshot protection: snapshot count, data, and newest snapshot age together with the schedule that creates them, with freshness and overdue alerting
• Connected hosts

1.0.0 initial release: system, controller, firmware, host port, disk group, pool, volume, disk, power supply, fan, temperature, sensor, unwritable cache, snapshot, and connected-host checks

1.1.0 added host port I/O statistics (throughput, IOPS, response time, and queue depth) to the host port check

1.2.0 added system performance, health alerts, enclosure, and supercapacitor checks; added volume and disk performance with cache hit ratios and predictive error counters; snapshot schedules are now reported with each volume's snapshots.