---
type: Monitoring Guide
title: "How to Monitor RAID Array Status via SNMP"
description: "Poll the RAID controller's vendor MIB for logical-drive and physical-disk status, and alert immediately on a degraded array through rebuild."
resource: "https://snmp-monitoring.info/monitoring/hardware/raid/"
tags: [monitoring]
timestamp: 2026-07-11T00:00:00Z
---

# How to Monitor RAID Array Status via SNMP

Poll the RAID controller's vendor MIB for logical-drive and physical-disk status, and alert immediately on a degraded array through rebuild.

## Related concepts

- Up: [SNMP Hardware Monitoring: Temperature, Fans, Power & RAID](/monitoring/hardware/index.md)

## Frequently asked questions

### Can SNMP monitor RAID status?

Yes, but only through the RAID controller's vendor-specific enterprise MIB — MegaRAID, Dell PERC/OpenManage, HP Smart Array and similar, all under 1.3.6.1.4.1. The standard MIBs don't carry array health, so you poll the controller's logical-drive and physical-disk status objects.

### What OID is RAID status?

There isn't a universal one — RAID status is controller-specific. The logical/virtual drive status and physical-disk status live in your controller vendor's enterprise MIB, and the enum values are defined there too. Verify the exact OID against that vendor's MIB rather than assuming one applies across controllers.

### How do I alert on a degraded array?

Poll the logical-drive status enum and alert immediately on any non-optimal state, because degraded means redundancy is already lost. Include the physical-disk status so the alert names the failed member, and keep the incident open through rebuild until the drive returns to optimal.

### Does HOST-RESOURCES-MIB show RAID health?

No. HOST-RESOURCES hrStorageTable reports the array's capacity and usage but not its redundancy state — a degraded array looks identical to a healthy one there. RAID health comes only from the controller's enterprise MIB.

## Source

Concept generated from https://snmp-monitoring.info/monitoring/hardware/raid/ — the SNMP Monitoring vendor-neutral knowledge base. Content is limited to what that page states (no external claims added here).