Data Domain: Disk Drives Overheating

Summary: This article outlines the most common environmental and hardware-related causes of disk overheating on Data Domain systems and provides guidance for preventing temperature-related alerts. ...

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Symptoms

  • Alert message indicating high disk temperature, for example: 
    Temperature of Encl 1 <serialno> Disk <x> is moderately high: threshold 45°C
  • CLI or Auto-Support output from # disk show reliability-data shows disk temperatures typically above 40°C.

Applies To:

  • All Data Domain systems and shelves
  • All software releases

Cause

The most common causes of disk overheating include:

  • Poor ventilation
  • Inappropriate cabinet design
  • Airflow obstruction
  • Fan failures

Resolution

✅ Environmental Verification Checklist for Disk Overheating Issues

1. Cabinet & Ventilation

  • Confirm cabinet type: Server-grade cabinet (not glass-door networking cabinet).
  • Verify front and rear doors have ≥65% open area for airflow.
  • Ensure cabinet doors and panels are not obstructed.

2. Airflow

  • Check airflow direction: Front-to-rear cooling is unobstructed.
  • Remove any objects blocking airflow at the front or rear of the system.

3. Room Conditions

  • Measure ambient room temperature: Within recommended range (typically 18–27°C).
  • Verify air-conditioning is operational and cooling effectively.

4. Hardware Health

  • Inspect system fans: All fans running normally.
  • Check for any hardware alerts related to cooling or fan failures.

5. Additional Checks

  • Confirm no other equipment in the cabinet is generating excessive heat.
  • Review AutoSupport or CLI (disk show reliability-data) for temperature trends.

Επηρεαζόμενα προϊόντα

Data Domain

Προϊόντα

Data Domain
Ιδιότητες άρθρου
Article Number: 000043560
Article Type: Solution
Τελευταία τροποποίηση: 16 Δεκ 2025
Version:  4
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