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Zorluk: OrtaResilience, High Availability, and Redundancy

An organization experiences an unexpected municipal power grid failure at its primary data center. Although the rack-mounted Uninterruptible Power Supply (UPS) units immediately supplied emergency battery power to critical servers, all systems abruptly shut down 15 minutes later when the batteries depleted. An investigation revealed that the facility's backup diesel generator successfully started, but utility power was never switched over to generator power. Which of the following components should the security architect install to automate switching between primary utility power and secondary generator power?

  1. Automatic Transfer Switch (ATS)Cevap
  2. B
    Dual Power Distribution Units (PDUs)
  3. C
    Redundant Power Supply Units (PSUs)
  4. D
    Extended Battery Modules for the existing UPS

Cevap

The Automatic Transfer Switch (ATS) is the correct component because it automatically detects a loss of primary utility power and transfers the electrical load to the backup generator.
An Automatic Transfer Switch (ATS) monitors incoming utility power feeds. When primary power drops, the ATS signals the generator to start (if not already running) and automatically switches the electrical load from the dead utility feed to the operational generator feed, preventing UPS battery exhaustion.

Adım Adım Çözüm

1
Analyze the incident details
Identified that UPS battery power functioned properly and the backup generator started, but grid power failed to transition to generator power.
The failure occurred at the power transition layer between grid utility and generator.
2
Evaluate power resilience controls
An Automatic Transfer Switch (ATS) is specifically designed to sense utility power loss and toggle electrical feeds to the emergency generator.
Installing an ATS automates the changeover process without human intervention before UPS batteries drain.

Anahtar Kavram

Power Resiliency and Environmental Redundancy Controls
Tahmini Süre:1m 15s
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