Cisco MDS 9000 Series Hardware Installation Guide

Figure 15: Handling the Chassis
Installing and Removing Power Supply Units
This section provides instructions for installing and removing the power supply units in the switch.
Installing Power Supply Units
You can replace one power supply unit (PSU) while the other one provides power to the switch.
Before you begin
• To implement n+n redundancy, each PSU must be connected to a separate power feed. Otherwise, only
one power feed is required.
Cisco MDS 9148V-K9 Switch Hardware Installation Guide
33
Installing the Cisco MDS 9148V-K9 Switch
Installing and Removing Power Supply Units

Cisco MDS 9000 Series Specifications

General

Category	Switch
Operating System	Cisco NX-OS
Ports	Varies by model
Protocols	Fibre Channel (FC), Fibre Channel over IP (FCIP), iSCSI
Redundancy	Redundant supervisors, power supplies, and fans
Management	Cisco Data Center Network Manager (DCNM), CLI, SNMP
Virtualization Support	VSANs (Virtual SANs)
Security Features	Fibre Channel Security Protocol (FC-SP)
Hot Swappable Components	power supplies, fans
Power Supply Options	AC and DC options available