Cisco UCS C240 User Manual

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Cisco UCS C240 Server Installation and Service Guide
OL-25761-01z
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Observe these drive population guidelines for optimal performance:
• When populating drives, add drives in the lowest numbered bays first (populate HDD1 to HDD24).
Note Sixteen-drive backplane option: If your SFF drives server has the 16-drive backplane installed, only
the first 16 drive bays are used, with population order HDD1 to HDD16. Keep blanking trays in the
empty eight bays to ensure optimal air flow and cooling.
• Keep an empty drive blanking tray in any unused bays to ensure optimal air flow and cooling.
• You can mix hard drives and solid state drives in the same server. However, You cannot configure
a logical volume (virtual drive) that contains a mix of hard drives and SSDs. That is, when you
create a logical volume, it must contain all hard drives or all SSDs.
Note The large form-factor drives version of the server does not support 3.5-inch solid state drives.
Drive Replacement Procedure
To replace or install a hot-pluggable hard drive, follow these steps:
Tip You do not have to shut down or power off the server to replace hard drives or solid state drives (SSDs)
because they are hot-pluggable.
Step 1 Remove the drive that you are replacing or remove a blank drive tray from an empty bay:
a. Press the release button on the face of the drive tray. See Figure 3-8.
b. Grasp and open the ejector lever and then pull the drive tray out of the slot.
c. If you are replacing an existing drive, remove the four drive-tray screws that secure the drive to the
tray and then lift the drive out of the tray.
Step 2 Install a new drive:
a. Place a new drive in the empty drive tray and replace the four drive-tray screws.
b. With the ejector lever on the drive tray open, insert the drive tray into the empty drive bay.
c. Push the tray into the slot until it touches the backplane, then close the ejector lever to lock the drive
in place.

Cisco UCS C240 Specifications

General

Management	Cisco Integrated Management Controller (CIMC)
Form Factor	2U Rack
Memory	Up to 3TB DDR4
Storage	Up to 24 x 2.5-inch or 12 x 3.5-inch SAS/SATA HDDs or SSDs
Power Supply	Redundant hot-swappable power supplies (various wattage options)

Summary

Preface

Related Documentation

Information on the documentation set for Cisco Unified Computing System (UCS) C-Series rack-mount servers.

Organization

Describes how the guide is structured into chapters and appendices for clarity.

CHAPTER 1 Overview

External Features Overview

Overview of the external features of the Cisco UCS C240 server, including drive bay configurations.

Summary of Server Features

Lists a summary of the key features of the Cisco UCS C240 server, including chassis, processors, memory, and I/O.

CHAPTER 2 Installing the Server

Unpacking and Inspecting the Server

Step-by-step instructions for unpacking and inspecting the server shipment for damage or missing items.

Preparing for Server Installation

Guidelines and requirements for preparing the server installation environment, including rack and electrical codes.

Installing the Server In a Rack

Detailed procedure for installing the server into a rack using slide rails, including cable management arm.

Initial Server Setup

Steps for connecting and powering on the server for initial setup in standalone mode.

Updating the BIOS and CIMC Firmware

Procedures for updating the server's BIOS and CIMC firmware to ensure compatibility and functionality.

CHAPTER 3 Maintaining the Server

Server Monitoring and Management Tools

Overview of tools like CIMC and Server Configuration Utility for monitoring and managing the server.

Status LEDs and Buttons

Explains the meaning of front and rear panel LEDs and buttons for server status indication.

Preparing for Server Component Installation

Steps to prepare the server for installing or replacing components, including required equipment.

Installing or Replacing Server Components

General instructions and overview for installing or replacing various server hardware components.

APPENDIX A Server Specifications

Physical Specifications

Lists the physical dimensions and weight of the Cisco UCS C240 server.

Power Specifications

Details the power supply options, including AC and DC specifications for the server.

APPENDIX B Power Cord Specifications

Supported Power Cords and Plugs

Lists and illustrates the supported power cords and plugs for the Cisco UCS C240 server.

APPENDIX C RAID Controller Considerations

Supported RAID Controllers and Required Cables

Details supported RAID controllers, their requirements, and necessary cabling for the server.

Embedded MegaRAID Controller

Details about the embedded MegaRAID controller, its features, and limitations.

RAID Controller Cabling

Instructions and diagrams for routing cables for RAID controllers and backplanes.

Restoring RAID Configuration After Replacing a RAID Controller

Procedure to restore RAID configuration after replacing a RAID controller.

APPENDIX D Installation for Cisco UCS Integration

Cisco UCS C-Series Server Integration with UCS Manager Guides

Points to integration guides for connecting Cisco UCS C-Series servers with UCS Manager.