Cisco UCS C420 Server Installation and Service Guide
Overview
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Table of Contents

Overview of the Cisco UCS C420 Server

Overview of the Cisco UCS C420 Server

This chapter provides an overview of the Cisco UCS C420 server. The figures in this chapter show an overview of external server features. Internal server features are shown in Figure 3-5.

Figure 1-1 shows the front panel features of the server.

Figure 1-1 Front Panel Features

 

 

1

Modular drive bay 1

8

System status LED

2

Operations panel

9

Fan status LED

3

Modular drive bay 2

10

Temperature status LED

4

Hard drive fault LED

11

Power supply status LED

5

Hard drive activity LED

12

Network link activity LED

6

Power button/LED

13

Asset tag (serial number)

7

Identification button and LED

14

KVM console connector (used with a KVM cable that provides two USBs, one VGA, and one serial connector)

Figure 1-2 shows the rear panel features of the server.

Figure 1-2 Rear Panel Features

 

 

1

Horizontal PCIe slot 1 on riser card
(full-height, half-length, x16, with NCSI)

9

Rear system fault LED

2

Power supply 1

10

VGA video connector

3

RS-232 serial connector

11

Optional RAID controller cards
(up to 2, supported in designated
PCIe slots 3 and 5)

4

PCIe slots 2 through 6 on motherboard
(five half-height, half-length, x8 slots).
PCIe slot 4 supports NCSI.

12

1-Gb Base-T LOM ports (four, RJ-45)

5

Horizontal PCIe slot 7 on riser card
(full-height, half-length, x16, with NCSI)

13

Rear identification button and LED

6

Power supply 2

7

USB 2.0 ports (three)

8

10/100/1000 dedicated management Ethernet port (RJ-45)

Table 1-1 lists the features of the server.

.

Table 1-1 Cisco UCS C420 Server Features

Chassis

Two rack-unit (2RU) chassis.

Processors

Two or four Intel Xeon E5-4600 Series processors.

Memory

The server has 48 DIMM sockets on the motherboard. Each of the four CPUs can support 12 DIMMs.

Multi-bit error protection

This server supports multi-bit error protection.

Storage

Drives are installed into configurable (one or two) drive bay modules that provide hot-pluggable front-panel access.

Each drive bay module can hold up to eight 2.5-inch SAS1 or SATA2 hard drives or solid state drives, for a total of 16 drives.

Cisco Flexible Flash drive

The server includes one internal Cisco Flexible Flash drive (SD card). A second drive can be installed.

This drive is preloaded with four virtual drives. The four virtual drives contain, respectively, the Cisco Server Configuration Utility, the Cisco Host Upgrade Utility, the Cisco C-Series server drivers set, and a blank VD on which you can install an OS or a hypervisor.

Disk Management

For a list of supported RAID controller options, see RAID Controller Considerations.

There are also two mounting points inside the chassis for the optional LSI RAID battery backup units that can be used with the controller cards.

RAID Backup

There are two mounting points inside the chassis (on the removable air baffle) that can be used for Supercap power module backup units.

PCIe I/O

Seven PCIe3 expansion slots:

  • Two full-height, half-length, x16 horizontal slots on riser cards
  • Five half-height, half-length, x8 slots on motherboard

See Replacing a PCIe Card for slot specifications.

InfiniBand

The bus slots in this server support the InfiniBand architecture.

Network and management I/O

The server provides these rear panel connectors:

  • One 10/100/1000 dedicated management Ethernet port
  • Four 1-Gb Base-T Ethernet ports
  • One RS-232 serial connector
  • One 15-pin VGA4 connector
  • Three USB5 2.0 connectors

The server also has one front-panel KVM connector that is used with the included KVM cable, which provides two USBs, one VGA, and one serial connector.

WoL

The 1-Gb Base-T Ethernet LAN ports support the wake-on-LAN (WoL) standard.

Power

Two power supplies, 1200 W each.
Redundant as 1+1.

ACPI

This server supports the advanced configuration and power interface (ACPI) 4.0 standard.

Cooling

Six fan modules, hot-swappable, redundant.

In addition, there is 1 fan in each power supply.

Baseboard management

Pilot III BMC, running Cisco Integrated Management Controller (CIMC) firmware.

Depending on your CIMC settings, the CIMC can be accessed through the
10/100/1000 dedicated management ports, the 1-Gb LOM ports, or a Cisco virtual interface card.

Video

Resolution up to 1600 x1200, 16 bpp at 60 Hz. Up to 256 MB of video memory.

1.SAS = serial attached SCSI

2.SATA = serial advanced technology attachment

3.PCIe = peripheral component interconnect express

4.VGA = video graphics array

5.USB = universal serial bus