Cisco UCS B420 M3 Manual

Cisco UCS B420 M3 High Performance Blade Server Installation and

Service Note

Cisco UCS B420 M3 High Performance Blade Server 2

LEDs 3

Buttons 4

Local Console Connector 4

Drive Replacement 5

Blade Server Removal and Installation 7

Secure Digital Cards 10

Removing a Blade Server Cover 11

Working Inside the Blade Server 15

Installing and Enabling a Trusted Platform Module 31

Server Troubleshooting 33

Server Configuration 33

Physical Specifications for the Cisco UCS B420 M3 33

Related Cisco UCS Documentation 35

Obtaining Documentation and Submitting a Service Request 36

Revised: September 28, 2016, OL-22475-01

Cisco UCS B420 M3 High Performance Blade Server

This document describes how to install and service the Cisco UCS B420 M3 High Performance Blade Server, a full-width blade

server meaning up to four of these high-density, four-socket blade servers can reside in a Cisco UCS 5108 Blade Server chassis.

The B420 M3 Blade Server has the following features:

•Up to four Intel Xeon processor E5-4600 processor family CPUs, with up to 32 cores per server

•48 DIMM slots for registered ECC DIMMs, with up to 1.5-TB memory capacity (using 32-GB LRDIMMs)

•3 adapter connectors for up to 160-Gb/s bandwidth:

◦One dedicated connector for the Cisco VIC 1240 modular LAN-on-motherboard (mLOM)

◦Two connectors for Cisco the VIC 1280, VIC Port Expander, or third-party network adapter cards

•Four hot-plug drive bays that support SAS or SATA SSD drives

•LSI 2208R controller that provides RAID 0, 1, 5, and 10 with an optional 1-GB flash-backed write cache

Figure 1: B420 M3 Blade Server Front Panel

Power button and LED8Drive bay 11

Network link status LED9Drive bay 22

Blade health LED10Drive bay 33

Local console connection11Drive bay 44

Reset button access12Left ejector handle5

Beaconing button and LED13Asset Tag

Each server has a blank plastic tag that pulls out of

the front panel so you can add your own asset

tracking label without interfering with the intended

air flow.

Right ejector handle7

LEDs

Server LEDs indicate whether the blade server is in active or standby mode, the status of the network link, the overall health of the

blade server, and whether the server is set to give a blinking blue locator light from the locator button.

The removable drives also have LEDs indicating hard disk access activity and disk health.

Table 1: Blade Server LEDs

DescriptionColorLED

Power off.OffPower

Main power state. Power is supplied to all server components and

the server is operating normally.

Green

Standby power state. Power is supplied only to the service processor

of the server so that the server can still be managed.

If you press and release the front-panel power button, the

server performs an orderly shutdown of the 12 V main

power and goes to standby power state. You cannot shut

down standby power from the front-panel power button.

See the Cisco UCS Manager Configuration Guide for

information about completely powering off the server from

the software interface.

Note

Amber

None of the network links are up.OffLink

At least one network link is up.Green

Power off.OffHealth

Normal operation.Green

Minor error.Amber

Critical error.Blinking Amber

Blinking is not enabled.OffBlue locator button and LED

Blinking to locate a selected blade—If the LED is not blinking, the

blade is not selected. You can control the blinking in UCS Manager

or by using the blue locator button/LED.

Blinking blue 1 Hz

DescriptionColorLED

Inactive.OffActivity

(Disk Drive) Outstanding I/O to disk drive.Green

Rebuild in progress. Health LED will flash in unison.Flashing Amber

4 Hz

Identify drive active.Flashing Amber

4 hz

Can mean either no fault detected or the drive is not installed.OffHealth

(Disk Drive) Rebuild drive active. If the Activity LED is also flashing amber, a

drive rebuild is in progress.

Flashing Amber

4 hz

Fault detected.Amber

Buttons

The Reset button is recessed in the front panel of the server. You can press the button with the tip of a paper clip or a similar item.

Hold the button down for five seconds, and then release it to restart the server if other methods of restarting do not work.

The locator function for an individual server may get turned on or off by pressing the locator button/LED.

The power button allows you to manually take a server temporarily out of service but leave it in a state where it can be restarted

quickly. If the desired power state for a service profile associated with a blade server is set to "off," using the power button or Cisco

UCS Manager to reset the server will cause the desired power state of the server to become out of sync with the actual power state

and the server may unexpectedly shut down at a later time. To safely reboot a server from a power-down state, use the Boot Server

action in Cisco UCS Manager.

Local Console Connector

The local console connector allows a direct connection to a blade server to allow operating system installation and other management

tasks to be done directly rather than remotely. The port uses the KVM dongle cable that provides a connection into a Cisco UCS

blade server; it has a DB9 serial connector, a VGA connector for a monitor, and dual USB ports for a keyboard and mouse. With this

cable, you can create a direct connection to the operating system and the BIOS running on a blade server. A KVM cable ships standard

with each blade chassis accessory kit.

Figure 2: KVM Cable for Blade Servers

VGA connection for a monitor3Connector to blade server local console

connector

2-port USB connector for a mouse and keyboard4DB9 serial connector2

Drive Replacement

Each blade has up to four front-accessible, hot plug capable, 2.5-inch SAS or SATA drive bays. Unused hard drive bays should

always be covered with cover plates to ensure proper cooling and ventilation.

You can remove and install hard drives without removing the blade server from the chassis.

The drives supported in this blade server come with the drive sled attached. Spare drive sleds are not available. A list of currently

supported drives is in the specification sheets at this URL:http://www.cisco.com/c/en/us/products/servers-unified-computing/

ucs-b-series-blade-servers/datasheet-listing.html

Before upgrading or adding a drive to a running blade server, check the service profile in Cisco UCS Manager and make sure the

new hardware configuration will be within the parameters allowed by the service profile.

To prevent ESD damage, wear grounding wrist straps during these procedures.Caution

Removing a Blade Server Hard Drive

To remove a hard drive from a blade server, follow these steps:

Procedure

Step 1 Push the button to release the ejector, and then pull the hard drive from its slot.

Step 2 Place the hard drive on an antistatic mat or antistatic foam if you are not immediately reinstalling it in another server.

Step 3 Install a hard disk drive blank faceplate to keep dust out of the blade server if the slot will remain empty.

Figure 3: Removing and Installing a Drive

Installing a Blade Server Hard Drive

To install a hard drive in a blade server, follow these steps:

Procedure

Step 1 Place the hard drive lever into the open position by pushing the release button.

Step 2 Gently slide the hard drive into the opening in the blade server until it seats into place.

Step 3 Push the hard drive lever into the closed position.

You can use Cisco UCS Manager to format and configure RAID services. For details, see the Configuration Guide for the

version of Cisco UCS Manager that you are using. The configuration guides are available at the following URL: http://

www.cisco.com/en/US/products/ps10281/products_installation_and_configuration_guides_list.html

If you need to move a RAID cluster, see the Cisco UCS Manager Troubleshooting Reference Guide.

Blade Server Removal and Installation

Before performing any internal operations on this blade server, you must remove it from the chassis.

To prevent ESD damage, wear grounding wrist straps during these procedures and handle modules by the

carrier edges only.

Caution

Powering Off a Blade Server

You can also shut down servers remotely using Cisco UCS Manager or CIMC. For details, see the

Configuration Guide for the version of Cisco UCS Manager that you are using. The configuration guides

are available at the following URL: http://www.cisco.com/en/US/products/ps10281/products_installation_

and_configuration_guides_list.html

Tip

Procedure

Step 1 If you are local to the server, check the color of the Power Status LED for each server in the chassis that you want to

power off.

•Green indicates that the server is running and must be shut down before it can be safely powered off. Go to Step 2.

•Amber indicates that the server is already in standby mode and can be safely powered off. Go to Step 3.

Step 2 If you previously enabled front power button control through Cisco UCS Manager, press and release the Power button,

then wait until the Power Status LED changes to amber. Otherwise, you cannot press the front power button because it

is disabled by default.

The operating system performs a graceful shutdown and the server goes to standby mode.

To avoid data loss or damage to your operating system, you should always invoke a graceful shutdown of the

operating system.

Caution

Step 3 (Optional) If you are shutting down all blade servers in a chassis, disconnect the power cords from the chassis to completely

power off the servers.

Step 4 Remove the appropriate servers from the chassis.

Removing a Blade Server

You must decommission the server using Cisco UCS Manager before physically removing the blade server.

Procedure

Step 1 Turn off the blade server using either Cisco UCS Manager.

Step 2 Completely loosen the captive screws on the front of the blade.

Step 3 Remove the blade from the chassis by pulling the ejector levers on the blade until it unseats the blade server.

Step 4 Slide the blade part of the way out of the chassis, and place your other hand under the blade to support its weight.

Step 5 Once removed, place the blade on an antistatic mat or antistatic foam if you are not immediately reinstalling it.

Step 6 If the blade server slot is to remain empty, reinstall the slot divider and install two blade server blanking panels to maintain

proper thermal temperatures and to keep dust out of the chassis.

Installing a Blade Server

For installations of UCS blades with differing widths and heights in a chassis, the guideline is to load the heaviest and largest blades

at the bottom of the chassis. Therefore, if a UCS B460 M4 blade server is present, it should be installed at the bottom, followed by

full-width blades such as the UCS B420 M3 (and M4) above the UCS B460 M4, and then half-width blades such as the UCS B200

at the top of the chassis.

Procedure

Step 1 If necessary, remove the slot divider from the chassis.

a) Simultaneously pull up on the left side catch and push down on the right side catch as shown in callout 1 of the following

figure.

b) Pull the slot divider out of the chassis as shown in callout 2 of the following figure. Keep the slot divider in case it is

needed at another time.

Figure 4: Removing a Slot Divider

To reinstall the slot divider, align it with the dimples in the slot top and bottom and slide it back in until it clicks

into place.

Tip

Step 2 Grasp the front of the blade server and place your other hand under the blade to support it.

Figure 5: Positioning a Blade Server in the Chassis

Step 3 Open the ejector levers in the front of the blade server.

Step 4 Gently slide the blade into the blade slot opening until you cannot push it any farther.

Step 5 Press the ejector levers so that they latch with the edge of the chassis and press the blade server all the way in.

Step 6 Tighten the captive screw on the front of the blade to no more than 3 inch pounds of torque. Tightening with bare fingers

will prevent stripped or damaged captive screws.

Secure Digital Cards

Secure Digital (SD) card slots are provided and one or two SD cards can be populated. If two SD cards are populated, they can be

used in a mirrored mode.

Do not mix different capacity cards in the same server.Note

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