Cisco UCS M4308 Leitfaden

Maintenance

•Status LEDs, page 1

•Preparing for System Component Replacement, page 6

•Replaceable Components Overview, page 9

Status LEDs

This section describes how to diagnose system problems using LEDs

Cisco UCS M4308 Modular Chassis Installation Guide

Front Panel LEDs

Figure 1: Front Panel LEDs

Temperature status LED5System unit identification button and LED1

Power supply status LED6System power status LED2

Network link activity LED7System status LED3

Slot enumeration map8Fan status LED4

•Off—The unit identification LED is not in use.

•Blue, blinking—The unit identification LED is activated.

Unit Identification

Button/LED

•Off—There is no AC power to the system.

•Amber—The system is in standby power mode.

•Green—The system is in main power mode. Power is supplied

to all components.

System power button/power

status LED

Cisco UCS M4308 Modular Chassis Installation Guide

Maintenance

Front Panel LEDs

•Green—The system is running in normal operating condition.

•Amber—The system is in a degraded operational state. For

example:

◦Power supply redundancy is lost.

◦On-board current and voltage warning.

◦Cartridge fault.

◦At least one drive in a RAID configuration failed.

•Amber, blinking—The system is in a critical fault state. For

example:

◦Boot failed.

◦Fatal CPU and/or bus error is detected.

◦System is in an over-temperature condition.

System status3

•Green—All fan modules are operating properly.

•Amber—One or more fan sensors have exceeded a warning

threshold.

•Amber, blinking—One or more fan sensors have exceeded a

critical threshold.

Fan status4

•Green—The system is operating at normal temperature.

•Amber—One or more temperature sensors have exceeded a

warning threshold.

•Amber, blinking—One or more temperature sensors have

exceeded a critical threshold.

Temperature status5

•Green—All power supplies are operating properly.

•Amber—One or more power supplies are in a degraded

operational state.

•Amber, blinking—One or more power supplies are in a critical

fault state.

Power supply status6

•Off—The Ethernet link is idle

•Green—One or more Ethernet ports are link-active.

•Green, blinking—One or more Ethernet ports are traffic-active.

Network link activity7

Cisco UCS M4308 Modular Chassis Installation Guide

Maintenance

Front Panel LEDs

Indicate the location of compute cartridgesSlot enumeration map8

Rear Panel LEDs

Figure 2: Rear Panel LEDs

40-Gb QSFP status LED, lower port7Drive fault LED (on each drive tray)1

40-Gb QSFP status LED, upper port8Drive activity LED (on each drive tray)2

Port not used at this time9Power supply fault LED3

Port not used at this time10Power supply status LED4

Port not used at this time11Unit Identification LED5

Port not used at this time12Unit status LED6

•Off—The hard drive is operating properly.

•Amber—Drive fault detected.

•Amber, blinking—The device is rebuilding.

•Amber, blinking with one-second interval—Drive locate function

activated.

Drive fault1

Cisco UCS M4308 Modular Chassis Installation Guide

Maintenance

Rear Panel LEDs

•Off—There is no hard drive in the hard drive tray (no access, no fault).

•Green—The hard drive is ready.

•Green, blinking—The hard drive is reading or writing data.

Drive activity2

•Off—The power supply is operating properly.

•Amber, blinking—An event warning threshold has been reached, but the

power supply continues to operate.

•Amber—A critical fault threshold has been reached, causing the power

supply to shut down.

Power supply fault LED3

•Green—The power supply is operating properly and supplying DC power

to the system.

•Green, blinking—The power supply is off and it is in cold redundancy

mode.

Power supply status

LED

•Off—The unit identification LED is not in use.

•Blue, blinking—The unit identification LED is activated.

Unit Identification LED5

•Off—There is no AC power to the system.

•Amber—The system is in standby power mode.

•Green—The system is in main power mode. Power is supplied to all

components.

Unit status LED6

•Off—No link or no QSFP.

•Green—Link established.

•Green + amber, blinking—Green indicates that the link is established and

amber indicates activity on the link.

If amber is off, the established link has no activity or activity is below the

minimum threshold.

Amber blinks at three different rates to indicate the traffic rate (slow,

medium, or fast).

When using 4x10G breakout cables, any one link of the four activates

the LEDs in the manner described. Additional links are not

differentiated.

Note

40-Gb QSFP status

LED, port 2 (lower

port)

Cisco UCS M4308 Modular Chassis Installation Guide

Maintenance

Rear Panel LEDs

•Off—No link or no QSFP.

•Green—Link established.

•Green + amber, blinking—Green indicates that the link is established and

amber indicates activity on the link.

If amber is off, the established link has no activity or activity is below the

minimum threshold.

Amber blinks at three different rates to indicate the traffic rate (slow,

medium, or fast).

When using 4x10G breakout cables, any one link of the four activates

the LEDs in the manner described. Additional links are not

differentiated.

Note

40-Gb QSFP status

LED, port 1 (upper

port)

Port not used at this

time

Port not used at this

time

Port not used at this

time

Port not used at this

time

Preparing for System Component Replacement

This section describes how to prepare for component replacement, and it includes the following topics:

Required Equipment

The following equipment is used to perform the procedures in this section:

•Number 2 Phillips-head screwdriver

Powering Off the System

You can invoke a graceful shutdown.

Procedure

Step 1 Press and release the front-panel power button.

Cisco UCS M4308 Modular Chassis Installation Guide

Maintenance

Preparing for System Component Replacement

The chassis shuts down to standby power state, indicated when the power LED turns amber.

Step 2 Disconnect the power cords from all power supplies in your system to completely remove AC power from

the system.

To completely remove all power from the system, you must disconnect all power cords from all

power supplies.

Caution

Powering On the System

When you plug power cords into the power supplies and connect to power, the system powers on to standby

power mode. The front panel power button/LED lights amber. Power is supplied only to the server node

service processor and the cooling fans.

Press and release the power button to boot the system to main power mode, which is indicated when the power

button/LED lights green.

Chassis Cover Removal

This system has a single top cover. Opening this cover gives access to the internal compartment that includes

the fan modules.

Cisco UCS M4308 Modular Chassis Installation Guide

Maintenance

Powering On the System

Procedure

Step 1 Ensure the cover latch locking mechanism is turned counterclockwise to the unlocked position.

Step 2 Lift the cover latch to disengage.

Step 3 Slide cover toward rear of the chasses to remove.

Figure 3: Chassis Cover Removal

Cover3Cover latch1

Cover latch locking mechanism2

Cisco UCS M4308 Modular Chassis Installation Guide

Maintenance

Chassis Cover Removal

Replaceable Components Overview

This section provides an overview of replaceable components of the Cisco UCS M4308 Modular Server.

Components Front Panel

Figure 4: Cisco UCS M4308 Chassis Front Panel

Compute cartridge (slot 5)5Compute cartridge (slot 1)1

Compute cartridge (slot 6)6Compute cartridge (slot 2)2

Compute cartridge (slot 7)7Compute cartridge (slot 3)3

Compute cartridge (slot 8)8Compute cartridge (slot 4)4

Components Back Panel

Figure 5: Cisco UCS M4308 Chassis Back Panel

Power supplies3PCIe 1 (Cisco-supported PCIe cards only)1

Drives 1-4 (2.5 inch SSDs or HDDs)2

Cisco UCS M4308 Modular Chassis Installation Guide

Maintenance

Replaceable Components Overview

Cisco UCS M142 Compute Cartridge Replacement

This section describes how to replace a compute cartridge.

This system supports up to eight single-wide compute cartridges or up to four double-wide cartridges. You

can mix single-wide and double-wide cartridges in the same chassis, but a double-wide cartridge cannot install

into two slots that straddle the center chassis divider.

Cisco UCS M4308 Modular Chassis Installation Guide

Maintenance

Cisco UCS M142 Compute Cartridge Replacement

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