Cisco C4200 Bedienungsanleitung

Maintaining the Server Chassis

This chapter contains information about system LEDs and supported component installation or replacement.

•Status LEDs and Buttons, on page 1

•Preparing For Component Installation, on page 6

•Opening the Chassis Compartment Covers, on page 9

•Removing and Replacing Components, on page 11

Status LEDs and Buttons

This section contains information for interpreting LED states.

Front-Panel LEDs

Figure 1: Front Panel LEDs

Maintaining the Server Chassis

Table 1: Front Panel LEDs, Definition of States

StatesLED Name

• Off—No node is detected in the node bay.

• Green—The node is operating normally.

•Amber, steady—The node is in a degraded operational

state (minor fault). For example:

• Power supply redundancy is lost.

• CPUs are mismatched.

• At least one CPU is faulty.

• At least one DIMM is faulty.

•At least one drive in a RAID configuration failed.

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

For example:

• Boot failure

• Fatal processor and/or bus error detected

• Over-temperature condition detected

Node health

The numbers 1 - 4 correspond to the numbered node

bays.

• Green—All power supplies are operating normally.

• Amber, steady—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 status2

Activating the locator beacon on any installed compute

node activates this chassis locator beacon.

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

• Blue, blinking—The unit identification function is

activated.

Locator beacon3

• Green—The system is operating at normal

temperature.

• Amber, steady—One or more temperature sensors

breached the critical threshold.

• Amber, blinking—One or more temperature sensors

breached the non-recoverable threshold.

Temperature status4

Maintaining the Server Chassis

Front-Panel LEDs

• Green—All fan modules are operating properly.

• Amber, steady—One fan has a fault.

• Amber, blinking—Two or more fan modules have a

fault.

Fan status5

• 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 in the software.

SAS/SATA drive fault

NVMe solid state drive (SSD) drive tray

LEDs have different behavior than

SAS/SATA drive trays.

Note

SAS

• 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.

SAS/SATA drive activity

NVMe solid state drive (SSD) drive tray

LEDs have different behavior than

SAS/SATA drive trays.

Note

SAS

• Off—The drive is not in use and can be safely

removed.

• Green—The drive is in use and functioning properly.

• Green, blinking—the driver is initializing following

insertion or the driver is unloading following an eject

command.

• Amber—The drive has failed.

• Amber, blinking—A drive Locate command has been

issued in the software.

NVMe drive fault6

NVMe

• Off—No drive activity.

• Green, blinking—There is drive activity.

NVMe drive activity LED7

NVMe

Rear-Panel LEDs

The power supply LEDs are the only rear-panel LEDs native to the chassis. Compute node LEDs that repeat

on each compute node are also described below. The rear ports and LEDs vary, depending on which adapter

card and PCIe cards are installed.

Maintaining the Server Chassis

Rear-Panel LEDs

Figure 2: Rear Panel LEDs

Table 2: Rear Panel LEDs, Definition of States

StatesLED Name

• Green—The node is operating normally.

•Green, Blinking—The node is in standby power mode.

• Amber—The node is in a degraded condition (for

example, one or more of the following conditions):

• Faulty or mismatched CPUs

• DIMM failure

• Failed drive in a RAID configuration

• Amber, Blinking—The node is in a critical condition

(for example, one or more of the following

conditions):

• Boot failure

• Fatal CPU and/or bus errors detected

• Fatal uncorrectable memory errors

• Excessive thermal conditions

Node Health Status1

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

• Amber—The node is in standby power mode. Power

is supplied only to the Cisco IMC and some

motherboard functions.

• Green—The node is in main power mode. Power is

supplied to all node components.

Node Power button/Node Power status

(One each node)

• Off—Link speed is 10 Mbps.

• Amber—Link speed is 100 Mbps.

• Green—Link speed is 1 Gbps.

Node 1-Gb Ethernet dedicated management link speed

(One each node)

Maintaining the Server Chassis

Rear-Panel LEDs

• Off—No link is present.

• Green—Link is active.

• Green, blinking—Traffic is present on the active link.

Node 1-Gb Ethernet dedicated management link status

(One each node)

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

• Blue, blinking—The unit identification function is

activated.

Node locator beacon

(One each node)

AC power supplies:

•Off—No AC input to any power supplies in the system

(12 V main power off, 12 V standby power off).

• Green, blinking—12 V main power off; 12 V standby

power on.

• Green, solid—12 V main power on; 12 V standby

power on.

• Amber, blinking—Warning threshold detected but 12

V main power on.

• Amber, solid—Critical error detected; 12 V main

power off (for example, over- or under-current,

over-voltage, or over-temperature failure).

• Amber, solid—If no AC input is supplied to one

power supply, the LED lights amber from the shared

system standby bus.

Power supply status

(One bi-color LED each power supply unit)

Internal Diagnostic LEDs in the Chassis

The fan tray in the chassis includes a fault LED for each of the fan modules. The four LEDs are numbered to

correspond to the four numbered fan modules.

Maintaining the Server Chassis

Internal Diagnostic LEDs in the Chassis

Figure 3: Chassis Internal Diagnostic LED Location on Fan Tray

-Fan module fault LEDs on fan tray (one LED for

each fan module)

• Green—Fan is OK.

• Amber—Fan has a fault or is not fully seated.

Preparing For Component Installation

This section includes information and tasks that help prepare the chassis for component installation.

Required Equipment For Service Procedures

The replaceable components in the system chassis require the following tools for removal or installation:

• #1 Phillips-head screwdriver (for opening the supercap compartment cover)

• An electrostatic discharge (ESD) strap or other grounding equipment such as a grounded mat is

recommended to protect components.

Shutting Down and Removing Power From the System

Chassis Power

The C4200 system chassis does not include a physical power button. All of the component replacement in

the chassis can be performed without removing chassis power (assuming two power supplies with 1+1

redundancy).

Maintaining the Server Chassis

Preparing For Component Installation

The chassis top covers are designed to allow access to replaceable components without exposing the user to

high voltages. However, to completely remove power when moving a chassis, you must disconnect all power

cords from the power supplies in the chassis.

Caution

Compute Node Power

Compute nodes include a physical power button so that you can shut down the individual node and any

installed operating system by using the power button on the node or the software interface.

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

Caution

The compute node can run in either of two power modes:

• Main power mode—Power is supplied to all server components and any operating system on your drives

can run.

• Standby power mode—Power is supplied only to the service processor and certain components. It is safe

for the operating system and data to remove the node from the chassis in this mode.

Shutting Down a Node Using the Power Button

Step 1 Check the color of the Power button/LED on the face of the compute node:

• Amber—The node is already in standby mode and you can safely remove it from the chassis.

• Green—The node is in main power mode and must be shut down before you can safely remove it from the chassis.

Step 2 Invoke either a graceful shutdown or a hard shutdown:

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

operating system. Do not power off a node if any firmware or BIOS updates are in progress.

Caution

• Graceful shutdown—Press and release the Power button. The operating system performs a graceful shutdown and

the node goes to standby mode, which is indicated by an amber Power button/LED.

• Emergency shutdown—Press and hold the Power button for 4 seconds to force the main power off and immediately

enter standby mode.

Shutting Down a Node Using The Cisco IMC GUI

You must log in with user or admin privileges to perform this task.

Step 1 In the Navigation pane, click the Chassis tab.

Step 2 On the Chassis tab, click Summary.

Step 3 In the toolbar above the work pane, click the Host Power link.

Maintaining the Server Chassis

Shutting Down a Node Using the Power Button

The Server Power Management dialog opens. This dialog lists all servers that are present in the system.

Step 4 In the Server Power Management dialog, select one of the following buttons for the server that you want to shut down:

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

operating system. Do not power off a node if any firmware or BIOS updates are in progress.

Note

• Shut Down—Performs a graceful shutdown of the operating system.

• Power Off—Powers off the chosen node, even if tasks are running on that server.

It is safe to remove the node from the chassis when the Chassis Status pane shows the Power State as Off for the node

that you are removing.

The physical power button on the node also turns amber when it is safe to remove the node from the chassis.

Shutting Down Using The Cisco IMC CLI

You must log in with user or admin privileges to perform this task.

Step 1 At the server prompt, enter:

Example:

server# scope chassis

Step 2 At the chassis prompt, enter: scope server n

Example:

server/chassis# scope server 1

Step 3 At the chassis/server prompt, enter:

Example:

server/chassis/server# power shutdown

The operating system performs a graceful shutdown and the node goes to standby mode, which is indicated by an amber

Power button/LED.

Shutting Down a Node Using The Cisco UCS Manager Equipment Tab

You must log in with user or admin privileges to perform this task.

Step 1 In the Navigation pane, click Equipment.

Step 2 Expand Equipment > Chassis > Chassis Number > Servers.

Step 3 Choose the node that you want to shut down.

Step 4 In the Work pane, click the General tab.

Step 5 In the Actions area, click Shutdown Server.

Step 6 If a confirmation dialog displays, click Yes.

Maintaining the Server Chassis

Shutting Down Using The Cisco IMC CLI

The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber

Power button/LED.

Shutting Down a Node Using The Cisco UCS Manager Service Profile

You must log in with user or admin privileges to perform this task.

Step 1 In the Navigation pane, click Servers.

Step 2 Expand Servers > Service Profiles.

Step 3 Expand the node for the organization that contains the associated service profile.

Step 4 Choose the service profile of the node that you are shutting down.

Step 5 In the Work pane, click the General tab.

Step 6 In the Actions area, click Shutdown Server.

Step 7 If a confirmation dialog displays, click Yes.

The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber

Power button/LED.

Opening the Chassis Compartment Covers

The server chassis has been designed so that only small compartment covers are opened to allow access to

replaceable components (cooling fans and supercap units for RAID backup).

Never remove the overall chassis cover; open only the compartment covers. The overall cover protects the

user from exposure to hazardous voltages that are present in the chasssis.

Caution

Maintaining the Server Chassis

Shutting Down a Node Using The Cisco UCS Manager Service Profile

Figure 4: Fan and Supercap Compartment Covers

Supercap compartment cover3Fan compartment cover1

Supercap compartment cover securing screw4Fan compartment cover latch and lock2

Opening the Fan Compartment Cover

Step 1 Open the hinged cover:

a) If the cover latch is locked, use a screwdriver to turn the lock 90-degrees counterclockwise to unlock it.

b) Lift on the end of the latch that has the green finger grip. The cover is pushed back as you lift the latch.

c) Open the hinged cover.

Step 2 Close the hinged cover:

a) With the latch in the fully open position, close the hinged cover.

b) Press the cover latch down to the closed position. The cover is pushed forward.

Maintaining the Server Chassis

Opening the Fan Compartment Cover

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