Cisco UCS M4308 Guía
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
1
•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
2
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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
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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
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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
4
•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)
7
Cisco UCS M4308 Modular Chassis Installation Guide
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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)
8
Port not used at this
time
9
Port not used at this
time
10
Port not used at this
time
11
Port not used at this
time
12
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.
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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.
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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
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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
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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.
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Maintenance
Cisco UCS M142 Compute Cartridge Replacement
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