Cisco UCS C220 M5 User manual
Maintaining the Server
•Status LEDs and Buttons, on page 1
•Preparing For Component Installation, on page 6
•Removing and Replacing Components, on page 11
•Service Headers and Jumpers, on page 79
Status LEDs and Buttons
This section contains information for interpreting front, rear, and internal LED states.
Front-Panel LEDs
Figure 1: Front Panel LEDs
Table 1: Front Panel LEDs, Definition of States
StatesLED Name
Maintaining the Server
1
• 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
1
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 LED2
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 SSD drive fault
NVMe solid state drive (SSD) drive tray
LEDs have different behavior than
SAS/SATA drive trays.
Note
1
NVMe
• Off—No drive activity.
• Green, blinking—There is drive activity.
NVMe SSD activity2
NVMe
• Off—There is no AC power to the server.
•Amber—The server is in standby power mode. Power
is supplied only to the Cisco IMC and some
motherboard functions.
• Green—The server is in main power mode. Power is
supplied to all server components.
Power button/LED3
• Off—The unit identification function is not in use.
• Blue, blinking—The unit identification function is
activated.
Unit identification4
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Maintaining the Server
Front-Panel LEDs
• Green—The server is running in normal operating
condition.
• Green, blinking—The server is performing system
initialization and memory check.
• Amber, steady—The server 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, 2 blinks—There is a major fault with the
system board.
• Amber, 3 blinks—There is a major fault with the
memory DIMMs.
• Amber, 4 blinks—There is a major fault with the
CPUs.
System health5
• 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 status6
• Green—All fan modules are operating properly.
•Amber, blinking—One or more fan modules breached
the non-recoverable threshold.
Fan status7
• Off—The Ethernet LOM port link is idle.
• Green—One or more Ethernet LOM ports are
link-active, but there is no activity.
• Green, blinking—One or more Ethernet LOM ports
are link-active, with activity.
Network link activity8
•Green—The server 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 status9
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Maintaining the Server
Front-Panel LEDs
Rear-Panel LEDs
Figure 2: Rear Panel LEDs
Table 2: Rear Panel LEDs, Definition of States
StatesLED Name
• Amber—Link speed is 100 Mbps.
• Amber—Link speed is 1 Gbps.
• Green—Link speed is 10 Gbps.
1-Gb/10-Gb Ethernet link speed (on both LAN1 and
LAN2)
1
• Off—No link is present.
• Green—Link is active.
• Green, blinking—Traffic is present on the active link.
1-Gb/10-Gb Ethernet link status (on both LAN1 and
LAN2)
2
• Off—Link speed is 10 Mbps.
• Amber—Link speed is 100 Mbps.
• Green—Link speed is 1 Gbps.
1-Gb Ethernet dedicated management link speed3
• Off—No link is present.
• Green—Link is active.
• Green, blinking—Traffic is present on the active link.
1-Gb Ethernet dedicated management link status4
• Off—The unit identification function is not in use.
• Blue, blinking—The unit identification function is
activated.
Rear unit identification5
Maintaining the Server
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Maintaining the Server
Rear-Panel LEDs
AC power supplies:
• Off—No AC input (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-current, over-voltage,
or over-temperature failure).
DC power supplies:
• Off—No DC input (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-current, over-voltage,
or over-temperature failure).
Power supply status (one LED each power supply unit)6
Internal Diagnostic LEDs
The server has internal fault LEDs for CPUs, DIMMs, and fan modules.
Maintaining the Server
5
Maintaining the Server
Internal Diagnostic LEDs
Figure 3: Internal Diagnostic LED Locations
DIMM fault LEDs (one behind each DIMM socket
on the motherboard)
These LEDs operate only when the server is in
standby power mode.
• Amber—DIMM has a fault.
• Off—DIMM is OK.
3Fan module fault LEDs (one behind each fan
connector on the motherboard)
• Amber—Fan has a fault or is not fully seated.
• Green—Fan is OK.
1
-CPU fault LEDs (one behind each CPU socket on
the motherboard).
These LEDs operate only when the server is in
standby power mode.
• Amber—CPU has a fault.
• Off—CPU is OK.
2
Preparing For Component Installation
This section includes information and tasks that help prepare the server for component installation.
Required Equipment For Service Procedures
The following tools and equipment are used to perform the procedures in this chapter:
Maintaining the Server
6
Maintaining the Server
Preparing For Component Installation
• T-30 Torx driver (supplied with replacement CPUs for heatsink removal)
• #1 flat-head screwdriver (supplied with replacement CPUs for heatsink removal)
• #1 Phillips-head screwdriver (for M.2 SSD and intrusion switch replacement)
• Electrostatic discharge (ESD) strap or other grounding equipment such as a grounded mat
Shutting Down and Removing Power From the Server
The server 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 power cords from the server in this mode.
After a server is shut down to standby power, electric current is still present in the server. To completely
remove power as directed in some service procedures, you must disconnect all power cords from all power
supplies in the server.
Caution
You can shut down the server by using the front-panel power button or the software management interfaces.
Shutting Down Using the Power Button
Step 1 Check the color of the Power button/LED:
• Amber—The server is already in standby mode and you can safely remove power.
• Green—The server is in main power mode and must be shut down before you can safely remove power.
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.
Caution
• Graceful shutdown—Press and release the Power button. The operating system performs a graceful shutdown and
the server 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.
Step 3 If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the
power supplies in the server.
Shutting Down Using The Cisco IMC GUI
You must log in with user or admin privileges to perform this task.
Maintaining the Server
7
Maintaining the Server
Shutting Down and Removing Power From the Server
Step 1 In the Navigation pane, click the Server tab.
Step 2 On the Server tab, click Summary.
Step 3 In the Actions area, click Power Off Server.
Step 4 Click OK.
The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber
Power button/LED.
Step 5 If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the
power supplies in the server.
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:
Example:
server/chassis# power shutdown
The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber
Power button/LED.
Step 3 If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the
power supplies in the server.
Shutting Down 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 > Rack Mounts > Servers.
Step 3 Choose the server 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.
The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber
Power button/LED.
Maintaining the Server
8
Maintaining the Server
Shutting Down Using The Cisco IMC CLI
Step 7 If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the
power supplies in the server.
Shutting Down 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 service profile of the server that you are shutting down.
Step 4 Choose the service profile of the server 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.
Step 8 If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the
power supplies in the server.
Removing the Server Top Cover
Step 1 Remove the top 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 to the open position as you lift
the latch.
c) Lift the top cover straight up from the server and set it aside.
Step 2 Replace the top cover:
a) With the latch in the fully open position, place the cover on top of the server about one-half inch (1.27 cm) behind
the lip of the front cover panel. The opening in the latch should fit over the peg that sticks up from the fan tray.
b) Press the cover latch down to the closed position. The cover is pushed forward to the closed position as you push
down the latch.
c) If desired, lock the latch by using a screwdriver to turn the lock 90-degrees clockwise.
Maintaining the Server
9
Maintaining the Server
Shutting Down Using The Cisco UCS Manager Service Profile
Figure 4: Removing the Top Cover
Locking cover latch2Top cover1
Serial number label location3
Serial Number Location
The serial number for the server is printed on a label on the top of the server, near the front. See Removing
the Server Top Cover, on page 9.
Hot Swap vs Hot Plug
Some components can be removed and replaced without shutting down and removing power from the server.
This type of replacement has two varieties: hot-swap and hot-plug.
• Hot-swap replacement—You do not have to shut down the component in the software or operating
system. This applies to the following components:
Maintaining the Server
10
Maintaining the Server
Serial Number Location
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