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Cisco C4200 Maintaining Manual
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Cisco C4200 Maintaining Manual

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Maintaining the Server Chassis
This chapter contains information about system LEDs and supported component installation or replacement.
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Status LEDs and Buttons
This section contains information for interpreting LED states.
Front-Panel LEDs
Figure 1: Front Panel LEDs
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
Maintaining the Server Chassis
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Summary of Contents for Cisco C4200

  • Page 1 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 •...
  • Page 2 Maintaining the Server Chassis Front-Panel LEDs Table 1: Front Panel LEDs, Definition of States LED Name States Node health • Off—No node is detected in the node bay. The numbers 1 - 4 correspond to the numbered node • Green—The node is operating normally. bays.

  • Page 3: Rear Panel Leds

    Maintaining the Server Chassis Rear-Panel LEDs Fan status • Green—All fan modules are operating properly. • Amber, steady—One fan has a fault. • Amber, blinking—Two or more fan modules have a fault. SAS/SATA drive fault • Off—The hard drive is operating properly. NVMe solid state drive (SSD) drive tray Note •...
  • Page 4 • Off—There is no AC power to the node. (One each 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.
  • Page 5 Maintaining the Server Chassis Internal Diagnostic LEDs in the Chassis Node 1-Gb Ethernet dedicated management link status • Off—No link is present. (One each node) • Green—Link is active. • Green, blinking—Traffic is present on the active link. Node locator beacon •...

  • Page 6: Preparing For Component Installation

    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).
  • Page 7 • 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.
  • Page 8 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.
  • Page 9 Maintaining the Server Chassis Shutting Down a Node Using The Cisco UCS Manager Service Profile 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.
  • Page 10 Maintaining the Server Chassis Opening the Fan Compartment Cover Figure 4: Fan and Supercap Compartment Covers Fan compartment cover Supercap compartment cover Fan compartment cover latch and lock Supercap compartment cover securing screw 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.

  • Page 11: Removing And Replacing Components

    Tighten the single captive screw on the cover. Removing and Replacing Components This section describes how to install or replace components in the Cisco UCS C4200 Server Chassis. For information on replacing components inside an installed compute node, see the service note for your compute node: •...
  • Page 12 Maintaining the Server Chassis Serviceable Components in the Chassis Figure 5: Cisco UCS C4200 Chassis Serviceable Component Locations Front-loading drives Cooling fan modules (four) Node 1-controlled drive bays 1—6 Each fan module contains two fans for redundancy. All six bays support SAS/SATA drives; bays 1 and 2 also support NVME drives.
  • Page 13 Maintaining the Server Chassis Replacing Front-Loading SAS/SATA Drives Front-loading drives Supercap units (RAID backup) Node 2-controlled drive bays 1—6 Each supercap unit backs up one RAID controller in the corresponding node (numbered 1—4). All six bays support SAS/SATA drives; bays 1 and 2 also support NVME drives.
  • Page 14 Setting Up UEFI Mode Booting in the Cisco IMC GUI Step 1 Use a web browser and the IP address of the compute node to log into the Cisco IMC GUI management interface. Step 2 Navigate to Server > BIOS.
  • Page 15 Maintaining the Server Chassis Replacing a Front-Loading SAS/SATA Drive Step 4 In the Configure BIOS Parameters dialog, select the Advanced tab. Step 5 Go to the LOM and PCIe Slot Configuration section. Step 6 Set the PCIe Slot: HBA Option ROM to UEFI Only. Step 7 Click Save Changes.
  • Page 16 Maintaining the Server Chassis Replacing Front-Loading NVMe SSDs Figure 7: Replacing a Drive in a Drive Tray Ejector lever Drive tray screws (two on each side) Release button Drive removed from drive tray Replacing Front-Loading NVMe SSDs This section is for replacing 2.5-inch NVMe solid-state drives (SSDs) in front-panel drive bays. Caution NVMe drives are not hot-swappable.
  • Page 17 Maintaining the Server Chassis Front-Loading NVMe SSD Population Guidelines Note NVMe drives are supported only with Cisco IMC/BIOS 4.0(2) and later; they are supported with Cisco UCS Manager 4.0(2) and later. Front-Loading NVMe SSD Population Guidelines Each compute node in the chassis controls six drive bays. Drive bays 1 and 2 in each set of six bays support NVMe SSDs.
  • Page 18 Save your changes and exit the utility. Enabling Hot-Plug Support Using the Cisco IMC GUI Step 1 Use a browser to log in to the Cisco IMC GUI for the server. Step 2 Navigate to Compute > BIOS > Advanced > PCI Configuration.
  • Page 19 Maintaining the Server Chassis Replacing a Front-Loading NVMe SSD Step 1 Remove an existing front-loading NVMe SSD: a) Shut down the NVMe SSD to initiate an OS-informed removal. Use your operating system interface to shut down the drive, and then observe the drive-tray LED: •...

  • Page 20: Replacing Fan Modules

    Maintaining the Server Chassis Replacing Fan Modules Figure 9: Replacing a Drive in a Drive Tray Ejector lever Drive tray screws (two on each side) Release button Drive removed from drive tray Replacing Fan Modules There are four fault LEDs on the fan tray, each numbered to a corresponding fan module. These LEDs light green when the fan is correctly seated and is operating OK.
  • Page 21 Maintaining the Server Chassis Replacing Fan Modules Caution You do not have to shut down or remove power from the server to replace fan modules because they are hot- swappable. However, to maintain proper cooling, do not operate the server for more than one minute with any fan module removed.
  • Page 22 Maintaining the Server Chassis Replacing the Supercap (RAID Backup) Figure 10: Top View of Fan Modules Fan module release latches Fan module fault LEDs Step 7 Return the chassis to the rack and replace any cables that you removed. Replacing the Supercap (RAID Backup) This chassis supports installation of up to four supercap units, one for each installed compute node.

  • Page 23: Replacing Power Supplies

    Maintaining the Server Chassis Replacing Power Supplies b) Lift on the end of the cover next to the captive screw and then completely remove the cover from the chassis. Step 3 Remove an existing supercap: a) Disconnect the supercap cable from the existing supercap. b) Pull straight up on the supercap unit and set it aside.
  • Page 24 Maintaining the Server Chassis Replacing AC Power Supplies • See also Rear-Panel LEDs, on page 3 for information about the power supply LEDs. This section includes procedures for replacing AC power supply units. Replacing AC Power Supplies Note If you have ordered a server with power supply redundancy (two power supplies), you do not have to power off the server to replace a power supply because they are redundant as 1+1.
  • Page 25 To replace a compute node, including exporting and importing its configuration, see the service note for your compute node: • Cisco UCS C125 Compute Node Service Note Replacing DIMMs Inside a Compute Node For information about replacing memory DIMMs inside a compute node, including supported memory population, see the service note for your compute node: •...
  • Page 26 For information about replacing a Micro-SD card inside a compute node, see the service note for your compute node: • Cisco UCS C125 Compute Node Service Note Replacing an OCP Adapter Card Inside a Compute Node For information about replacing an OCP adapter card inside a compute node, see the service note for your compute node: •...