Overview of the Cisco UCS C-Series Rack-Mount Servers
Following are the Cisco UCS C-Series rack-mount servers:
Cisco UCS C200 M1 Rack-Mount Server
Cisco UCS C210 M1 Rack-Mount Server
Cisco UCS C250 M1 Rack-Mount Server
UCS C200 M1 Rack-Mount Server
The Cisco UCS C200 M1 server is a high-density, two-socket, 1 RU rack-mount server. This server is built for production-level network infrastructure, web services, and mainstream data centers, and branch and remote-office applications.
UCS C210 M1 Rack-Mount Server
The Cisco UCS C210 M1 server is a general-purpose, two-socket, 2 RU rack-mount server. It is designed to balance performance, density, and efficiency for storage-intensive workloads. This server is built for applications such as network file and appliances, storage, database, and content-delivery.
UCS C250 M1 Rack-Mount Server
The Cisco UCS C250 M1 server is a high-performance, memory-intensive, two-socket, 2 RU rack-mount server. It is designed to increase performance, and it has the capacity for demanding virtualization and large-data-set workloads. The C250 M1 server also can reduce the cost of smaller memory footprints.
Cisco Integrated Management Controller
The Cisco Integrated Management Controller (CIMC) is the management service for the C-Series servers. CIMC runs within the server.
You can use a web-based GUI or SSH-based CLI to access, configure, administer, and monitor the server. Almost all tasks can be performed in either interface, and the results of tasks performed in one interface are displayed in another. However, you cannot do the following:
Use CIMC GUI to invoke CIMC CLI
View a command that has been invoked through CIMC CLI in CIMC GUI
Generate CIMC CLI output from CIMC GUI
Tasks You Can Perform in CIMC
You can use CIMC to perform the following server management tasks:
Power on, power off, power cycle, reset and shut down the server
Toggle the locator LED
Configure the server boot order
View server properties and sensors
Manage remote presence
Create and manage local user accounts, and enable remote user authentication through Active Directory
Configure network-related settings, including NIC properties, IPv4, VLANs, and network security
Configure communication services, including HTTP, SSH, and IPMI Over LAN
Configure platform event filters
Update CIMC firmware
Monitor faults, alarms, and server status
No Operating System or Application Provisioning or Management
CIMC provisions servers, and as a result, exists below the operating system on a server. Therefore, you cannot use it to provision or manage operating systems or applications on servers. For example, you cannot do the following:
Deploy an OS, such as Windows or Linux
Deploy patches for software, such as an OS or an application
Install base software components, such as anti-virus software, monitoring agents, or backup clients
Install software applications, such as databases, application server software, or web servers
Perform operator actions, including restarting an Oracle database, restarting printer queues, or handling non-CIMC user accounts
Configure or manage external storage on the SAN or NAS storage
The CIMC CLI is a command-line management interface for Cisco UCS C-Series servers. You can launch the CIMC CLI and manage the server by the serial port or over the network by SSH or Telnet. By default, Telnet access is disabled.
A user of the CLI will be one of three roles: admin, user (can control, cannot configure), and read-only.
To recover from a lost admin password, see the Cisco UCS C-Series server installation and service guide for your platform.
The CLI is organized into a hierarchy of command modes, with the EXEC mode being the highest-level mode of the hierarchy. Higher-level modes branch into lower-level modes. You use the scope command to move from higher-level modes to modes in the next lower level , and the exit command to move up one level in the mode hierarchy. The top command returns to the EXEC mode.
Most command modes are associated with managed objects. The scope command does not create managed objects and can only access modes for which managed objects already exist.
Each mode contains a set of commands that can be entered in that mode. Most of the commands available in each mode pertain to the associated managed object. Depending on your assigned role, you may have access to only a subset of the commands available in a mode; commands to which you do not have access are hidden.
The CLI prompt for each mode shows the full path down the mode hierarchy to the current mode. This helps you to determine where you are in the command mode hierarchy and can be an invaluable tool when you need to navigate through the hierarchy.
The following table lists the main command modes, the commands used to access each mode, and the CLI prompt associated with each mode.
Table 1 Main Command Modes and Prompts
Commands Used to Access
top command from any mode
scope bios command from EXEC mode
scope certificate command from EXEC mode
scope chassis command from EXEC mode
scope cimc command from EXEC mode
scope firmware command from cimc mode
scope log command from cimc mode
/cimc/ log #
scope network command from cimc mode
scope ip-blocking command from network mode
scope tech-support command from cimc mode
scope fault command from EXEC mode
scope pef command from fault mode
scope trap-destination command from fault mode
scope http command from EXEC mode
scope ipmi command from EXEC mode
scope kvm command from EXEC mode
scope ldap command from EXEC mode
scope sel command from EXEC mode
scope sensor command from EXEC mode
scope sol command from EXEC mode
scope ssh command from EXEC mode
scope useruser-number command from EXEC mode
scope user-sessionsession-number command from EXEC mode
scope vmedia command from EXEC mode
Complete a Command
You can use the Tab key in any mode to complete a command. Partially typing a command name and pressing Tab causes the command to be displayed in full, or to the point where another keyword must be chosen or an argument value must be entered.
The CLI stores all previously used commands in the current session. You can step through the previously used commands by using the Up Arrow or Down Arrow keys. The Up Arrow key steps to the previous command in the history, and the Down Arrow key steps to the next command in the history. If you get to the end of the history, pressing the Down Arrow key does nothing.
All commands in the history can be entered again by simply stepping through the history to recall the desired command and pressing Enter. The command is entered as if you had manually typed it. You can also recall a command and change it before you enter it.
Committing, Discarding, and Viewing Pending Commands
When you enter a configuration command in the CLI, the command is not applied until you enter the commit command. Until committed, a configuration command is pending and can be discarded by entering a discard command. When any command is pending, an asterisk (*) appears before the command prompt. The asterisk disappears when you enter the commit command, as shown in this example:
Server# scope chassis
Server /chassis # set locator-led off
Server /chassis *# commit
Server /chassis #
You can accumulate pending changes in multiple command modes and apply them together with a single commit command. You can view the pending commands by entering the show configuration pending command in any command mode.
Committing multiple commands together is not an atomic operation. If any command fails, the successful commands are applied despite the failure. Failed commands are reported in an error message.
Command Output Formats
show commands accept an optional
detail keyword that causes the output information to be displayed as a list rather than a table. You can configure either of two presentation formats for displaying the output information when the
detail keyword is used. The format choices are as follows:
Default—For easy viewing, the command output is presented in a compact list.
This example shows command output in the default format:
Server /chassis # set cli output defaultServer /chassis # show hdd detail
Status : present
Status : present
Status : present
Status : present
Server /chassis #
YAML—For easy parsing by scripts, the command output is presented in the YAML™ (YAML Ain't Markup Language) data serialization language, delimited by defined character strings.
This example shows command output in the YAML format:
Server /chassis # set cli output yamlServer /chassis # show hdd detail
Server /chassis #
In most CLI command modes, you can enter set cli output default to configure the default format, or set cli output yaml to configure the YAML format.
Online Help for the CLI
At any time, you can type the ? character to display the options available at the current state of the command syntax. If you have not typed anything at the prompt, typing ? lists all available commands for the mode you are in. If you have partially typed a command, typing ? lists all available keywords and arguments available at your current position in the command syntax.