| Oracle® Exalogic Elastic Cloud Machine Owner's Guide Release EL X2-2 and EL X3-2 Part Number E18478-13 |
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PDF · Mobi · ePub |
| Oracle® Exalogic Elastic Cloud Machine Owner's Guide Release EL X2-2 and EL X3-2 Part Number E18478-13 |
|
|
PDF · Mobi · ePub |
This chapter describes how to set up and access Oracle Integrated Lights Out Manager (ILOM) for Exalogic compute nodes. It contains the following topics:
Section 7.3, "Management Network Diagram for Exalogic Machine"
Section 7.4, "ILOM IP Addresses for Exalogic Machine Components"
Oracle Integrated Lights Out Manager (ILOM) provides advanced service processor (SP) hardware and software that you can use to manage and monitor your Exalogic machine components, such as compute nodes, gateway switches, storage appliance, and the InfiniBand switch. ILOM's dedicated hardware and software is preinstalled on these components.
ILOM enables you to actively manage and monitor compute nodes in the Exalogic machine independently of the operating system state, providing you with a reliable Lights Out Management (LOM) system.
With ILOM, you can proactively:
Learn about hardware errors and faults as they occur
Remotely control the power state of your compute node
View the graphical and non-graphical consoles for the host
View the current status of sensors and indicators on the system
Determine the hardware configuration of your system
Receive generated alerts about system events in advance via IPMI PETs, SNMP Traps, or E-mail Alerts.
The ILOM service processor (SP) runs its own embedded operating system and has a dedicated Ethernet port, which together provide out-of-band management capability. In addition, you can access ILOM from the compute node's operating system. Using ILOM, you can remotely manage your compute node as if you were using a locally attached keyboard, monitor, and mouse.
ILOM automatically initializes as soon as power is applied to your compute node. It provides a full-featured, browser-based web interface and has an equivalent command-line interface (CLI).
The ILOM management interface is also integrated with Oracle Enterprise Manager Ops Center. Oracle Enterprise Manager Ops Center can discover new and existing systems on your network, update firmware and BIOS configurations, provision the operating environment with off-the-shelf distributions, manage updates and configuration changes, and remotely control key aspects of the service processor such as boot control, power status, and indicator lights.
Exalogic compute nodes are configured at the time of manufacturing to use Sideband Management. This configuration eliminates separate cables for the Service Processor (SP) NET MGT port and the NET0 Port.
ILOM supports multiple interfaces for accessing its features and functions. You can choose to use a browser-based web interface or a command-line interface.
The web interface provides an easy-to-use browser interface that enables you to log in to the SP, then to perform system management and monitoring.
The command-line interface enables you to operate ILOM using keyboard commands and adheres to industry-standard DMTF-style CLI and scripting protocols. ILOM supports SSH v2.0 and v3.0 for secure access to the CLI. Using the CLI, you can reuse existing scripts with Sun systems, and automate tasks using familiar interfaces.
You require at least one static IP address for Service Processor (ILOM access). For the list of default ILOM IP addresses assigned to Exalogic machine hardware components at the time of manufacturing, see Chapter 4, "Default IP Addresses and Ports Used in Exalogic Machine."
If you reconfigure these IP addresses during the initial configuration of the Exalogic machine using Oracle Exalogic Configuration Utility and its associated tools, you must use those IP addresses to access ILOM.
Note the following:
As a general convention, root is used as the default user name.
The default value of the Service Processor (SP ILOM) password is welcome1.
Figure 7-1 illustrates the management/ILOM network in the Exalogic machine.
Figure 7-1 Management Network in Exalogic Machine
Figure 7-1 shows two compute nodes and two Sun Network QDR InfiniBand Gateway Switches as an example only. The number of compute nodes and gateway switches depends on your purchased Exalogic machine rack configuration. The Cisco Ethernet management switch is connected to the NET0 port of compute nodes, and it is connected to the InfiniBand gateway switches.
ILOM IP addresses are assigned to Exalogic machine components at the time of manufacturing. For a list of default ILOM IP addresses, see Chapter 4, "Default IP Addresses and Ports Used in Exalogic Machine."
However, you can reconfigure the IP addresses by using the Oracle Exalogic Configuration Utility. The Oracle Exalogic Configuration Utility and its associated scripts reconfigure ILOM IP addresses based on the input you provide to the Exalogic Configurator spreadsheet.
If the Exalogic Configuration Utility fails to reconfigure IP addresses or misconfigures IP addresses, you can configure IP addresses manually, as described in Section 7.7.1, "Configuring ILOM IP Addresses Manually".
Under normal circumstances, you can access ILOM via the network. You can use the Ethernet connection method to connect to the ILOM. You must know the ILOM's Ethernet address. For the default IP addresses assigned at the time of manufacturing, see Chapter 4, "Default IP Addresses and Ports Used in Exalogic Machine." You can use either the CLI or the web interface to access ILOM. Alternatively, you can launch a remote KVM session to access ILOM.
Note:
You can use this connection method only if ILOM IP addresses are configured and can be accessed over the network. The network must be connected to the NET0 port (with sideband) of each of the Exalogic compute nodes or hardware components.
Oracle recommends that you use this connection method to access ILOM for Exalogic compute nodes.
This section discusses the following topics:
Start your SSH client, such as PuTTY.
In the Host Name (or IP address) field, enter the ILOM IP address of the Exalogic compute node or hardware component you want to connect to.
Ensure that SSH is chosen as the Connection Type.
Type the user name and the password, when prompted. The default user name is root, and the default password is welcome1.
The CLI command prompt is displayed.
In the address bar of a web browser, type the ILOM IP address of an Exalogic compute node or hardware component, and press Enter.
The login screen is displayed.
Enter the user name and the password. The default user name is root, and the default password is welcome1.
Click Log In.
The web GUI is displayed.
To access the ILOM consoles for Exalogic machine components that are connected to ILOM, do the following:
Ensure that pop-up blockers are disabled in your browser before you launch the remote console.
Type the ILOM IP address, which you noted down in the procedure ILOM IP Addresses for Exalogic Machine Components, in the address bar of a web browser.
Log in to ILOM using the default user name and password (root and welcome1). After login, the ILOM home page is displayed.
Click the Remote Control tab, and click Launch Remote Console.
The remote console is displayed.
You can connect to ILOM via a serial connection if you are unable to access ILOM via the network due to any of the following problems:
Misconfiguration of the network
Misconfiguration of ILOM IP addresses
Misconfiguration of Cisco Ethernet switch ports
Sideband configuration issues
Note:
You can reconfigure network access after connecting to ILOM via a serial connection. For more information, see Reconfiguring Network Access.
Connecting to ILOM of a compute
To connect to ILOM of a compute node in the Exalogic machine using a serial connection, complete the following steps:
Attach a serial cable from a terminal or a PC running terminal emulation software to the SER MGT port of an Exalogic compute node. The cable should be of length 15 feet or less.
Verify that your terminal or laptop is operational.
Configure the terminal device or the terminal emulation software to use the following settings:
8N1: eight data bits, no parity, one stop bit
9600 baud (default, but can be set to any standard rate up to 115200)
Disable software flow control (XON/XOFF)
Disable hardware control
Verify that power is supplied to either PSU.
If there is power applied to either PSU, then ILOM will be functional regardless of the power state of compute nodes.
Press Enter on the terminal device. A connection between the terminal device and the ILOM is established.
The ILOM login prompt is displayed.
Log in to the CLI using the default user name and the password (root and welcome1).
The ILOM default command prompt is displayed.
Connecting to ILOM of Sun Network QDR InfiniBand Gateway Switch
To connect to ILOM of a Sun Network QDR InfiniBand Gateway Switch in the Exalogic machine using a serial connection, complete the following steps:
Attach a USB-to-Serial connector to the USB port of the gateway switch.
Verify that your terminal or laptop is operational.
Configure the terminal device or the terminal emulation software to use the following settings:
8N1: eight data bits, no parity, one stop bit
115200 baud
Disable software flow control (XON/XOFF)
Disable hardware control
Press the Return or Enter key on the serial device several times to synchronize the connection.
You may see text similar to the following:
where nm2name is the host name of the management controller. The name might be the word hostname.
Even if you do not see the text, go to Step 5.
Type root for the login name followed by the root password of welcome1. The # prompt is displayed.
Note:
If you do not see this output or prompt, there is a problem with the serial configuration, the USB-to-Serial connector, or the CLI.
This step is required only if your network access must be reconfigured. You can reconfigure network access after connecting to the ILOM using a serial connection or an Ethernet connection.
Note:
Oracle recommends that you use an Ethernet connection if reconfiguration of network access becomes necessary.
This section contains the following topics:
Connect to the ILOM using a serial connection, as described in Connecting to ILOM via a Serial Connection.
Run the following commands at the ILOM command prompt:
set pendingipdiscovery=static
set pendingipaddress=<ip_address>
set pendingipnetmask=<ip_netmask>
set pendingipgateway=<ip_gateway>
set pendingmanagementport=/SYS/MB/NET0
set commitpending=true
Connect to the ILOM using the Ethernet connection, as described in Connecting to ILOM via the Network.
Note:
An Ethernet cable is pre-wired in the Exalogic machine for this purpose.
Run the following commands at the ILOM command prompt:
set pendingipdiscovery=static
set pendingipaddress=<ip_address>
set pendingipnetmask=<ip_netmask>
set pendingipgateway=<ip_gateway>
set pendingmanagementport=/SYS/MB/NET0
set commitpending=true
Using ipmitool Commands When SP Network Information Is Lost
If the service processor (SP) network information gets lost, you can use an SSH shell to connect to the ETH0 interface of the operating system on the compute node and run appropriate ipmitool commands to reconfigure network settings, as in the following example:
/opt/ipmitool/bin/ipmitool sunoem cli 'set /SP/users/rootpassword=somepasswd' somepasswd
This example resets the ILOM root password.
Note:
For more information about ipmitool commands and options, see the ipmitool man page at the following URL:
If ILOM IP addresses get misconfigured due to Oracle Exalogic Configuration Utility failures, you can configure ILOM IP addresses manually. Under normal circumstances, you do not need to configure ILOM IP addresses manually.
To configure IP addresses manually, complete the following steps:
Obtain a free static IP address from the network to which the Cisco 4948 switch is connected.
Configure the IP address and sideband management by using a serial port connection as follows:
Establish a serial connection to the SP of a compute node by inserting a serial cable into the SER MGT port on the rear of the compute node.
In the terminal window, configure the following settings:
8N1: Eight data bit, no parity, one stop bit
9600 Baud
Disable hardware control
Disable software control
At the login prompt, enter root as the user name, and welcome1 as the password.
From your present working directory, use the cd command to move to the /SP/network directory, as shown in Figure 7-2.
Figure 7-2 Configuring ILOM IP Using Serial Port Connection
Run the following commands at the command prompt:
set pendingipdiscovery=static
set pendingipaddress=<ip_address>
set pendingipnetmask=<ip_netmask>
set pendingipgateway=<ip_gateway>
set pendingmanagementport=/SYS/MB/NET0
set commitpending=true
After configuring ILOM for your Exalogic machine, verify the various configurations and proceed to complete the initial configuration of the Sun ZFS Storage 7320 appliance, which is included in the Exalogic machine.
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