HP Integrity rx2800 Installation Guide, Windows Server 2008 R2 v7.0 - Page 87
Managing nPartitions Using IPMI over LAN, WBEM, Switch, Complexes, Switch Complexes
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The nPartition Provider caches the static data and reuses it for subsequent requests so that future command usage does not incur that initial overhead. If the PC is rebooted or the nPartition Provider is restarted, the cached data is lost. The first request to the MP after the restart requires the same initial overhead. IPMI specifies that data be sent as UDP datagrams over the LAN. UDP does not guarantee delivery of datagrams. If datagrams fail to arrive in a reasonable amount of time, the nPartition Provider retries a number of times. But if the network connection between the PC and MP is too unreliable or too slow, the provider times out and returns an error. The error is often seen as the message: [X] data is not available, where [X] is a cell, I/O chassis, cabinet, or other element in the complex. The speed and reliability of the network between the management station and the MP has a large effect on the reliability of command execution. When managing remotely using IPMI over a LAN, place the management station on the same subnet as and physically close to the target complex. If you cannot access the management station directly, you can use a Remote Desktop application or equivalent tool to connect to it from a remote terminal. Managing nPartitions Using IPMI over LAN Using IPMI over LAN, you can manage remote nPartitions through the MP. The management tool on the management station communicates directly with the local nPartition Provider. The nPartition Provider then communicates with the MP on the remote complex using IPMI over LAN. NOTE: You must use IPMI over LAN to manage nPartitions remotely if none of the nPartitions on the target server have been booted or configured yet. To use IPMI over LAN, you must enable IPMI LAN access at the MP, set the MP IPMI password, and install the nPar tools on your management station. You can then use any nPartition management tool to manage remote nPartitions. Running Partition Manager Using IPMI over LAN You can run Partition Manager using IPMI over LAN in one of two ways: • When running Partition Manager on an nPartition: From the Tools menu, select the Switch Complexes task. In the Switch Complexes dialog, enter the host name or IP address of the MP in the target complex, and enter the IPMI password for that MP. • When running Partition Manager on another system (not an nPartition): Partition Manager automatically displays the Switch Complexes dialog. Enter the host name or IP address of the MP in the target complex, and enter the IPMI password for that MP. Running nPartition Commands Using IPMI over LAN To run nPartitions commands remotely using IPMI over LAN, you must include the following command-line options with each command: • -g [password] The password is the IPMI password for the MP. • -h hostname | IPaddress The -h option specifies the host name or IP address in the target complex. When you use the -g... -h... set of options, the command sends WBEM requests to the local nPartition Provider, which uses IPMI over LAN to communicate with the MP in the target complex. WBEM WBEM is an industry initiative that establishes management infrastructure standards and provides a way to combine data from hardware and software management systems. WBEM specifies standards that enable access to data from various technologies and platforms and to present that Management Interface Options 87