MySQL | A relational database system developed by MySQL AB that is used in HP XC systems to store |
| and track system configuration information. |
N |
|
NAT | Network Address Translation. A mechanism that provides a mapping (or transformation) of |
| addresses from one network to another. This enables external access of a machine on one LAN |
| that has the same IP address as a machine on another LAN, by mapping the LAN address of |
| the two machines to different external IP addresses. |
Network Address | See NAT. |
Translation |
|
Network | See NIS. |
Information |
|
Services |
|
NIS | Network Information Services. A mechanism that enables centralization of common data that |
| is pertinent across multiple machines in a network. The data is collected in a domain, within |
| which it is accessible and relevant. The most common use of NIS is to maintain user account |
| information across a set of networked hosts. |
NIS client | Any system that queries NIS servers for NIS database information. Clients do not store and |
| maintain copies of the NIS maps locally for their domain. |
NIS master server | A system that stores the master copy of the NIS database files, or maps, for the domain in the |
| /var/yp/DOMAIN directory and propagates them at regular intervals to the slave servers. Only |
| the master maps can be modified. Each domain can have only one master server. |
NIS slave server | A system that obtains and stores copies of the master server's NIS maps. These maps are updated |
| periodically over the network. If the master server is unavailable, the slave servers continue to |
| make the NIS maps available to client systems. Each domain can have multiple slave servers |
| distributed throughout the network. |
O |
|
OA | The enclosure management hardware, software, and firmware that is used to support all of the |
| managed devices contained within the HP BladeSystem |
onboard | See OA. |
administrator |
|
P |
|
parallel | An application that uses a distributed programming model and can run on multiple processors. |
application | An HP XC MPI application is a parallel application. That is, all interprocessor communication |
| within an HP XC parallel application is performed through calls to the MPI message passing |
| library. |
PXE | Preboot Execution Environment. A standard client/server interface that enables networked |
| computers that are not yet installed with an operating system to be configured and booted |
| remotely. PXE booting is configured at the BIOS level. |
R |
|
resource | Nodes with this role manage the allocation of resources to user applications. |
management role |
|
role | A set of services that are assigned to a node. |
Root | A component of the administration network. The top switch in the administration network; it |
Administration | may be a logical network switch comprised of multiple hardware switches. The Root Console |
Switch | Switch is connected to the Root Administration Switch. |
root node | A node within an HP XC system that is connected directly to the Root Administration Switch. |
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