HP NetServer AA 4000 HP Netserver AA Solution Administrator's Guide v - Page 260

POST. Power-On Self Test. A test that each system passes as part of its initial boot process. The content of POST is specific to the system's manufacturer and model. shutdown. A system process that refers to shutting down either one of (or a combination of) the IOPs' and CE's copies of the Windows operating system. provider. Endurance IOP-based software driver that provides access to a specific service. For example, a SCSI provider provides access to SCSI devices, and an Ethernet provider provides access to Ethernet devices. Providers receive and process requests from the CEs. See also redirector. synchronize. A process that results in both CEs being tightly coupled, performing identical compute processing. When a CE is powered up and another CE is active, the synchronization process is started for the CE that just completed power up. rail. A pair of NIC cards, one in each IOP, used by the CE operating system to create one redundant network connection.The redundancy used in creating rails is not adapter teaming, which is not supported on Endurance. redirected video. The CE graphical display that is displayed in a window on the IOPs. redirection. Identifies when a system uses a device that is not physically located in that system. For example, access to the Ethernet and SCSI devices is redirected from the CE to the IOP using Endurance software redirector. Endurance CE-based software driver that requests a specific service from a provider. redundancy. Provides duplicate hardware components so that if one component fails, the remaining component continues to provide service. Redundant components offer higher levels of system availability than can be provided by a single component. SCSI settings. A SCSI device location defined by the adapter number, bus number, SCSI ID, and LUN (logical unit number). transient. A temporary condition describing an Endurance server fault that can be detected, isolated, and repaired without physically replacing any Endurance hardware components. tuple. A conceptual term that describes half of the redundant devices in an Endurance server. There are two tuples in the Endurance server. Each tuple contains a CE, an IOP, and a network connection. uninterruptable power supply. See UPS. UPS. Uninterruptable Power Supply. A batterybased device that provides a limited supply of electrical power in the event of a power failure. Video Provider. Video Provider on the IOP. Receives the I/O of the CE and makes it available for display on the IOP. Video Redirector. Video Redirector on the CE. Loads the Endurance video software on the CE and supports video I/O on the CE, redirected for display on the IOP. Glossary-4 HP Netserver AA Solution Administrator's Guide