HP 6400/8400 HP StorageWorks 6400/8400 Enterprise Virtual Array User Guide - Page 135
SES SCSI-3 Enclosure Services Command Set SES, Rev 8b, American National
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drive enclosure event dual fabric dual power supply configuration dual-loop dynamic capacity expansion A significant operational occurrence involving a hardware or software component in the drive enclosure. The drive enclosure EMU reports these events to the controller for processing. Two independent fabrics providing multipath connections between Fibre Channel end devices. See redundant power configuration. A configuration where each drive is connected to a pair of controllers through two loops. These two Fibre Channel loops constitute a loop pair. A storage system feature that provides the ability to increase the size of an existing virtual disk. Before using this feature, you must ensure that your operating system supports capacity expansion of a virtual disk (or LUN). E EIA EIP electromagnetic interference electrostatic discharge element EMI EMU enclosure enclosure address bus enclosure number (En) enclosure services Enclosure Services Interface Enclosure Services Processor environmental monitoring unit error code ESD Electronic Industries Alliance. A standards organization specializing in the electrical and functional characteristics of interface equipment. Event Information Packet. The event information packet is an HSV element hexadecimal character display that defines how an event was detected. Also called the EIP type. See EMI. See ESD. In a disk enclosure, a device such as a, power supply, disk, fan/blower, or I/O module. The object can be controllled, interrogated, or described by the enclosure services process. Electromagnetic Interference. The impairment of a signal by an electromagnetic disturbance. Environmental Monitoring Unit. An element which monitors the status of an enclosure, including the power, air temperature, and blower status. The EMU detects problems and displays and reports these conditions to a user and the controller. In some cases, the EMU implements corrective action. A unit used to hold various storage system devices such as disk drives, controllers, power supplies, I/O modules, or fans/blowers. An Enterprise storage system bus that interconnects and identifies controller enclosures and disk drive enclosures by their physical location. Enclosures within a reporting group can exchange environmental data. This bus uses enclosure ID expansion cables to assign enclosure numbers to each enclosure. Communications over this bus do not involve the Fibre Channel drive enclosure bus and are, therefore, classified as out-of-band communications. One of the vertical rack-mounting positions where the enclosure is located. The positions are numbered sequentially in decimal numbers starting from the bottom of the cabinet. Each disk enclosure has its own enclosure number. A controller pair shares an enclosure number. If the system has an expansion rack, the enclosures in the expansion rack are numbered from 15 to 24, starting at the bottom. Those services that establish the mechanical environmental, electrical environmental, and external indicators and controls for the proper operation and maintenance of devices with an enclosure as described in the SES SCSI-3 Enclosure Services Command Set (SES), Rev 8b, American National Standard for Information Services. See ESI. See ESP. See EMU. The portion of an EMU condition report that defines a problem. Electrostatic Discharge. The emission of a potentially harmful static electric voltage as a result of improper grounding. 135