HP 3000 Enterprise Virtual Array - Manual (Page 212)

Glossary
212 Enterprise Virtual Array 3000 User Guide
disk replacement delay
The time that elapses between a drive failure and when the controller starts searching for spare
disk space. Drive replacement seldom starts immediately in case the “failure” was a glitch or
temporary condition.
drive blank
See disk drive blank.
drive enclosure
See disk drive enclosure.
dual-loop
A configuration where each drive is connected to a pair of controllers through two loops.
These two Fibre Channel loops constitute a loop pair.
dual power supply configuration
See redundant power configuration.
EIA
Electronic Industries Alliance. A standards organization specializing in the electrical and
functional characteristics of interface equipment.
EIP
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.
electromagnetic interference
See EMI.
electrostatic discharge
See ESD.
element
1. In a disk drive enclosure, a device such as an EMU, power supply, disk, blower, or I/O
module. The object can be controlled, interrogated, or described by the enclosure services
process.
2. In the Storage Management Appliance Software, a controllable object, such as the
Enterprise Storage System.
EMI
Electromagnetic Interference. The impairment of a signal by an electromagnetic disturbance.