HP 3000 Enterprise Virtual Array - Manual (Page 219)

Glossary
219 Enterprise Virtual Array 3000 User Guide
hub
A communications infrastructure device to which nodes on a multi-point bus or loop are
physically connected. It is used to improve the manageability of physical cables.
I/O module
Input/Output module. The enclosure element that is the FC-AL interface to the host or
controller. I/O modules are bus speed specific; either 1 Gb or 2 Gb.
IDX
A 2-digit decimal number portion of the HSV controller termination code display that defines
one of 32 locations in the Termination Code array that contains information about a specific
event.
See also param and TC.
in-band communication
The method of communication between the EMU and controller that utilizes the FC-AL bus.
See also out-of-band communication.
INFORMATION condition
A disk drive enclosure EMU condition report that may require action. This condition is for
information only and does not indicate the failure of an element. All condition reports have
precedence over an INFORMATION condition.
initialization
A process that prepares a storage system for use. Specifically, the system binds controllers
together as an operational pair and establishes preliminary data structures on the disk array.
Initialization also sets up the first disk group, called the default disk group.
input/output module
See I/O module.
intake temperature
See ambient temperature.
interface
A set of protocols used between components such as cables, connectors, and signal levels.
JBOD
Just a Bunch of Disks. A number of disks connected to one or more controllers.
just a bunch of disks
See JBOD.