HP 3000 Enterprise Virtual Array - Manual (Page 210)

Glossary
210 Enterprise Virtual Array 3000 User Guide
controller pair
Two interconnected controller modules which together control a physical disk array. A
controller pair and the disk array together constitute a storage system.
corrective action code
See CAC.
CRITICAL Condition
A disk drive enclosure EMU condition that occurs when one or more disk drive enclosure
elements have failed or are operating outside of their specifications. The failure of the element
makes continued normal operation of at least some elements in the enclosure impossible.
Some enclosure elements may be able to continue normal operations. Only an
UNRECOVERABLE condition has precedence. This condition has precedence over
NONCRITICAL errors and INFORMATION condition.
CRU
Customer Replaceable Unit. A storage system element that a user can replace without using
special tools or techniques, or special training.
customer replaceable unit
See CRU.
data entry mode
The state in which controller information can be displayed or controller configuration data can
be entered. On the Enterprise Storage System, the controller mode is active when the LCD on
the HSV Controller OCP is Flashing.
default disk group
The first disk group created at the time the system is initialized. The default disk group can
contain the entire set of physical disks in the array or just a few of the disks.
See also disk group.
Detailed Fault View
An HSV Controller OCP display that permits a user to view detailed information about a
controller fault.
device channel
A channel used to connect storage devices to a host I/O bus adapter or intelligent controller.
device ports
Controller pair device ports connected to the storage system’s physical disk drive array
through the FC-AL. Also called a device-side port.