Controller – HP 3000 Enterprise Virtual Array User Manual
Page 141
cache battery in-
dicator
1.
An orange light emitting diode (indicator) that illuminates on the controller
operator control panel (OCP) to define the status of the HSV Controller
cache batteries.
2.
An amber status indicator that illuminates on a cache battery. When
illuminated, it indicates that one or more cache battery cells have failed
and the battery must be replaced with a new battery.
carrier
A drive-enclosure-compatible assembly containing a disk drive or other storage
devices.
client
A software program that uses the services of another software program. The HP
Command View EVA client is a standard internet browser.
clone
See
.
communication
logical unit num-
ber (LUN)
See
.
condition report
A three-element code generated by the EMU in the form where e.t. is the
element type (a hexadecimal number), en. is the element number (a decimal
number), and ec is the condition code (a decimal number).
console LUN
A SCSI-3 virtual object that makes a controller pair accessible by the host before
any virtual disks are created. Also called a communication LUN.
console LUN ID
The ID that can be assigned when a host operating system requires a unique ID.
The console LUN ID is assigned by the user, usually when the storage system
is initialized.
See also
controller
A hardware/firmware device that manages communications between host
systems and other devices. Controllers typically differ by the type of interface to
the host and provide functions beyond those the devices support.
controller enclo-
sure
A unit that holds one or more controllers, power supplies, blowers, cache
batteries, transceivers, and connectors.
controller event
A significant occurrence involving any storage system hardware or software
component reported by the controller to HP Command View EVA.
controller fault
indicator
An amber fault indicator that illuminates on the controller OCP to indicate when
there is an HSV Controller fault.
controller pair
Two interconnected controller modules which together control the disk enclosures
in the storage system.
corrective action
code
See
.
CRITICAL Condi-
tion
A drive enclosure EMU condition that occurs when one or more 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 replace-
able unit
See
Enterprise Virtual Array 3000/5000 user guide
141