Owner's manual

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 illum inates on a ca che 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 soft ware p rogram that uses the services of another soft ware program. The HP
Command View EVA client is a standard internet browser.
clone See Virtual Disk Copy.
communication
logical unit num-
ber (LUN)
See console LUN.
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 a ccessible 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 I D.
The console LUN I D is assigned by the user, usually when the storage system
is initialized.
See also console LUN.
controller A hardware/firmware device that manag es commu nications between host
systems and other devices. Controllers typically differ by the type of interface to
the host and provide functions beyond those the d evices suppor t.
controller enclo-
sure
A unit that holds one or more controllers, power supplies, blowers, cache
batteries, transceivers, and connectors.
controller event Asignificant occurrence involving any storage system hardware or software
component reported by the controller to HP Comma nd View EVA.
controller fault
indicator
An amber fault indicator that illuminates on the controller OC P to indicate when
there is an HSV Controller fault.
controller pair Two i nterconnected controller m odules which tog ether control the d isk enclosures
in the storage system.
corrective action
code
See CAC.
CRITICAL Condi-
tion
A drive enclosure EMU condition tha t occurs when one o r more drive enclosure
elements have failed or are operating outside of their specifications. The failure
of the element m a kes continued normal operation of at least som e elements in
the enclosure impossible. Some enclosure elements may be able to c ontinue
normal operations. Only an UNRECOVERABLE condition has precedence. This
condition has precedence over NO NCRITICAL errors and INFORMATION
condition.
CRU Customer Replaceable Unit. A storage system elem ent that a user can repla
ce
without using special tools or techniques, or special training.
customer replace-
able unit
See CRU.
4000/6000/8000 Enterprise Virtual Array user guide
149