HP 6400/8400, Руководство пользователя

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CAC Corrective Action Code. An HP Command View EVA GUI display component
that defines the action required to correct a problem.
See also read cache , write cache , and mirrored cache .
cache High-speed memory that sets aside data as an intermediate data buffer between
a host and the storage media. The purpose of cache is to improve performance.
cache battery A rechargeable unit mounted within a controller enclosure that supplies back-up
power to the cache module in case of primary power shortage.
cache battery
indicator 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. 1.
2. An amber status indicator that illuminates on a cache battery. When illumin-
ated, 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 Virtual Disk Copy .
communication
logical unit
number (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 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 console LUN .
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
enclosure 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.
HP StorageWorks 6400/8400 Enterprise Virtual Array user guide 131