Glossary
Glossary-16
GAM Client User’s Guide
Parity Check
A function used to verify the integrity of data on a system drive. It verifies
that mirror or parity information matches the stored data on the redundant
arrays. If the parity block information is inconsistent with the data blocks,
the controller corrects the inconsistencies. See also
Consistency Check
.
Partitioning
Where the full usable storage capacity of a disk or array of disks appears to
an operating environment in the form of several virtual disks whose entire
capacity approximates that of the underlying disk or array.
Physical Device
Any device connected to some kind of hardware. For example, SCSI disk,
fibre disk, network disk, RAM disk, etc.
Platform
m
An underlying computer system on which application programs can run. A
platform consists of an operating system, the computer system's
coordinating program, and a microprocessor, the microchip in the computer
that performs logic operations and manages data movement in the computer.
Plug and Play
The ability to install peripheral cards or other devices without requiring
manual configuration by the user.
PROM
Programmable Read-Only Memory, memory that users with appropriate
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