Dell PowerEdge RAID Controller H700 User Manual
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Glossary
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F
Failed Physical Disk
A physical disk that has ceased to function, that consistently functions
improperly, or that is inaccessible.
Fault Tolerance
Fault tolerance is the capability of the disk subsystem to undergo a single disk
failure per disk group without compromising data integrity and processing
capability. The PERC H700 or PERC H800 cards provide this support through
redundant virtual disks in RAID levels 1, 5, 6, 10, 50, and 60.
Firmware
Software stored in read-only memory (ROM) or Programmable ROM (PROM).
Foreign Configuration
A RAID configuration that already exists on a replacement physical disk that
you install in a system. You can import the existing configuration to the RAID
controller or clear it so you can create a new one.
G
GB
Gigabyte(s). A gigabyte equals 1,024 megabytes or 1,073,741,824 bytes
(2^30 bytes).
H
Host System
Any system on which the RAID controller is installed. Servers and workstations
can be considered host systems.
Hot Spare
An idle, powered on, stand-by physical disk ready for immediate use in case of
disk failure. It does not contain any user data. A hot spare can be dedicated to a
single redundant virtual disk or it can be part of the global hot-spare pool for all
virtual disks controlled by the controller.
PERC7.2_UG.book Page 163 Thursday, March 3, 2011 2:14 PM