Appendix A Glossary - HighPoint ATA-133 RAID User Manual

Appendix A
Array
Also known as Disk Array, Two or more hard drives combined together to
appear as a single device to the host computer.
Hot Swap
The ability to remove a failed member of a redundant disk array and replace it
with a good drive, then repairing the errored redundant disk array without
turning down the computer and interrupting user's work.
Mirroring
Known as RAID 1, which provides data protection by real-time and automatic
duplicating all data from a source drive to a mirror disk.
RAID
Redundant Array of Independent Disks, it is a method of combining several
hard drives(physical drives) into one logical unit(logical drive), thus providing
higher performance and data redundancy.
RAID Levels
RAID levels refer to different array architectures(or methods of organizing a
disk array). Different RAID levels represent different performance level,
security level and cost.
RAID 0+1
Mirroring of two striped disk arrays. It is the combination of RAID 0 and RAID 1.
Appendix A
Glossary
A-1