chiliGREEN Home Server: Intel Rapid Storage Technology - Manual (Page 6)

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Term Description
Migration The process of converting a system's data storage configuration from a
non-RAID configuration (pass-thru) to a RAID configuration.
Hot Plug The unannounced removal and insertion of a Serial ATA hard drive while
the system is powered on.
NCQ Native Command Queuing: a command protocol in Serial ATA that allows
multiple commands to be outstanding within a hard drive at the same time.
The commands are dynamically reordered to increase hard drive
performance.
On Request Update
Policy When a recovery volume is using this policy, data on the master drive is
copied to the recovery drive when you request it. Only changes since the
last update process are copied.
OS Operating System
Port0 A serial ATA port (connector) on a motherboard identified as Port0.
Port1 A serial ATA port (connector) on a motherboard identified as Port1.
Port2 A serial ATA port (connector) on a motherboard identified as Port2.
Port3 A serial ATA port (connector) on a motherboard identified as Port3.
POST Power-On Self Test
RAID Redundant Array of Independent Drives: allows data to be distributed
across multiple hard drives to provide data redundancy or to enhance data
storage performance.
RAID 0 (striping) The data in the RAID volume is striped across the array's members. Striping
divides data into units and distributes those units across the members
without creating data redundancy, but improving read/write performance.
RAID 1 (mirroring) The data in the RAID volume is mirrored across the RAID array's
members. Mirroring is the term used to describe the key feature of RAID
1, which writes duplicate data to each member; therefore, creating data
redundancy and increasing fault tolerance.
RAID 5 (striping with
parity) The data in the RAID volume and parity are striped across the array's
members. Parity information is written with the data in a rotating sequence
across the members of the array. This RAID level is a preferred
configuration for efficiency, fault-tolerance, and performance.
RAID 10 (striping and
mirroring) The RAID level where information is striped across a two disk array for
system performance. Each of the drives in the array has a mirror for fault
tolerance. RAID 10 provides the performance benefits of RAID 0 and the
redundancy of RAID 1. However, it requires four hard drives.