HighPoint RocketRAID 2644X4 - Manual (Page 9)

Introduction
Understanding RAID Concepts and Terminology
The following concepts and terminology is commonly used when describing the
functions of the RocketRAID Host Adapter cards.
Disk Status
New The disk contains no data and has not been initialized.
Initialized The disk has been initialized and can be used for array creation.
Configured The disk has been assigned to one or more arrays, or configured as a
spare disk.
Legacy The disk was used on other controllers before use with the
RocketRAID 2644X4.
Array initialization
A redundant array (RAID5, RAID1, RAID10) needs to be initialized to ensure full
performance and reliability. Non-redundant arrays (RAID0, JBOD) do not need to be
initialized.
When you create a redundant array using the host adapter’s BIOS Configuration
Utility, it will create the array in un-initialized state. The initialization process can be
completed after installing the driver and management software.
When creating an array using the HighPoint RAID Management Console software,
you can specify an initialization option (Skip initialization, foreground and
background).
Foreground initialization
Foreground initialization will zero-out all data on the array. The array is not accessible
by the operating system until initialization is complete.
Background initialization
Background initialization allows the array to be used immediately. For RAID1 and
RAID10 arrays, initialization will results in data being duplicated identically to the
mirror pair. For RAID5 arrays, initialization will result in parity being generated from
all array members.
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