HighPoint RocketRAID 2340 - Manual (Page 8)

Introduction
1-3
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 RAID 1 and
RAID 10 arrays, initialization will results in data being duplicated identically to the
mirror pair. For RAID 5 and RAID 50 arrays, initialization will result in parity being
generated from all array members.
Note: An un-initialized RAID 1 or RAID 10 array can still provide redundancy in case
of a disk failure. A RAID 5 or RAID 50 array, however, is not fault-tolerant until
initialization is finished.
Online Capacity Expansion (OCE)
This feature allows disks to be added to existing RAID arrays, in order to increase the
array’s capacity, without fear of data loss. Any number of disks can be added to an
array, at any time. Data can be accessed and utilized even while being redistributed.
Online RAID Level Migration
This term describes the ability to change one type of array (RAID level), into a
different type of array (changing a RAID 1 array into a RAID 10 array for example).
Data is still accessible during the migration process, and a base level of security is
still active.