HighPoint RocketRAID 2720C2 - Manual (Page 10)

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Note: Multiple arrays can be created using the same set of disk drives. One physical drive can be
used to create up to 4 arrays. The Capacity option allows you to set aside disk space that be used
to create another array, set as a spare disk, or partitioned to act as a single disk (by the operating
system).
6. For redundant RAID arrays (RAID 1, 5, 10), select the Cache Policy:
Write Back – Provides higher write performance for redundant RAID arrays. Data is at risk
when there is a power failure, system kernel panic and unresponsive, abnormal conditions.
Write Through – Writes directly to the disks (may reduce the risk of data loss during a
critical failure, but at the cost of lower performance).
Sector Size – Also known as “Variable Sector Size”. This option allows change the RAID
array’s logical sector size from 512b to 16K.
7. Use the arrow key to highlight the Start Creation item and press the Enter key.
The Window will show 2 options if create RAID: Background Initialize and Quick
Initialize.