TYAN TIGER I7322DP Manual page 67

Create RAID via allows you to select between the different creation
4.
methods for RAID 0 and RAID 1. The following table gives examples of
when each is appropriate.
RAID level Create RAID via
RAID 0 No Init
RAID 0 Migrate*
RAID 1 Build*
RAID 1 Clear
RAID 1 Quick Init
* If you select Migrate for RAID 0, or Build for RAID 1, you will be asked to select the
source drive. The contents of the source drive will be preserved. However, the data
on the new drive will be lost.
Before adding a new drive to an array, back up any data contained
on the new drive. Otherwise, all data will be lost.
A RAID 1 created using the Quick Init option may return some
data miscompares if you later run a consistency check. This is
normal and is not a cause for concern.
The Adaptec RAID Configuration Utility allows you to use drives of
different sizes in a RAID 1. If you choose the smaller drive as the
second drive, you will be warned about the risk of data loss.
Do not interrupt the creation of a RAID 0 using the Migrate option.
If you do, there is no way to restart and no way to recover the data
that was on the source drive.
When you are finished, press Done.
When appropriate
Creating a RAID 0 on new drives.
Creating a RAID 0 from one new drive and one
drive with data you wish to preserve.
Any time you wish to create a RAID 1, but
especially if you have data on one drive that you
wish to preserve.
Creating a RAID 1 on new drives, or when you
want to ensure that the array contains no data after
creation.
Fastest way to create a RAID 1. Appropriate when
using new drives.
Note
Warning
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