Choosing the primary physical drive of the array

When you create a RAID level-1 logical drive on an integrated RAID controller, you must specify the primary physical drive. Doing so ensures that you retain the data on the primary physical drive. In a RAID level-1 logical drive, the data on the primary physical drive is copied to the secondary physical drive (the mirror). Any data on the secondary physical drive is destroyed.

After the logical drive is created, the physical drive Properties panel reports the mirror role (primary or secondary) of each drive:

Knowing the mirror role of each physical drive can be useful in the following situations:

More information

Glossary | Contents