Adaptec 1210SA User Guide - Page 70

BIOS Utilities 4 Create RAID via allows you to select between the different creation methods for RAID 0 and RAID 1. The following table gives examples of when each is appropriate. RAID level Create via When appropriate RAID 0 RAID 0 RAID 1 RAID 1 RAID 1 No Init Migrate1 Build1 Clear Quick Init 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. 1 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. Notes: s Before adding a new drive to an array, back up any data contained on the new drive. Otherwise, all data will be lost. s If you stop the Build or Clear process on a RAID 1 from ACU you can only restart it from Adaptec Storage Manager Browser Edition. (See Chapter 5 for details.) s 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. s The ACU 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. ! Caution: 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. 5 When you are finished, press Done. A-5