User`s guide

Chapter 6. Configuring Your Array
EK–SWRA2–IG. C01 6–37
6.6.2 Creating a Logical RAID Drive
You create a logical RAID drive with part or all of the space available on a drive
group. The logical drive allows your operating system to see and respond to that
portion of the drive group as one physical drive. The logical RAID drive also
defines how your system will store data on that disk space, based on the RAID
level selected. To the operating system, there is no difference between a logical
RAID drive and a single physical drive on a conventional disk controller.
You can create a maximum of 8 logical RAID drives per controller.
NOTE
For redundant RAID configurations, the controller
will use some of the space for data redundancy
purposes. See Table 6–3 for information on how
much space is available for each RAID level on
which you can store unique data.
Creating a logical RAID Drive requires the following procedures:
• Defining a logical RAID drive
• Choosing a write caching policy
• Saving the logical RAID drive configuration
6.6.2.1 Creating a Logical RAID Drive
To create a logical RAID drive, follow these steps:
1. Press the Enter key to select the Define Logical Drive option from the New
Configuration menu. The Logical Drive Definition menu screen appears, as
shown in Figure 6–18. The Logical Drive Definition menu screen displays an
option menu, a table of the drive groups available for selection as logical
RAID drives, and a table of the existing logical RAID drives.