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v If an array contains a logical drive assigned RAID level-5E
v If you want to use the logical-drive migration feature
In
these cases, one logical drive slot must be left free; therefore, you
must define no more than seven logical drives.
b. Some operating systems have size limitations for logical drives.
Before you save the configuration, verify that the size of the logical
drive is appropriate for your operating system. For more detailed
information, see your operating-system documentation.
c. A logical drive cannot exceed 2048 GB (2 terabytes); the minimum
size is nMB, where n equals the number of drives in the array.
d. Typically, the first logical drive defined on the first ServeRAID
controller found by system BIOS during startup will be your startup
(boot) drive.
e. The actual logical-drive size might be slightly different from what
you select. The RAID level and the number of physical drives
determine the size of the logical drive. For example, an array
consisting of three, 1 GB physical drives with a requested RAID
level-0 logical drive of 1000 MB will actually contain only 999 MB
because the data is striped across all three drives, with 333 MB on
each drive.
5. If you have free space available and want to create additional logical drives,
click
.
6. Repeat steps 3 through 5 for each logical drive that you want to define in this
array.
7. Repeat steps 2 through 6 for each additional array that you want to configure.
8. Click Next. The Configuration Summary window opens.
To return to the Create Arrays window, click Back. To leave the Configuration
wizard, click Cancel.
More information
v Selecting the RAID level by array capacity
v Selecting the array size
v Understanding physical drive capacity and unusable capacity
Creating
arrays and hot-spare drives: Complete the following steps to create arrays:
1. Start the custom configuration wizard and complete all previous steps.
2. Click the appropriate Array tab in the right pane:
3. Then, from the list of ready drives, select the drives you want to add to the
array:
4. Click
>> (Add selected drives) to add the drives to the array. You can
click
>> (Add all drives) to move all ready drives to an array.
Chapter 4. Managing ServeRAID devices 129