Msi X2-109 v1 User Manual download pdf (Page 41)

Configuring Arrays and Logical Drives 3-7

A list of the available RAID levels for the current logical drive

appears.

9. Select a RAID level for the logical drive and press Enter.

10. (Optional) Set the logical drive size by highlighting Size and pressing

Enter.

The minimum valid logical drive size is 64 Mbytes. An error message

will appear if you try to create a logical drive that is smaller than

64 Mbytes. By default, all the available space in the array is assigned

to the current logical drive. For RAID 10 arrays, only one logical drive

can be defined for the entire array.

11. (Optional) Change the disks’s default Write Cache and Read Ahead

policies (see Section 3.3, “Setting the Hard Disk Write Cache and

Read Ahead Policies”).

12. When you have finished defining the current logical drive, select

Accept and press Enter.

13. Configure additional logical drives on the same array, if desired. If

you have created more than one array, configure a logical drive on

the second array.

14. Save the configuration when prompted, and press any key to return

to the Management Menu.

15. Initialize the new logical drive(s). (See Section 3.2.5, “Initializing

Logical Drives,” for detailed instructions.)

3.2.4 Creating a Global Hotspare Drive

The MegaRAID BIOS CU enables you to create global hotspare drives

(dedicated hotspare drives are not supported). A hotspare drive can

automatically replace a failed drive in a redundant RAID 1, RAID 5, or

RAID 10 array, to protect against data loss.

Important:

When you select disk drive for a global hotspare, be sure

it is the same type of drive (either SAS or SATA) as the

drives in the arrays that it will protect. LSI recommends that

you do not combine SAS and SATA drives in the same

array.

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Msi X2-109 v1 User Manual Page 41