User`s guide

The following guidelines also apply when creating an IM or IME volume:

z All physical disks in the volumes must be either SATA (with extended command set support) or

SAS (with SMART support). SAS and SATA disks cannot be combined in the same volume.

z Disks must have 512-byte blocks and must not have removable media.

z An IM volume must have two drives, plus an optional global hot spare. An IME volume. An IME

volume can have three to eight drives, or three to seven drives if you also create a global hot

spare.

Note

If a disk in an IM or IME volume fails, it is rebuilt on the global hot spare if one is available.

So adding a global hot spare greatly increases the level of data protection. (One global hot spare

is allowed for the one or two volumes configured on a controller.)

5.2.3.2.1 Creating a Second IM and IME Volume

Follow these steps to create an IM volume with the SAS BIOS CU:

① On the Adapter screen, use the arrow keys to select an LSI Logic SAS adapter.

② Press Enter to go to the Adapter Properties screen, shown in below Figure.

③ On the Adapter Properties screen, use the arrow keys to select RAID Properties on the screen and

press Enter.

④ When you are prompted to select a volume type, select Create IM Volume. The Create New Array

screen shows a list of disks that can be added to a volume.

⑤ Move the cursor to the “RAID Disk” column and select a disk. To add the disk to the volume, change

the “No” to “Yes” by pressing the + key, . key, or space bar. When the first disk is added, the SAS

BIOS CU prompts you to either keep existing data or overwrite existing data.

⑥ Press M to keep the existing data on the first disk or press D to overwrite it. If you keep the existing

data, this is called a migration. The first disk will be mirrored onto the second disk, so the data you

want to keep must be on the first disk added to the volume. Any data on the second disk is

overwritten. As disks are added the Array Size field changes to reflect the size of the new volume.