Use the LSI Configuration Utility program to configure
and manage redundant array of independent disks (RAID) arrays.
Be sure to use this program as described in this document.
- Use the LSI Configuration Utility program to perform the following
tasks:
- Perform a low-level format on a hard disk drive
- Create an array of hard disk drives with or without a hot-spare
drive
- Set protocol parameters on hard disk drives
The integrated SAS/SATA controller with RAID capabilities supports
RAID arrays. You can use the LSI Configuration Utility program to
configure RAID 1 (IM), RAID 1E (IME), and RAID 0 (IS) for a single
pair of attached devices. If you install the optional ServeRAID-MR10i
SAS/SATA controller, it provides RAID levels 0, 1, 5, 6, 10, 50, and
60 support. If you install a different type of RAID adapter, follow
the instructions in the documentation that comes with the adapter
to view or change settings for attached devices.
In addition, you can download an LSI command-line configuration
program from IBM Support Portal.
When you are using the LSI Configuration Utility program to configure
and manage arrays, consider the following information:
- The integrated SAS/SATA controller with RAID capabilities supports
the following features:
- Integrated Mirroring (IM) with hot-spare support (also known as
RAID 1)
Use this option to create an integrated array of two disks
plus up to two optional hot spares. All data on the primary disk can
be migrated.
- Integrated Mirroring Enhanced (IME) with hot-spare support (also
known as RAID 1E)
Use this option to create an integrated mirror
enhanced array of three to eight disks, including up to two optional
hot spares. All data on the array disks will be deleted.
- Integrated Striping (IS) (also known as RAID 0)
Use this option
to create an integrated striping array of two to eight disks. All
data on the array disks will be deleted.
- Hard disk drive capacities affect how you create arrays. The drives
in an array can have different capacities, but the RAID controller
treats them as if they all have the capacity of the smallest hard
disk drive.
- If you use an integrated SAS/SATA controller with RAID capabilities
to configure a RAID 1 (mirrored) array after you have installed the
operating system, you will lose access to any data or applications
that were previously stored on the secondary drive of the mirrored
pair.
- If you install a different type of RAID controller, see the documentation
that comes with the controller for information about viewing and changing
settings for attached devices.