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#### Hardware RAID Support

In the SPARC and Netra SPARC T4 series servers and blades, hardware RAID support is provided by either onboard SAS2 RAID controllers or pluggable RAID expansion modules (REMs). Both types of controller enable you to create logical disk volumes consisting of two or more redundant disk drives. The following table identifies the type of hardware RAID controller used by each T4 platform.

Table 3 Hardware RAID Support for T4 Series Servers and Server Modules

Platform | Controller Description | Supported RAID Levels
--- | --- | ---
SPARC T4-1 | Two onboard SAS2 controllers | 0, 1, 1e
SPARC T4-2 | One onboard SAS2 controller | 0, 1, 1e
SPARC T4-4 | Two pluggable SAS2 REMs | 0, 1
SPARC T4-1B | One pluggable SAS2 REM | 0, 1
Netra SPARC T4-1 | Two onboard SAS2 controllers (one not used) | 0, 1
Netra SPARC T4-2 | Two onboard SAS2 controllers | 0, 1
Netra SPARC T4-1B | One pluggable SAS2 REM | 0, 1

Note - Up to two logical volume can be configured on each RAID controller.

There are three sets of RAID management utilities you can use with the onboard SAS2 controllers provided on SPARC T4-1, SPARC T4-2, Netra SPARC T4-1, and Netra SPARC T4-2 servers.

- Fcode utility -- You can use Fcode commands to display targets and manage logical volumes on your server. These commands are accessed through OBP.

  The examples shown in this manual rely on Fcode commands.

- Oracle Hardware Management Pack -- You can use the `raidconfig` commands contained in this software's Oracle Server CLI Tools component to create and manage RAID volumes on your server. To use these commands, download and install the Oracle Hardware Management Pack version 2.2 or later. Refer to the Oracle Hardware Management Pack 2.2 Installation Guide for instructions.

  You can find documentation for the Oracle Hardware Management Pack software at this location:

  http://www.oracle.com/pls/topic/lookup?ctx=ohmp

- LSI SAS2 2008 RAID Management Utility (`sas2ircu`) -- You can use `sas2ircu` commands (version 6.250.02.00 or later) to manage RAID functionality for the onboard SAS2 controllers.

  The `sas2ircu` utility for Oracle's T4-1 and T4-2 servers, together with user documentation, are available on the LSI website:

  http://www.lsi.com/sep/Pages/oracle/index.aspx

  Note - You can download documentation for the REM controllers from: http://docs.oracle.com/cd/E19946-01/index.html

  | Caution - Firmware updates for the onboard SAS controllers must be acquired from Oracle's support site http://support.oracle.com. Firmware applied to the onboard SAS controllers from any other location or any vendor other than Oracle is not supported.

##### Related Information

- Create a Hardware RAID Volume

- Prepare to Use the `FCode` Utility

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