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HP and Compaq Desktop PCs - Setting Up RAID Configuration Using Intel Matrix Storage Technology (Windows XP)

This document applies to HP and Compaq Desktop computers using Intel Matrix Storage Technology and RAID controllers in Windows XP.

Intel RAID technology

Intel's RAID solution is called Intel Matrix Storage Technology. RAID (Redundant Array of Independent Disks) technology allows several hard disk drives to function as one storage area (the array) to provide either data redundancy (backup security) or faster performance (striped reading/writing data from or to the disk drives). This document contains information about common RAID configurations and procedures about how to set up your system to various RAID configurations.

Choosing a RAID configuration

RAID Ready describes a system that is currently not in a RAID configuration. Intel's RAID solution allows you to configure a RAID Ready system to a RAID 0, RAID 1, RAID 5 or RAID 10 volume by adding additional SATA hard disk drives and then running the migration feature documented in this document.
RAID 0 combines two or more hard disk drives so that all data is divided into manageable blocks called strips. This improves read/write performance by allowing data to be accessed from more than one hard disk drive simultaneously. However, data stored in a RAID 0 volume is not redundant so that if one hard disk drive fails, all data on the volume is lost.
RAID 1 duplicates information from one hard disk drive onto a second hard disk drive. The data files are written to both hard disk drives and read from one drive. This setup provides data protection and security by minimizing the reliability risks; if one drive fails completely, no data is lost. Once the failed drive is replaced, the data is copied to the new drive.
RAID 5 combines three or four hard disk drives so that all data is divided into manageable blocks called strips. RAID 5 also stores parity, a mathematical method for recreating lost data on a single drive. The data and parity are striped across the three or four hard disk drives.
RAID 10 uses four hard disk drives to create a combination of RAID levels 0 and 1. The data is striped across a two-disk array forming a RAID 0 component. Each of the drives in the RAID 0 array is mirrored to form a RAID 1 component. This provides the performance benefits of RAID 0 and the redundancy of RAID 1. The RAID 10 volume appears as a single hard disk drive with a capacity equal to two drives of the four drive configuration. The remaining two drives are used for mirroring.

Configuring PC from RAID Ready to Raid 0

  1. Shut down the PC. Click Start, Turn Off Computer, and then click Turn Off.
  2. Connect a second hard disk drive to an available SATA port. The second hard disk drive must be equal to or larger than the original hard disk drive in the system.
  3. Turn on the PC.
  4. Click Start, choose All Programs, Intel(R) Matrix Storage Manager, and then click Intel Matrix Storage Console.
  5. Click Improve storage performance with RAID 0.
  6. Click Create a RAID 0 volume.
  7. When the confirmation box appears, click Yes to start the migration process. A migration status bar appears. The migration process can take several minutes.
    note:
    The system functions fully during the RAID migration.
  8. Once the RAID migration is complete, restart the PC to use the entire RAID volume capacity. Click Yes to restart the PC.
  9. To format the available unallocated space on your hard disk drive, follow the steps in the Post RAID migration procedure.

Configuring PC from RAID Ready to RAID 1

  1. Shut down the PC. Click Start, Turn Off Computer, and then click Turn Off.
  2. Connect a second hard disk drive to an available SATA port. The second hard disk drive must be equal to or larger than the original hard disk drive in the system.
  3. Turn on the PC.
  4. Click Start, choose All Programs, Intel(R) Matrix Storage Manager, and then click Intel Matrix Storage Console.
  5. Click Protect data from a hard drive failure with RAID 1.
  6. Click Create a RAID 1 volume.
  7. When the warning confirmation box appears, click Yes to start the migration process. The migration begins and a progress indicator appears.
    note:
    The system is fully functional during the RAID migration.
  8. Once the RAID migration is complete, click OK.
  9. note:
    You do not need to restart the PC when migrating to RAID 1.

Configuring RAID Ready to RAID 5

note:
RAID 5 requires three hard disc drives.
  1. Shut down the PC. Click Start, Turn Off Computer, and then click Turn Off.
  2. Connect a third hard disk drive to an available SATA port. The third hard disk drive must be equal to or larger than the original hard disk drive in the system.
  3. Turn on the PC.
  4. Click Start, choose All Programs, Intel(R) Matrix Storage Manager, and then click Intel Matrix Storage Console.
  5. Click the Switch to Advanced Mode view button to switch to advanced mode.
  6. Click the Actions menu, and then clickCreate RAID Volume from Existing Hard Drive.
  7. When the Create RAID Volume Wizard opens, click Next.
  8. Under Volume Name enter a volume name, select RAID 5 by clicking the RAID Level drop-down arrow, and select 128KB by clicking the Strip Size drop-down arrow.
    note:
    The three settings in this window are required to configure your RAID 5 hard disk drive.
  9. In the Select Source Hard Drive dialog box on the Available side, select the drive with the volume that you want to migrate to RAID 5. Click the right arrow button to move it to the Selected side, and then click Next.
  10. In the Select Number Hard Drive(s) dialog box, select the remaining hard disk drives, click the right arrow button to move them to the Selected side, and then click Next.
    note:
    For RAID 5 you need at least two additional hard disk drives.
  11. In the Specify Volume Size dialog box, enter the percent of the total combined hard disk drive space to use for the RAID volume. By default, the volume size is set to 100%. Select volume size by entering a number in GB in the Volume Size (GB) box or by using the slider located near the bottom of the window, and then click Next.
  12. Click Finish to complete the wizard and start the migration process.
    note:
    The system is fully functional during the RAID migration process.
  13. Once the RAID migration is complete, you must restart your PC to be able to use the entire RAID volume capacity. Click Yesto restart the PC.
  14. To format the available unallocated space on your hard disk drive, follow the steps in the Post RAID migration procedure section.

Configuring RAID Ready to RAID 10

A RAID 10 volume configuration requires four hard disk drives. HP does not support a PC model that uses four hard disk drives.

Post RAID migration procedure

After migrating a system from RAID Ready to RAID 0, RAID 5 or RAID 10, the RAID volume contains the combined capacity of all the hard disk drives, but the migrated partition leaves unformatted space at the end of the RAID volume.
note:
This post migration procedure is not necessary when migrating from Raid Ready to RAID 1.
To use this space, use Windows XP Disk Management to create another partition by following the steps below:
  1. Click Start on the taskbar, right-click My Computer to open the Computer Management window, and then click Manage.
  2. Click Disk Management under Storage.
  3. Right-click the unallocated space and click New Partition.
  4. When the New Partition Wizard opens, click Next.
  5. Select Primary partition or Extended partition, and then click Next.
  6. Assign a drive letter, and then click Next.
  7. Format the partition to make it usable. Enter a Volume label, select a File system type, and then click Next.
    note:
    Make sure Default is selected for the Allocation unit size.
  8. At the finish screen, click Finish to start the formatting process.
    note:
    Formatting the partition may take several minutes. Do not turn off your computer until the new partition has been completely formatted.

Related support

The The Intel Storage Technology Web site (in English) provides additional RAID information.

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