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Red Hat Enterprise Linux 6 Essentials eBook now available in PDF and ePub formats for only $9.99
RHEL 6 Essentials contains 40 chapters and over 250 pages.

3.3.  RAID and Other Disk Devices

Important — Systems with Intel BIOS RAID sets

Red Hat Enterprise Linux 6 uses mdraid instead of dmraid for installation onto Intel BIOS RAID sets. These sets are detected automatically, and devices with Intel ISW metadata are recognized as mdraid instead of dmraid. Note that the device node names of any such devices under mdraid are different from their device node names under dmraid. Therefore, special precautions are necessary when you migrate systems with Intel BIOS RAID sets.
Local modifications to /etc/fstab, /etc/crypttab or other configuration files which refer to devices by their device node names will not work in Red Hat Enterprise Linux 6. Before migrating these files, you must therefore edit them to replace device node paths with device UUIDs instead. You can find the UUIDs of devices with the blkid command.

3.3.1.  Hardware RAID

RAID, or Redundant Array of Independent Disks, allows a group, or array, of drives to act as a single device. Configure any RAID functions provided by the mainboard of your computer, or attached controller cards, before you begin the installation process. Each active RAID array appears as one drive within Red Hat Enterprise Linux.
On systems with more than one hard drive you may configure Red Hat Enterprise Linux to operate several of the drives as a Linux RAID array without requiring any additional hardware.

 
 
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