Understanding RAID Levels and Concepts
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19
Support for Over 2 Terabytes
Windows 2000, Windows XP (32-bit), Linux 2.4, and FreeBSD 4.x, do not
currently recognize unit capacity in excess of 2 TB.
If the combined capacity of the drives to be connected to a unit exceeds 2
Terabytes (TB), you can enable auto-carving when you configure your units.
Auto-carving divides the available unit capacity into multiple chunks of 2 TB
or smaller that can be addressed by the operating systems as separate
volumes. The carve size is adjustable from 1024 MB to 2048 MB (default)
prior to unit creation.
If a unit over 2 TB was created prior to enabling the auto-carve option, its
capacity visible to the operating system will still be 2TB; no additional
capacity will be registered. To change this, the unit has to be recreated.
For more information, see “Using Auto-Carving for Multi LUN Support” on
page 31.