Creating a partition using EBSU, or other partitioning tools, can result in the duplication of the created partition in multiple LUNs. Typically, this happens when there are redundant paths to the same storage device. For example, when you have two paths (A and B) to a storage device then two blocks bound to the original LUN are created. If you create a partition in the original LUN, it will be mirrored in the duplicated blocks.
For more details regarding configuring LUNs, see the HP StorageWorks: Booting Windows Server 2003 for Itanium-based systems from a storage area network application notes:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00193929/c00193929.pdf.
To configure the boot LUN, see the “Configuring the HBAs“ section in conjunction with the “Cabling options for single-channel HBAs” section to create a zone/boot environment with only one LUN mapped to the boot HBA.
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