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Chapter 3 Storage Arrays 3-73
The first partition is composed of Volume Financial. This volume is accessed by Host
KC-B using LUN 5. Even though Host KC-B is part of the logical Host Group Kansas
City, Host KC-A cannot access this volume because the volume-to-LUN mapping
was created with Host KC-B rather than the Host Group Kansas City.
The second partition consists of Volumes Legal and Engineering. This volume-to-
LUN mapping was created using Host Group Kansas City. These volumes are
accessed by Hosts KC-A and KC-B in Host Group Kansas City using both LUNs 2
and 4.
The third partition consists of Volumes Marketing and HResources. This volume-to-
LUN mapping was created using Host Group Omaha. These volumes are accessed
by Hosts Omaha A and Omaha B in Host Group Omaha using both LUNs 7 and 2.
Note – A host accesses the volumes on the storage array through the physical host
ports residing on the installed host bus adapters. To ensure redundant paths to each
volume, each host must have at least two host ports.
FIGURE 3-30 SANshare Storage Partitioning Example
SANshare Storage Partitioning involves three key steps: