Restricted Mappings

Many are able to map up to 256 (0 to 255) per . However, the maximum number of mappings differs because of operating system variables, failover driver issues, and potential data problems. The hosts listed in the table have these restrictions.


Important:

If you try to map a to a LUN that exceeds the restriction on these operating systems, the host is unable to access the logical drive.

Operating System Highest LUN
Windows Server 2003 and Windows Server 2008 255
Solaris 255
HP-UX 11.23 and 11.31 127
AIX 1000+
Linux 255

Keep these guidelines in mind when you work with host types with LUN mapping restrictions:

The Default Group on the Mappings tab has a default host type. You can change this type by selecting Storage Subsystem >> Change >> Default Host Type . If you set the default host type to a host type that is restricted, the maximum number of LUNs that are allowed in the Default Group for any host are restricted to the limit imposed by the restricted host type. If a particular host with a non-restricted host type becomes part of a specific storage partition, you are able to change the mapping to a higher LUN.

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