3PAR AIX Implementation Guide (320-200187, June 2011)

4.4
Exporting VLUNs to the AIX Server
3PAR AIX 5.3, 6.1, and 7.1 Implementation Guide
3PAR Confidential
4.2 Exporting VLUNs to the AIX Server
This section describes how to discover exported devices to the AIX server.
4.2.1 Restrictions on Volume Size and Number
Follow the instructions for creating Virtual Volumes (VVs) and Virtual LUNs (VLUNs) in the
InForm OS CLI Administrator’s Manual while adhering to these cautions and guidelines:
■ This configuration supports sparse LUNs (meaning that LUNs may be skipped). LUNs may
also be exported in non-ascending order (e.g., 0, 5, 7, 3).
■ The InServ Storage Server supports the exportation of VLUNs with LUNs in the range from 0
to 65535. Testing was limited to 512 LUNs per storage server port (target) using LUN
numbers 0 to 511.
■ Exported VLUNs will not be registered on the host until cfgmgr is run on the host.
■ The maximum LUN size that is supported by the AIX host is 2TB when the installed InServ
OS is older than TPD version 2.3.1.
■ The maximum LUN size that can be exported to an AIX host is 16TB when the installed
InForm OS version is version 2.3.1. or later. A LUN size of 16TB on an AIX host is dependant
on the installed AIX technology level since some older versions of AIX will not support an
hdisk greater than 2TB.
4.2.2 Scanning for New Devices on the AIX Host
This section describes the steps to scan for new devices on the AIX Host.
■ LUN discovery on the AIX host is accomplished by issuing cfgmgr on the AIX CLI.
NOTE: AIX 7.1 only supports 512 LUNs per host HBA port, 0-511.