Required information for mapping a LUN to an igroup
You must map a LUN to an igroup to make the LUN accessible to the host. Data ONTAP maintains a separate LUN map for each igroup to support a large number of hosts and to enforce access control.
More information
LUN name
Specify the path name of the LUN to be mapped.
igroup name
Specify the name of the igroup that contains the hosts that will access the LUN.
LUN identification number
A LUN must have a unique identification number (ID) so that the host can identify and access the LUN. You map the LUN ID to an igroup so that all the hosts in that igroup can access the LUN.
Considerations about LUN identification numbers
You can assign a number for the LUN ID, or you can accept the default LUN ID. However, your Host Utilities have additional considerations for LUN identification numbers.