Enabling ALUA

You can enable ALUA for your igroups, as long as the host supports the ALUA standard.

1. Check whether ALUA is enabled by entering the following command:
   igroup show -v igroup_name

   Example

   igroup show -v igroup1

   system1> igroup show -v igroup1
   igroup1:
   OS Type: solaris
   Member: 10:00:00:00:c9:2b:cc:39 (logged in on: vtic, 5a, 5b)
   Member: 10:00:00:00:c9:2b:cb:7e
   ALUA: Yes 
   Report SCSI Name in Inquiry Descriptor: No

   Note: The output of igroup show -v displays the FCP initiator logged in on physical ports as well as a port called "vtic". VTIC is an abbreviation for "virtual target interconnect". VTIC provides a connection between the two nodes in an HA pair, enabling LUNs to be served through target ports on both nodes. It is normal to see VTIC as one of the ports in the output of igroup show -v.

2. Enter the following command to enable ALUA if it has not already been enabled:
   igroup set igroup alua yes