Volume Logix allows you to restrict access to particular WWPNs on the fabric for Symmetrix Volumes.
This function can be switched on and off by changing the VMC_State port setting. The SAN Volume Controller requires that you do not share target ports between a host and a SAN Volume Controller. However, you can still use Volume Logix to protect the system from errors that can occur if the SAN is not correctly configured.
To mask a volume to the SAN Volume Controller, you must first identify the SAN Volume Controller ports that are connected to each system. This can be done using the EMC Symmetrix symmask command.
The SAN Volume Controller automatically logs into any EMC Symmetrix system it sees on the fabric. You can use the SAN Volume Controller svcinfo lsnode CLI command to find the correct port identifiers.
After you have identified the ports, you can map each volume on each port to each WWPN. The EMC Symmetrix stores the LUN masking in a database, so you must apply the changes you have made to refresh the contents of the database to view the changes.