Hi Ranjit,

Promoting a secondary mirror will make it as Primary and if the original (on primary array) mirror is still available and accessible, it makes that image as secondary.

However, please ensure that you run this command to promote the secondary mirror to be a primary on the secondary array - that holds the secondary image - it should NOT be to the storage system that holds the primary.

Please use the Controller IP being of the secondary array.

Also, You can promote a secondary image if the secondary is synchronized
or consistent. If the original primary is available, the software does a full resynchronization unless it confirms that the two images were synchronized.

Please refer to the "EMC MirrorView¿/Synchronous Command Line Interface (CLI)" document available on powerlink for more details and references.

Hope this helps,
Regards,
Sandip

where does it show you that both Luns are Primary, GUI or Cli i would suspect it the GUI i have seen this myself in the past. You could try an update now on the array level or log out and back in the console.

to check with the cli run naviseccli - h IP mirror -sync -list -name "remote mirror name" this will pull back the primary and secondary Luns runa this against the Dr arrray