I was able to generate a new passphrase by creating a new naviseccli security file on the CS, then modifying the set_passphrase script to change the navicli command to naviseccli command.
I have a pair of VNX 5500 unified that were removed from their clariion domains.  Cannot manage block via unisphere.  I can only login to the control station via SSH and Unisphere using a local account.  Global Security is not initialized.  Receive message when prompted to set a new credential:  The internal credential to the Control Station is invalid.  Log in the Control Station as root and run /nas/http/bin/set_passphrase IP_SP  When trying to run the command /nas/http/bin/set_passphrase IP_SP - it's using navicli classic and fails with caller not privileged.  I've found mixed articles on the web and in the knowledgebase which haven't yielded any results,  At this point, I'm stuck.  Please help.
VNX 5500 - Unified - error - internal credential is invalid