Hi Experts , I need some expert advise of one of the scenario, I have multiple isolated OpenStack cluster running with train & rocky edition. Each OpenStack cluster environment have it's own isolated infrastructure of SAN ( CISCO fabric ) & Storage ( HP, EMC & IBM). Now company planning to refresh their SAN infrastructure. By procuring new Brocade SAN switches. But there are some migration relevant challenges we have. As we understand under one cinder instance only one typer of FC zone manager is supported . Currently customer configured & managing CISCO . Is it possible to configure two different vendor FC Zone manager under one cinder instance. Migration of SAN zoning is supposedly going to be happen offline way from OpenStack point of view. We will be migrating all ports of each existing cisco fabric to Brocade with zone configuration using brocade CLI. Our main concern is that after migration How CINDER DB update new zone info & path via Brocade SAN. Regards Gauurav Sabharwal IBM India Pvt. Ltd. IBM towers Ground floor, Block -A , Plot number 26, Sector 62, Noida Gautam budhnagar UP-201307. Email:gauurav.sabharwal@in.ibm.com Mobile No.: +91-9910159277