New LUN not visible by ESXi

Hi

I want add a new LUN ton my ESXi to make a new VMFS volume.

I've create my new LUN in my SAN MSA2040. He's map to my host.

I've already a LUN in my SAN who's mount in my ESXi.

But in ESXi, when i go to storage adapter and reanalyse all, LUN doesn't appear. I see only the first LUN already mount.

Do i have forge some thing?

Xavier