When coordinating the VM NMP and any installed 3-party MIP, what operations does the PSA perform?
Implements logical devices bandwidth sharing
Process I/O request to logical devices
Associate physical path with logical devices
Manage physical path claiming and unclaiming
it is A, as B, C and D are performed by NMP. For reference please refer to page 23-24 of this document http://www.vmware.com/pdf/vsphere4/r40/vsp_40_san_cfg.pdf