cross-link 10Gbe to NAS. Esxi 5.1

hello.

I have NAS (FreeNAS) with two 10Gbe adapters (192.168.10.1/24) and (192.168.11.1/24)  and shared  STORE  folder by NFS

I connected  one esxi host to  192.168.10.1 by cross cable

And connected  another esxi host to  192.168.11.1 by cross cable . I do not use the switch.

Configured cluster.

I have added storage STORE to  first exsi . it is ok.

But when i try to add   STORE to  second esxi   it  renamed to  STORE(1)

I can not use STORE on both exsi conntect directly to NAS. 

What can i do?