When I do a 'show module' command I see that 3 of the modules are in a pwrdwn status and 2 are in an 'ok' status. I tried doing a 'hw-module module 7 reset'' command to try and bring module 7 back to an ok status. I say yes to the confirm and I get the response module 7 is operationally off, fabric required'. I then try doing the 'fabric required command but this does not restore the module to an ok status. What can I do.