Inaccessible system

The system you specified is not accessible. This could be for a variety of reasons such as, the system name was entered incorrectly or the system is not available over the network.

 Verifying systems: 12% ....................................
 Estimated time remaining: 0:10 1 of 8
 Checking system communication ..................................... Done
System verification did not complete successfully
The following errors were discovered on the systems:
cannot resolve hostname host1 
Enter the  system names separated by spaces: q,? (host1)

Suggested solution: Verify that you entered the system name correctly; use the ping(1M) command to verify the accessibility of the host.