25IBM SPSS Data Collection Interviewer Server installation informationChecking that machines in a cluster can communicate with each otherEach machine in a cluster must be able to communicate with all the other machines in the samecluster. The easiest way to verify this is to use ping. This program sends a short stream of datafrom one machine to another and waits for the receiving machine to return the data.E On each machine in turn, open a DOS window and type ping machine_name where machine_nameis the name of one of the machines in the cluster.If the machines can communicate, you will see several lines starting ‘Reply from’ appear on yourscreen as the pinged machine returns the signal. If the machines cannot communicate you will seethe message ‘Request timed out’.E Repeat this step for each other machine in the cluster.Checking that DCOM is enabledCarry out the following steps to check that DCOM is enabled.E From the Windows Start menu, choose Run.E Type dcomcnfg in the text box and click OK.This opens the Component Services window.E In the left-hand frame, expand Component Services and then Computers.E Right-click My Computer and choose Properties.This opens the My Computer Properties dialog box.E On the Default Properties tab, check that Enable Distributed COM on this computer is selected.E Click OK.Checking that SQL Server is running correctlyThe machines running the Interview Service need to be able to connect to the Database server.You can test that these connections work by creating a test DSN on each of the Interviewingmachines in turn.
