My Title is a suggested solution rather than the actual question. Let me explain. I have a C# ASP.NET 2.0 website that I wrote to run deployments to my many environments. It uses PSExec to kick off deployment executables on different machines. It works great until you try to throw it at a cluster because PSExec isn't cluster aware. PSExec tries to kick off on the cluster, but the cluster isn't an actual machine, and thus, psexec fails miserably. It thinks it's running, but really it isn't. I came up with an alternative. Run PSExec against the active node of the cluster passing the cluster name to the exe that's running there. In order to do that, I'd have to be able to determine the name of the machine that was the active node. Does someone have an idea of how to do this programmaticall y, or have an alternative suggestion?
Thanks,
Eric <><
2  5140 
No advise for me on this subject?
No advise for me on this subject?
Hey, I've had to do similar things for one of my clients who are using some oddball clustering software called EMC Autostart. The solution we came up with was to do a host lookup using the WMI (because obviously the DNS server will always hold the same info) and the IP address. The cluster we have always has the same virtual IP but you can get to the physical machines by using their real IP addresses.
Virtual IP: 192.168.26.7
Real IP 1: 192.168.26.6
Real IP 2: 192.168.26.5
Real IP 3: 192.168.26.4
During the normal course of action you would always go to 192.168.26.7 and you would be connected with whichever the live box is. So when a box is live it has the IP 192.168.26.7, but when it's not live it doesn't. Long story short in most cluster environments you can only run against the live box and the cluster updates the others by a synchro mechanism. The biggest trick is "how do you know if this box is part of a cluster or not and if so, how do you know if this is the live box?". That depends on the cluster software you're running I guess - every piece of software installed on a machine has a signature. Find out what that signature is and find out how to tell if this is the live box and you should be able to program a solution. If this machine is part of a cluster and it's live or this box is not part of a cluster, invoke the process, if it's part of a cluster and not live, skip this machine and go onto the next.
I would hazard a guess that the easiest way to do this is using WMI (Windows Management Instrumentation ) or by querying the registry on that machine.
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