Dear all we configured a A/P cluster and we are unable to move resources to Other Node Event Type: Error Event Source: ClusSvc Event Category: Membership Mgr Event ID: 1177 Date: 8/2/2011 Time: 10:17:19 AM User: N/A Computer: TEST-002 Description: Cluster service is shutting down because the membership engine failed to arbitrate for the quorum device. This could be due to the loss of network connectivity with the current quorum owner. Check your physical network infrastructure to ensure that communication between this node and all other nodes in the server cluster is intact. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Please body help what is went wrongSNIVAS

Few errors found in Event viewer 1.Cluster resource 'Log' in Resource Group 'SQL' failed. 2.Cluster service is requesting a bus reset for device \Device\ClusDisk0. 3.Cluster service could not join an existing server cluster and could not form a new server cluster. Cluster service has terminated. 4.The Cluster Service service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 60000 milliseconds: Restart the service. 5.Cluster service was halted to prevent an inconsistency within the server cluster. The error code was 5892. 6.Cluster service is shutting down because the membership engine failed to arbitrate for the quorum device. This could be due to the loss of network connectivity with the current quorum owner. Check your physical network infrastructure to ensure that communication between this node and all other nodes in the server cluster is intact.SNIVAS

here is what you should do http://technet.microsoft.com/en-us/library/cc773498%28WS.10%29.aspxhttp://www.virmansec.com/blogs/skhairuddin

Thanks Khairuddin As I mentined in Header of the question..I am working with Windows 2003 R2. same link work for Windows 2003 R2 all so ?SNIVAS

Yes the same fir windows 2003 as wellhttp://www.virmansec.com/blogs/skhairuddin