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Windows Server 2003 Clustering & Load Balancing PHẦN 7

Hãy cẩn thận về việc thay đổi tên nút của bạn. Trường hợp có thể tồn tại khi bạn cần phải thay đổi tên của một nút cluster, cho dù vì những thay đổi công ty hoặc một lý do khác. Nếu bạn thay đổi tên, bạn có thể bị mất điểm nút đám mây và thông báo lỗi như thể hiện trong hình minh họa sau đây. | 228 Windows Server 2003 Clustering Load Balancing Changing Node Names Be careful about changing your node names. Instances might exist where you need to change the name of a cluster node whether because of company changes or another reason. If you change the name you could experience loss of the cluster node and the error message shown in the following illustration. The cluster node name I changed wouldn t let me add it back into the cluster so be aware that this happens at times. The way to fix this is by changing the name back to what it was this is why you need to document everything and then reopen the cluster and the name will be there. The Network Load Balancing Hot Fix Package The NLB Hot Fix Package is a fairly new hot fix package that you ll need to apply to keep your server updated. You can find this on the Microsoft.com downloads section of the web site. The NLB Hot Fix is used to resolve the following problems The NLB Windows Management Instrumentation WMI provider is known to have a severe memory leak in a process called WinMgmt. This leak 50MB of memory in 17 hours can cripple your server for memory. Another problem the hot fix can correct is modifying a node s load weight setting in the configuration for NLB which will end all existing client connections to that node through the VIP virtual IP address . If you don t want this to happen and cut off all your client connections then apply this hot fix. Uninstalling Application Center 2000 Doesn t Remove a Member from the Cluster Another problem I often see is when a client uninstalls Application Center 2000 to remove a server from the cluster group. In other words the client wants to remove a node from the group and uninstalls Application Center 2000 to do it. This doesn t work well and isn t recommended. Often the client removes the server this way only to open the MMC again and see the server is still located within the group. I did this in the lab when I was first learning how to use Application .