I set up CCR cluster with one storage group and in tests, when I shut down owner node failover happens and bringing online takes 10 sec. Now, i set 14 storage groups more on CCR cluster and after failover bringing online of all storage groups takes about 4-5 minutes. Why is that?
On Fri, 29 Feb 2008 03:32:19 -0800, efeb wrote: >I set up CCR cluster with one storage group and in tests, when I shut down >owner node failover happens and bringing online takes 10 sec. >Now, i set 14 storage groups more on CCR cluster and after failover bringing >online of all storage groups takes about 4-5 minutes. > >Why is that? Are you running SP1?
How are you failing the cluster over? Oliver "efeb" wrote in message news:DFBF064F-5E24-436E-8780-AE1D99C3B1AC@microsoft.com... >I set up CCR cluster with one storage group and in tests, when I shut down > owner node failover happens and bringing online takes 10 sec. > Now, i set 14 storage groups more on CCR cluster and after failover > bringing > online of all storage groups takes about 4-5 minutes. > > Why is that?
"Andy David {MVP}" wrote: > On Fri, 29 Feb 2008 03:32:19 -0800, efeb > wrote: > > >I set up CCR cluster with one storage group and in tests, when I shut down > >owner node failover happens and bringing online takes 10 sec. > >Now, i set 14 storage groups more on CCR cluster and after failover bringing > >online of all storage groups takes about 4-5 minutes. > > > >Why is that? > > > Are you running SP1? Yes, Exchange SP1 on Windows 2008 Enteprise
"Oliver Moazzezi [MVP]" wrote: > How are you failing the cluster over? Just for test...I shutdown active node to simulate crash that node and then failover ocures, right? that is the purpose of CCR cluster. Cluster name and IP brings online right away and bringin of storage groups takes about 5 min. I don't want to simulate with moving cluster group from one node to another, I don't need CCR cluster for that.
"efeb" wrote in message news:DFBF064F-5E24-436E-8780-AE1D99C3B1AC@microsoft.com... >I set up CCR cluster with one storage group and in tests, when I shut down > owner node failover happens and bringing online takes 10 sec. > Now, i set 14 storage groups more on CCR cluster and after failover > bringing > online of all storage groups takes about 4-5 minutes. > > Why is that? Because there is more involved when you have multiple storage groups. Each additional storage group takes more resources to manage and thus takes more to start-up in the event of a failure. SP1 will reduce the overhead per storage group, considerably, but it is still significant. -- Russ Kaufmann MVP - Windows Server - Clustering ClusterHelp.com, a Microsoft Certified Gold Partner Web http://www.clusterhelp.com Blog http://msmvps.com/clusterhelp The next ClusterHelp classes are: Mar 10- 13 in Denver May 12-15 in New York
