Multi Site Clustering
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Hi Folks,
1. Can Multisite clustering work on single node per site? Like Node1 on Site A and Node2 on SiteB provided SAN replication.
2. Can current working IP address of virtual name go offline for some reason other than sql server goes offline.
say, Site A is hosting the Sql Service with 1.1.1.0 is the current working IP and client is now being connected to this IP. Is there possibility that 1.1.1.0 goes offline / not reachable to client by some other means, even though Sql Service is working online? If this happens, will failover happen to SiteB? ( say thats Site B with IP address 1.1.1.1).
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These might help you out.
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Thank you, I will have look surely.
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dbasql79 (7/20/2012)
Hi Folks,1. Can Multisite clustering work on single node per site? Like Node1 on Site A and Node2 on SiteB provided SAN replication.
Yes it can.
dbasql79 (7/20/2012)
2. Can current working IP address of virtual name go offline for some reason other than sql server goes offline.say, Site A is hosting the Sql Service with 1.1.1.0 is the current working IP and client is now being connected to this IP. Is there possibility that 1.1.1.0 goes offline / not reachable to client by some other means, even though Sql Service is working online? If this happens, will failover happen to SiteB? ( say thats Site B with IP address 1.1.1.1).
While Windows 2008 will support multiple IP subnets for a clustered application, SQL server 2005\2008 do not. Typically you would use a VLAN address that is in an address range reachable on both sites.
Check the following links for more info
http://technet.microsoft.com/en-us/library/dd197575(v=ws.10).aspx
http://msdn.microsoft.com/en-us/library/ff878716.aspx
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