...which is to say that standard should work for your business needs; the only limitation is on the number of nodes, not how those nodes are used.
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Question
Is SQL Server Enterprise mandatory for clustering?
Our web site has one server with MS SQL Server 2003 Standard under Windows Server 2000 Standard .
Now we are to install a cluster for SQL Server with two nodes.
Each node is a Dell 1950 dual Xeon Quad.
We want an active/active cluster such that they divide the job in balance.
MS reseller says it must be SQL Server Enterprise to do that, but I found that SQL Server 2008 Standard, under Windows Server Enterprise 2003 does the clustering as we want. The limitations are that SQL Standard supports only two nodes (that's what we have!) and maximum of 4 processors (we have only two!). We need also to replicate to a third server, by using log shipping, at our Secondary (backup site).
We need that at Primary site one of the servers to be capable of run alone in case of failure of the companion node. In case of failure of the entire Primary site, we can start manually the Secondary.
At Primary site, Windows is Enterprise 2003 in both nodes, at Secondary, Windows is Standard 2003.
To avoid SQL upgrade together with so many changes, we would like to downgrade the SQL 2008 license to 2005.
In few words:
Is SQL Server Enterprise mandatory to run the 2 node active/active cluster as we want? If not, is Standard enogh to clustering in active/passive mode?
Thanks in advance,
Jose
- SQL-archtecture.bmp
- 88 KB
Schematic view of Primary site (with SQL cluster) and Secondary site.
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Answers
Thanks for your attention.
Please note I'm buying SQL Std 2008 but as Applications guys aren't able to upgrade now, then I will stay in 2005. My target now is to have high availability and a bit more than a simple active/passive cluster, where the passive is always in standby mode.
Can you please confirm if my understanding is correct, say if this configuration (the topology at the schema SQL-Architecture.jpg + SQL 2005 Std + Windows 2003 Enterprise) can do an active/active clustering?
Jose
Ianeduncan,
To close the question, I put the schema with final SW configurations.
Jose
- SQL-arch2.bmp
- 88 KB
Schema with Windows and SQL configurations
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by: laneduncanPosted on 2008-03-31 at 18:35:05ID: 21250608
Standard and Enterprise will support clustering, though standard only supports two nodes in the cluster.
http://www.microsoft.com/s