SQL Server Mirroring-Production Ready Yet?

Mar 9, 2007

Hello,
Is SQL Server 2005 mirroring production ready yet. We have two servers and plan to set up mirroring between them. We have the Standard Editon installed on them.
Is Standard Edition sufficient or does it need Enterprise Edition?

Thanks in Advance,
Sarath R

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Article: Database Mirroring Not Ready For Production When SQL Server 2005 Ships

Sep 16, 2005

Can someone at Microsoft comment on this article, specifically, how it relates to SQL Replication?  Will SQL Replication fall into the category of what this article describes, or only the mirroring feature?

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we are having 2 prodction servers in our environment.
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is this possible??

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thanks

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Server A = primary SQL DBs (mirroring origination)
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Can the witness live in another instance of SQL on server B?

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I cannot understand how this was allowed to happen, but I can recreate the situation all day long. Someone, please tell me that I have missed an obvious solution to this;



With a fresh install of SQL 2005 Express (SP2) I have 4 databases installed and two service-based applications running. One of the service applications uses/requires three of the four databases and the second service application uses/requires the fourth database.



On boot, with the above described services set to depend on SQL Server service startup I get repeated failures on initial database access. Looking at the event log reveals why (in sequence):



SQL Server Startup...



Event: Server local connection provider is ready to accept connection on...

Event: Server named pipe provider is ready to accept connection on...

Event: Server is listening on [ 'any' <ipv4> 1911]



Application Service Startup...



Event: SQL Server is not ready to accept new client connections. Wait a few minutes before trying again. If you have access to the error log, look for the informational message that indicates that SQL Server is ready before trying to connect again



Moments Later:



Event: SQL Server is now ready for client connections. This is an informational message; no user action is required.





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Am I reading the situation right so far?



In response to this, with my developer way of thinking, I could probably script the startup of application services rather than have them start automatically at boot or some such insane idea. But its not really the way that I had planned to spend the next few hours of my life, and it seems to me that I should not have to do such a thing.



Our in house service application (one of the two described) is in fact robust enough (just enough) to survive and to try the connection periodically, accomplishing a successful startup even with no database available.



The second of the two services is external and is unfortunately unable to start with no database available (Business Objects XI CMS). The normal means of making this service robust against database outages is the service restart procedure setting. But since the service doesnt ever start successfully, this doesnt work (learn something new every day - the restart is literal. It does not provide an initial startup retry and the service must have been started and fail for the retry to kick in)



Now, im not trying to bash anyone over this situation and regardless of the inflexible nature of the external service application and the general sillyness of the SQL server startup sequence - i mean c'mon... we are started but not ready? How about dont report startup until after you are ready? - the end result is that I need to come up with a solution to this problem.



I cant imagine that this is the first time that this behaviour has been questioned and I have to believe that there will be a simple, reliable workaround. I will keep looking for myself, but if any of this sounds familiar and you have a suggestion, your response will be greatly appreciated.



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Thanks

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