http://www.sqlservercentral.com/blogs/brian_kelley/2006/07/07/new-kb-article-on-remote-mirroring-support-requirements/ Printed 2015/05/30 11:38AM
New KB Article on Remote Mirroring Support Requirements
2006/07/07Microsoft has published a new Knowledge Base article on the
requirements to receive support for what is known as remote mirroring.
Requirements for SQL Server 2005 and SQL Server 2000 to support remote mirroring of user databases
That's basically where you duplicate a database across sites using a
3rd party vendor solution. Looking over the KB article, it's pretty
much the same list we see for geographically dispersed Exchange
clusters. However, if you're considering mirroring a database across
sites and not using SQL Server 2005's mirroring technology, you'll want
to take a look at the article. Microsoft lists the requirements because
they are gotchas that can lead to data corruption. For instance, remote
mirroring solutions must provide (as per the article):
- Your solution must maintain Dependent Write Consistency.
- Your solution must avoid torn pages.
- Your solution must produce an I/O consistent copy of your data at the secondary remote location.
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