August 2009
Intermediate to advanced
464 pages
13h 59m
English
Content preview from SQL Server 2008 Administration in Action
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11.6. Mirroring in action
In this section we'll walk through an example of setting up, failing over, and monitoring database mirroring. Before we start the setup process, let's review a number of important design considerations and preparatory steps:
SQL version—The principal and mirror instances must be running the same version and edition of SQL Server. If the database fails over, the same feature set needs to be available to ensure application behavior continues as normal.
Collation—Ensure the principal and mirror instances are using the same collations.
Network latency—As covered earlier, this can have a significant impact on transaction throughput and response time for high-safety (synchronous) mode. There are a number of tools and techniques ...
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