Application Service Provider—Scenario #1 with SQL Clustering
As you may recall from Chapter 3, “Choosing High Availability,” the application service provider (ASP) business scenario (scenario #1) yielded a high availability selection of hardware redundancy, shared disk RAID arrays, MSCS, and SQL clustering. Having these four options together clearly met all of their requirements of uptime, tolerance, performance, and costs. The ASP's service level agreement with their customers also allows for brief amounts of downtime to deal with OS upgrades or fixes, hardware upgrades, and application upgrades. The ASP's budget was enough for a larger amount of hardware redundancy to be utilized.
The ASP planned and implemented three separate clusters in order ...
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