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Sun™ Cluster Environment: Sun Cluster 2.2 by David Deeths, Ph.D. Joseph Bianco, Enrigue Vargas

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Datacenter Best Practices

Industry analysts indicate that system hardware accounts for only 20 percent of outages—while people and practices account for 80 percent.[1] For example, a simple change to a system parameter may result in an outage that could have been avoided with appropriate testing, or with a change control process in place.

[1] Gartner Group research note, “Tactical Guidelines,” 16 March 1999.

A lot can be learned from processes that have been developed over the past 20 years by mainframe and UNIX system managers. Processes that affect availability are wide- ranging—careful attention should be paid to analyzing their potential business impact at all levels. The service delivered by an application often requires the availability ...

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