4-Gonal configurations with parameters r=q2+1 and k=q+1 by Thas J.A.

By Thas J.A.

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Putting such an infrastructure in place allows these employees to not only attend classes and conferences, but to also come back and present what they have learned. Staffing levels need to be designed around support for continuing education commitments. Ultimately, the business needs to ask itself a simple question: what is the cost to the business in the future if that DBA’s skills lapse? It is a double-edged sword. In a mission-critical environment with extremely high availability requirements, it is absolutely crucial that everyone involved with managing the systems stays up-to-date with their skill sets.

The points listed are only part of what needs to be taken into account in the design of the data center itself. qxd 6/21/07 8:52 PM Page 19 CHAPTER 1 ■ THE BUSINESS OF AVAILABILITY Securing the Data Center If there is any one thing that needs attention from the beginning of the design of any application, system, or location, it is security. Security has many levels: physical security of the facility and access to the servers themselves, right down to how applications and clients interact with the solution.

You may not think of it this way, but testing is one of your first weapons for achieving availability. Will things work as advertised or promised? If the application does not work, it could mean downtime due to retooling. Too often, the focus is on testing: what has changed instead of what is important to the business. Focus on ensuring that your application’s core deliverables are not affected, instead of trying to test underlying functionality that you may or may not be using. This customer-focused testing will pay off in the long run.

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