When a server goes down, it will most likely cause your company to lose money. If your network contains an external Web site or database that controls your sales, ordering, inventory, or production, server downtime can be detrimental to these business needs. If  it is an internal server, it may not allow your users to perform their jobs. In either case, your company is losing money either through revenue or through productivity.

As a server administrator, you need to minimize downtime by identifying potential failures and taking steps to avoid those failures and to reduce their effects.
High availability is a system design protocol and associated implementation that ensures a certain degree of operational continuity during a given measurement period. Generally, the term downtime is used to refer to periods when a system is unavailable. Availability is usually
expressed as a percentage of uptime in a given year as shown in Table 4-2.

Introducing Business Continuity 1

Table 1 : Availability Guidelines

When designing servers and the services they provide, they are often assigned service level agreements (SLA), which state the level of availability those servers or services must maintain.
Of , to have a server design that can support five or six nines is going to be much more
expensive than supporting an availability of 99%.

 

Introducing Fault-Tolerant Components

-------------------------------- To make a server more fault tolerant, you should first look at what components are the most likely to ...
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Understanding Clustering

------------------------------------------- A computer cluster is a group of linked computers that work together as one computer. Based on the technology ...
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Understanding Power

------------------------------------------ Without electricity, the server will not run. Even if you have redundant power supplies, they cannot protect against a ...
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This lesson is a part of Monitoring and Troubleshooting Servers chapter from 98-365 Windows Server Administration Fundamentals Prep course. More lessons in this chapter are

Managing Information Technology

For most companies, an Information Technology (IT) department can be very complex. With all of the network services and applications ...
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Introducing Troubleshooting Methodology

As a computer technician, a server administrator, or a network administrator, you will eventually have to deal with problems. Some ...
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Booting the System

One of the most frustrating problems to troubleshoot is when Windows does not boot and you cannot log in to ...
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Understanding Performance

Performance is the overall effectiveness of how data moves through the system. Of course, it is important to select the ...
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Introducing Business Continuity

When a server goes down, it will most likely cause your company to lose money. If your network contains an ...
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The Practice tests included in this course are:

98-365 Windows Server Administration Fundamentals Practice Test 1

Instructions for 98-365 Windows Server Administration Fundamentals Practice Test 1 This page shows the instructions for 98-365 Windows Server Administration ...
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98-365 Windows Server Administration Fundamentals Practice Test 2

Instructions for 98-365 Windows Server Administration Fundamentals Practice Test 2 This page shows the instructions for 98-365 Windows Server Administration ...
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98-365 Windows Server Administration Fundamentals Practice Test 5

Instructions for 98-365 Windows Server Administration Fundamentals Practice Test 5 This page shows the instructions for 98-365 Windows Server Administration ...
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98-365 Windows Server Administration Fundamentals Practice Test 4

Instructions for 98-365 Windows Server Administration Fundamentals Practice Test 4 This page shows the instructions for 98-365 Windows Server Administration ...
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98-365 Windows Server Administration Fundamentals Practice Test 3

Instructions for 98-365 Windows Server Administration Fundamentals Practice Test 3 This page shows the instructions for 98-365 Windows Server Administration ...
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