Microsoft Windows NT 4.0 Guide Manual de usuario descargar pdf (Pagina 114)

Microsoft

Windows Server

™

2003 White Paper

Windows NT 4.0 Server Upgrade Guide 109

Several other IIS 6.0 performance and reliability features enable Web server consolidation,

including the following:

• Health monitoring. IIS 6.0 periodically checks the status of an application pool and automatically

restart it if Web sites and applications within that pool fail. As a result, application availability and

overall Web infrastructure reliability are increased.

• Application pools. IIS 6.0 application pools are a convenient means of administering a set of

Web sites and applications. Application pools increase reliability, because errors in one

application pool cannot cause another application pool—or the server itself—to fail.

• Automatic process recycling. IIS 6.0 automatically stops and restarts faulty Web sites and

applications based on a flexible set of criteria—including CPU utilization and memory

consumption—while queuing requests.

• Rapid-fail disabling. IIS 6.0 helps protect server and other applications by automatically disabling

Web sites and applications that fail too often within a short amount of time.

IIS 6.0 Manageability

Several important enhancements have been made in IIS 6.0 that provide new flexibility in how

Web server infrastructure is managed, including:

• XML-based configuration file. Configuration data is stored as XML statements in a plain text file

that can be edited using standard text editing tools and easily integrated with other system

management tools.

• Edit while running. This feature enables manual or programmatic changes to the XML-based

server configuration file while the server is running and without requiring a system reboot or

recompilation.

• Command-line administration and scripting. Many common management tasks can be

performed on single or multiple servers that are local or remote using a command-line interface.

IIS 6.0 also has a complete scripting environment for automating common system administration

tasks from the command line without having to use a graphical user interface.

• Support for Windows Management Instrumentation (WMI). WMI programming interfaces offer

flexible ways to manage the Web infrastructure.

These features can reduce the amount of time it takes to manage larger server workloads and

reduce staffing costs.

In addition, the IIS 6.management can be managed through the Windows System Resource

Manager (WSRM). WSRM enables an administrator to set application resource consumption

policies (for CPU and memory consumption, for example), to manage computer resources

according to policies, to apply policies on a date/time schedule, and to generate, store, view, and

export accounting records.

IIS 6.0 Security

Security is a critical aspect of server consolidation plans. With this release, IIS 6.0 reflects a focus

on security. For example, in early 2002, the development work of all Windows engineers—more

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