Adaptec 2940U - AHA Storage Controller Ultra SCSI 20 MBps Technické informace stáhnout pdf (Strana 16)

2 MetaFrame Solutions Guide

Organizations seeking to broadly deploy line-of-business applications across the

enterprise face a diverse set of challenges associated with cost, management, and

performance:

LAN-Locked Applications. Most business applications, such as two-tier

client/server, are designed for the LAN and are not optimized to run over high-

latency phone or WAN connections that run 100 to 1000 times slower than a

local segment.

New Users. Today’s corporate computing infrastructure is built for employees,

not a company’s prospects, customers, and suppliers.

Heterogeneous Clients. Not everyone uses or needs a PC on the desktop.

Some use non-Windows systems such as OS/2, UNIX, or Macintosh. Some

need low-cost, fixed function devices, such as terminals. Others need new

devices such as wireless tablets and personal digital assistants (PDAs).

Management. Managing access (security), version control (maintenance),

system configuration (moves, adds, deletes), and support (help desk) are very

costly, particularly for distant users.

MIS rarely has the luxury of deploying mission-critical applications in a

homogeneous environment, let alone from a centralized location. Instead, the

enterprise network usually includes a widely dispersed variety of servers, client

workstations, and operating systems. A variety of wide area connections joins

remote office LANs throughout the nation or the world. The user base can include

from dozens to thousands of local, remote, mobile, and telecommuting users.

MIS rarely has the luxury of deploying mission-critical applications in a

homogeneous environment, let alone from a centralized location. Instead, the

enterprise network usually includes a widely-dispersed variety of servers, client

workstations, and operating systems. A variety of wide area connections joins

remote office LANs throughout the nation or the world. The user base can include

from dozens to thousands of local, remote, mobile, and telecommuting users.

What Is Server-Based Computing?

Server-based computing is a logical, efficient evolution of today’s networking

environments that gives organizations a way to extend resources, simplify

application deployment and administration, and lower the total cost of application

ownership.

With server-based computing, applications are deployed, managed, supported, and

executed completely on a server. Client devices, whether “fat” or “thin,” have

instant access to business-critical applications on the server, without application

rewrites or downloads. Because server-based computing works within the current

computing infrastructure and standards, it is rapidly becoming the most reliable

way to reduce the complexity and total cost of enterprise computing.

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Adaptec 2940U - AHA Storage Controller Ultra SCSI 20 MBps Technické informace Strana 16