Since 2002, Red Hat
has steadily expanded its range of open
source, commercially focused operating
system and middleware products. These
products provide the industry's premier
Linux environment for commercial deployments.
The operating system products, sold
by annual subscription under the name
Red Hat Enterprise Linux, have been
rapidly adopted and supported by a wide
range of Independent Software Vendors
(ISVs) and Original Equipment Manufacturers
(OEMs). They offer excellent performance,
scalability, and security, and a comprehensive
array of services delivered by Red Hat
and its partners. As a result, Red Hat
Enterprise Linux solutions deployed
on certified commodity hardware and
running a wide variety of enterprise
caliber applications, are delivering
the capabilities of traditional proprietary
UNIX systems but at significantly lower
cost.
The Red Hat Enterprise Linux family
has been designed to cover the full
spectrum of corporate operating environments
in a simple and consistent manner. The
family is comprised of four products,
two designed for server systems, two
designed for client systems. There is
a high level of commonality across the
products, thereby ensuring that application
support, user environments, and management
tools are consistent. The products are
primarily differentiated by the level
of system architecture support, system
size, and service offerings Red Hat
Enterprise Linux supports multiple hardware
architectures including:
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Intel x86compatible
(32bit)
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Intel Itanium2 (64bit)
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Advanced Micro Devices
AMD64 (64bit) and Intel EM64T
-
IBM POWER series (eServer
iSeries and eServer pSeries)
-
IBM Mainframe (eServer
zSeries and S/390)
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Perhaps the most
important feature of Red Hat's multi-architecture
development process is that all implementations
are built from identical source code.
The primary benefit of this commonality
is that all the products are completely
compatible, regardless of architecture.
This assists ISVs in supporting their
applications on multiple architectures
and also simplifies system administration
and product support. |
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| Red
Hat Enterprise Linux provides benefits in
four key areas: |
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| A
STABLE AND MATURE INFRASTRUCTURE BASED ON
THE LINUX 2.6 KERNEL |
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Based on the LINUX
2.6 Kernel, Red hat Enterprise Linux 4
represent the most stable and mature commercial
Linux available. Red Hat proved the Enterprise-class
readiness of much of the 2.6 kernel technology
in the Enterprise Linux 3 release. As
a result, Red Hat Enterprise Linux 4 includes
mature technology deployed successfully
by many red hat customers and incorporates
a number of key improvements, based on
the Red Hat's Engineering efforts and
collaboration with the open source developer
community. |
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TECHNOLOGIES
TO MEET TODAY'S SECURITY AND COMPLIANCE
DEMANDS |
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Red Hat Enterprise
Linux 4 is the preferred platform for
the most demanding security organizations
in the world. Security enhanced is a completely
new subsystem in Enterprise Linux and
provides a superior security framework
to what is available in traditional and
commercial IT operating environments.
Red Hat Enterprise Linux 4 also incorporates
the new standard auditing framework for
Linux system which offers considerable
flexibility so that system calls and their
arguments can be filter by user, group,
process and device with a variety of options.
In August 2004 Red hat Enterprise Linux
3 achieved control access Protection Profile
compliance under the common criteria for
information security evaluation (CC),
commonly referred to as CAPP/EAL3+. |
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| PRODUCTIVITY
IMPROVEMENTS FROM THE DESKTOP TO THE CORE
OF THE DATA CENTER |
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Red hat Enterprise
Linux 4 includes core desktop applications
such as :
- Firefox TM, the new web browser
that is taking the work by storm
- OpenOffice, a high-Productivity,
multi-Platform, open source office
suite.
- Evolution TM the most popular email
and calendaring solution for Linux.
In addition, popular
media applications such as Real Player
® and Acrobat Reader ® are included,
Citrix ® and the open source Rdesktop
application allow user to connect a windows
terminal server to achieve heterogeneous
remote desktop solutions.
Red Hat Enterprise Linux 4 includes a
new Hardware abstraction layer that provides
robust plug-and-play hardware support.
Samba-- Red Hat Enterprise Linux 4 Includes
samba 3.0 for interoperability with windows
file sharing and printing using the SMB/CIFS
standards. The GNOME desktop environment
automatically discover the local area
network. |
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| EXCEPTIONAL
PERFORMANCE AND SCALABILITY
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Red Hat Enterprise
Linux 4 improves performance and scalability
with the following features:
- Ext file system and logical volume
Manager 2 (LVM2)
- Virtual Memory subsystem
- I/O subsystem
- Processor Scheduler for hyperthreaded
and multicore devices
- SMP and NUMA
- n PCI Express
- Networking Components
- Auto Fsv.4
- GCC 3.4
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| SYSTEM CAPACITY
LIMITS |
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Red Hat continually
testing and qualifying Red Hat Enterprise
Linux on variety of systems. Please refer
to redhat.com.software/rhel/configuration
for latest information on supported system
configuration details, like the number
of CPUs or the amount of memory supported
for each Red Hat Enterprise Linux released. |
