Red Hat enteRpRise Linux extended Life Cycle Overview

kettleproduceΛογισμικό & κατασκευή λογ/κού

2 Δεκ 2013 (πριν από 3 χρόνια και 6 μήνες)

79 εμφανίσεις

1www.redhat.com
Upgrade YoUr operating SYStem When it’S right for YoU
The 10-year life cycle for Red Hat Enterprise Linux (RHEL) ensures Application Binary Interface
(ABI) and Application Programming Interface (API) stability throughout the support period for
Red Hat Enterprise Linux with regular delivery of technology updates and security packages.
Yet some Red Hat customers prefer to stay on their current version of Red Hat Enterprise Linux,
and not upgrade as new releases become available. There may be a number of different rea-
sons for this decision — internal cost avoidance, application compatibility, or simply to defer the
decision to a later point. Yet no matter the reason, Red Hat believes that an operating system
upgrade should never be forced on the customer. Any subscription to Red Hat Enterprise Linux
provides access to all releases that are in their 7-year regular life cycle and most versions that
have reached end-of-life as well.
To help our customers gain complete flexibility over their operating system upgrade, and to
upgrade when the time is right for them — not their vendor — Red Hat delivers life cycle Add-Ons
for Red Hat Enterprise Linux. Our Life Cycle Management Add-Ons — Extended Update Support
(EUS) and Extended Life Cycle Support (ELS) — give you the flexibility you require to make sure
you get the most out of your IT environment and run your business in the way that works for you.
• extended Update Support (eUS)
For those organizations that wish to stay on a particular snapshot for an extended period of
time, Red Hat offers the Extended Update Support Add-On, which extends the support period
of a Red Hat Enterprise Linux update to 24 months and delivers overlapping minor release
support to give enterprise customers more flexibility.
• extended Life Cycle Support (eLS)
The Red Hat Enterprise Linux Extended Life Cycle Support (ELS) Add-On extends the regular
7-year life cycle of Red Hat Enterprise Linux by three more years providing a total life span
of 10 years for every major Red Hat Enterprise Linux version.
WHITEPAPER
Red Hat enteRpRise Linux
extended Life Cycle Overview
The Life Cycle Is Broadly Divided into Four Individual Phases:
Year 6 Year 9Year 4 Year 5Year 3
Year 2Year 1
Year 7 Year 10Year 8
ELS
(additional 3 yrs)

Production 1 Production 2 Production 3




2www.redhat.com
oVerVieW
Why Life Cycle Management Is So Important
To understand why these Red Hat Enterprise Linux Life Cycle Management Add-Ons are so
valuable, it is important to first understand how the traditional Red Hat Enterprise Linux
Life Cycle works.
As described earlier, the regular 7-year life cycle for Red Hat Enterprise Linux ensures a
particular version is stable and supported with regular delivery of technology updates and
security packages. During the regular life cycle phase, Red Hat engineering actively develops
against that major release. New features, optimizations, and hardware enablement are included
as part of the regular life cycle minor releases.
This life cycle allows customers and partners to effectively plan, deploy, and support their
Red Hat Enterprise Linux operating system, knowing that the operating system will be
keeping pace with industry advancements. The regular life cycle is designed to reduce the
level of change within each major release over time as well as to increase predictability and
decrease maintenance costs.
Throughout the entire life cycle, software changes to Red Hat Enterprise Linux are delivered
via individual updates known as errata advisories. Errata advisories generally contain security
updates, bug fixes, or feature enhancements. If the issue may have a high impact, such as a
newly identified security vulnerability, the fix is provided to all Red Hat subscribers immediately.
These updates are referred to as asynchronous errata. Asynchronous errata tend to be few and
focused on specific use cases or software packages. General updates and feature enhancements
are aggregated as part of a minor release. The minor releases also include the asynchronous
errata and provide a reliable check-point for customers to ensure their systems are up-to-date.
Red Hat maintains binary compatibility for the core runtime environment across all asynchro-
nous errata advisories and minor releases. Additionally, major releases of Red Hat Enterprise
Linux contain a limited set of backward compatible libraries from the previous major releases
to allow for the easy migration of applications. In order to minimize the amount of change, any
fixes are backported to the respective version of Red Hat Enterprise Linux.
a CLoSer Look at the red hat enterpriSe LinUx Life CYCLe
The Red Hat Enterprise Linux Life Cycle is broadly divided into four individual phases:
Production 1, Production 2, Production 3, and an optional extended life cycle, which is possible
with the ELS Add-On. See below for a detailed view of the Red Hat Enterprise Linux Life Cycle.
This gives Red Hat Enterprise Linux customers a life cycle of up to 10 years if they choose.
WHITEPAPER

RED HAT ExTENDED LIFE CYCLE OvERvIEw
Red Hat Enterprise Linux
Life Cycle is broadly divided into
four phases:
• Production 1
• Production 2
• Production 3
• Extended Life Cycle Support
(ELS)
3www.redhat.com
WHITEPAPER RED HAT ExTENDED LIFE CYCLE OvERvIEw
Production 1
During Production 1, qualified security errata advisories of important, critical impact, and
urgent priority bug fix errata are released as they become available. If available, new or
improved hardware support and select enhanced software functionality may be provided via
minor releases. Also, qualified security advisories of critical impact and urgent priority are
released as they become available.
Production 2
During Production 2, the same important, critical impact, and urgent priority bug fix errata are
released. Refreshed hardware support that does not require substantial software changes may
also be provided via minor release. New software functionality is not available during this phase.
Production 3
During the Production 3, qualified security errata advisories of critical impact — as well as
selected urgent priority bug fix errata — may be released as they become available. No new
functionality, new hardware support, or updated installation images are planned for release in
Production Phase 3. Additionally, there are no minor releases planned during this phase.
For complete details on each production phase, please see the chart below:
Production I Production 2

Production 3
Extended Life
Cycle Support
Extended
Update Support
Access to previously released
content in Red Hat Network
Yes Yes Yes Yes Optional
7
Self-help through documentation,
Red Hat Knowledge Base, etc.
Yes Yes Yes Yes Optional
7
Unlimited Incident
Technical Support
1
Yes Yes Yes Optional
7
Optional
7
Asynchronous Security Errata Yes Yes Yes Optional
7
Optional
7
Asynchronous Bug Fix Errata
2
Yes Yes Yes Optional
7
Optional
7
Service Packs Yes Yes No No N/A
Refreshed Hardware
Enablement
3
Native Limited
4
Native Through
virtualization
Through
virtualization
Through
virtualization
Software Enhancements
5
Yes
6
No No No No
Updated Install Images Yes No
8
No No No
SoFTWARE MAInTEnAnCE
PER PHASE oF RED HAT
EnTERPRISE LInUx
LIFE CyCLE
Footnotes to chart above:
1. Support access depends on the service level chosen for your Red Hat Enterprise Linux Subscription. Full details of Support Services are
provided as part of the Subscription Agreement.
2. Red Hat may choose to address catastrophic issues with a significant business impact for the customer through a Hotfix as a temporary
measure while the bug fix errata is being created.
3. Native hardware enablement is provided by backporting hardware drivers, etc. Hardware enablement through virtualization is achieved by
running a prior version of Enterprise Linux as a virtual guest on a newer version of Red Hat Enterprise Linux.
4. Limited to hardware that does not require substantial software changes
5. Software enhancements are additions of functionality beyond correcting defects or enabling previously existing functionality on a new
hardware generation.
6. Major releases are the primary vehicle for software enhancements.
7. See Extended Life Cycle description on the next page.
8. Unless required because of install-path defects
4www.redhat.com
extend the Life CYCLe of red hat enterpriSe LinUx
while the standard 7-year life cycle for Red Hat Enterprise Linux ensures stability
throughout the support period for Red Hat Enterprise Linux, two Life Cycle Management
Add-Ons can extend the life of your Red Hat Enterprise Linux operating system, giving
your complete flexibility and control over your upgrade process.
Red Hat Enterprise Linux Extended Update Support (EUS) Add-on
Extended Update Support (EUS) gives customers the flexibility to decide when to take advan-
tage of new features in Red Hat Enterprise Linux and new server hardware. The longer support
window for a minor release allows customers to efficiently plan their resource and deployment
cycles based on internal requirements while maintaining a secure system.
The EUS Add-On provides an independent life cycle for specific Red Hat Enterprise Linux minor
releases in parallel to the otherwise single, incrementally maintained Red Hat Enterprise Linux
stream of releases. Active EUS subscribers receive critical impact security fixes and select
urgent priority defect fixes that are available and qualified for the respective individual minor
release for a specific duration.
Specifically, EUS allows customers to standardize on a specific minor release of Red Hat
Enterprise Linux 6 for 24 months instead of the normal, approximately 6-month timeframe.
This reduces the amount of internal testing and revalidation of newer features as well as the
amount of change introduced into their environment. Customers may now skip intermediate
minor Red Hat Enterprise Linux releases and still have a secure and stable application
operating environment.
Red Hat Enterprise Linux Extended Life Cycle Support (ELS) Add-on
The Extended Life Cycle Support (ELS) Add-On is available for renewal customers who need to
continue to use a specific version of Red Hat Enterprise Linux in a supported configuration and
allows customers to continue the use of major releases of Red Hat Enterprise Linux beyond its
standard life cycle.
This ELS Add-On provides critical impact security fixes and selected urgent priority defect fixes
that are available and qualified for a subset of the packages in a specific major releases of
Red Hat Enterprise Linux beyond the end of its regular 7-year life cycle. The individual ELS
streams will be maintained for an additional 3 years immediately after the end-date of the
regular life cycle of the relevant release (extending the potential life cycle to 10 years).
Red Hat Enterprise Linux Life Cycle Add-ons in Action
A construction and engineering firm recently migrated to Red Hat Enterprise Linux 6 and is
completely satisfied to be on this version, in part because of stringent IT mandates. Any IT-asset
investment or upgrade is made with a critical requirement: that the platform must be able to
adapt to changes the organization will encounter over the next 10 years to meet future business
challenges and objectives. Furthermore, the platform must stay secure and pass regular audits
by an outside security firm.
In this case, Red Hat Enterprise Linux 6 meets this requirement and has already been tested and
certified against the entire application environment. Further, this organization realizes future
upgrades will require extensive administrator time to deploy, test, and re-certify, and it also
questions whether or not new functionality may disrupt its mandate to managed and develop
systems over as many years as possible. They have planned to use the hardware platform as
long as possible, which they anticipate will be more than 5 years. Additionally, this platform is
already sized to manage the anticipated growth in usage and data.
WHITEPAPER RED HAT ExTENDED LIFE CYCLE OvERvIEw
5www.redhat.com
WHITEPAPER RED HAT ExTENDED LIFE CYCLE OvERvIEw
Red Hat’s Life Cycle Management Add-On solutions for Red Hat Enterprise Linux are the perfect
solution. See illustration below — A Use Case Example of Red Hat Enterprise Linux’s Life Cycle
Management Add-Ons. Rather than moving to the next version of Red Hat Enterprise Linux as
it comes out, this organization can choose to remain on Red Hat Enterprise Linux 6.4 using the
EUS option. They also anticipate that this application will be in production into 2020. They are
planning to extend their use of Red Hat Enterprise Linux 6 using ELS. As a result, this company
only has to upgrade twice over the life cycle of the applications. The IT department has more
flexibility to plan platform updates, and still achieve the stable, secure operating environment
that is right for its business objectives.
In this example of Red Hat Enterprise Linux 6, this organization chooses to remain on Red Hat Enterprise Linux 6.2
using the EUS option. They anticipate that this application will be in production into 2020 so they are planning to extend
their use of Red Hat Enterprise Linux 6 using ELS.
Case of User’s Experience with Red Hat Enterprise Linux 6 Life Cycle Management Add-ons
201220112010 2013 2014 2015 2016 2017 2018 2019
6.6 6.8 6.96.56.46.36.26.1 6.7
6.0
Install 6.2
Update to
6.6
Adds 3 years to 6.9 with ELS
P3P2P1
Update to
6.9
ELS
Note: Dates are for illustrative purposes only.
Extend w/EUS
Extend w/EUS
Extend w/ELS
exeCUtiVe SUmmarY
Red Hat is committed to deliver products that provide customers with more flexibility, choice
and better control of their infrastructure. whatever our customer life cycle needs are, Red Hat
provides options and choices for customers to migrate their environment when they are ready.
You can read about additional Add-On offerings by visiting http://www.redhat.com/rhel/add-ons/.
hoW to aCCeSS and order extended Life CYCLe SUpport
Red Hat Enterprise Linux Extended Life Cycle Support is delivered through Red Hat Network,
similar to the way regular Red Hat Enterprise Linux content is provided. Customers using
the RHN Satellite can make use of Satellite to manage ELS systems.
To order Red Hat Enterprise Linux Extended Life Cycle Support, please contact your local
Red Hat Account Representative.

WHITEPAPER
Please visit
http://www.redhat.com/security/
updates/errata/ for information
on the Red Hat Enterprise Linux
Life Cycle policies and any
inclusion and exclusion within
the scope of the life cycle.
Copyright © 2011 Red Hat, Inc. Red Hat, Red Hat Enterprise Linux, the Shadowman logo, JBoss, MetaMatrix, and RHCE are trademarks of
Red Hat, Inc., registered in the U.S. and other countries. Linux
®
is the registered trademark of Linus Torvalds in the U.S. and other countries.
www.redhat.com
0000000_12.13
SALES AnD InQUIRIES
LATIn AMERICA
+54 11 4329 7300
www.latam.redhat.com
info-latam@redhat.com
noRTH AMERICA
1–888–REDHAT1
www.redhat.com
EURoPE, MIDDLE EAST
AnD AFRICA
00800 7334 2835
www.europe.redhat.com
europe@redhat.com
ASIA PACIFIC
+65 6490 4200
www.apac.redhat.com
apac@redhat.com
Red Hat was founded in 1993 and is headquartered in Raleigh, NC. Today, with more than
60 offices around the world, Red Hat is the largest publicly traded technology company fully
committed to open source. That commitment has paid off over time, for us and our customers,
proving the value of open source software and establishing a viable business model built
around the open source way.
ABoUT RED HAT