FREQUENTLYASKEDQUESTIONSABOUTOPENSAFRELEASE4

1、FREQUENTLY ASKED QUESTIONS ABOUT OPENSAF?RELEASE 4.0What is OpenSAF?The term OpenSAF actually refers to several different entities. First, OpenSAF is an opensource community with projects focused developing on high availability (HA) middleware thatis consistent with the specifications created by the

2、Service Availability? Forum (SA Forum?).The OpenSAF project is supported by the OpenSAFFoundation, a not-for-profit organizationestablished by leading communications and computing companies to facilitate the work of theproject and to accelerate the adoption of OpenSAF in commercial products. More in

3、formationcan be found at/.OpenSAF software is designed to be the core component of a highly available software stackthat can be used in mission-critical applications in many industries. OpenSAF software,combined with a carrier-grade operating system and fault-tolerant hardware,

4、is used to buildnetwork elements and other equipment meeting stringent system availability requirements.What is OpenSAF Release 4.0?OpenSAF Release 4.0 is the latest version of the work of the OpenSAF HA middleware project,which became available in June 2010. OpenSAF 4.0 is the first HA middleware t

5、o implement allmajor functions of the SA Forum Application Interface Specification without needingaugmentation from other sources.How do I obtain it?OpenSAF 4.0 is available for free download from /wiki/downloads/.The OpenSAF code is licensed under the GNU Lesser General Publi

6、c License, version 2.1(LGPL v2.1), and anyone may contribute to the code base.Is there an ecosystem supporting OpenSAF?Yes, and as with any successful open source project, there are several key characteristics of theecosystem. The OpenSAF project is a vibrant and growing developer and user community

7、. Thecore developer base has approximately 40 people, and this is backed by additional development,test and application teams in commercial companies. The user and developer mailing lists havewell over 1,000 people and the average daily volume of email has reached over 50 during thefinal phase of Re

8、lease 4.0.The OpenSAF project is backed by the OpenSAF Foundation, which represents a growingnumber of commercial companies who have publicly expressed their support for the project.Additionally, a commercial ecosystem is growing around OpenSAF as it increasingly emergesas a de facto standard for hi

9、gh availability systems. This includes adopters of the technology,distributors of the code base and companies providing services and support around OpenSAF.To learn more, visit the Foundation website at:/Products-&-Services21607214944.htm.Is there documentation available to

10、help developers with OpenSAF applications?Yes. In addition to the OpenSAF software, a full set of documentation describes all the services.A set of sample applications and makefiles is included that accelerates the development ofapplications. The sample applications illustrate the use of the various

11、 APIs and serve as aconvenient starting-point for development.What are the benefits of using OpenSAF software?As the OpenSAF project has evolved, there is recognition that it has applications in a broadrange of industries. Applications are not limited to traditional areas such as communications,wher

12、e 99.999% uptime is a standard requirement, or aerospace and defense, where missioncritical systems guard against catastrophic failure. The need for high availability extends tomany Enterprise segments where there is a need to minimize planned downtime andeliminate unplanned downtime.By adopting Ope

13、nSAF across multiple product lines, organizations take advantage of astandards-based, Commercial-Off-The-Shelf (COTS) open source middleware component todeliver more cost-effective solutions. Using OpenSAF helps companies get new equipment andapplications to market faster, which increases their retu

14、rn on investment. The new features inOpenSAF 4.0 provide a comprehensive solution for high availability middleware, and also allowan adopter to use a subset of the services that are suitable for a specific application. Thisincludes using OpenSAF in systems with limited high availability, where featu

15、res such as near-seamless software upgrades and maintenance are increasingly important.Because OpenSAF is an open source solution, there are additional advantages not found withproprietary implementations. OpenSAF allows users to leverage the work of a broad communityof developers and to benefit fro

16、m Open Source business models and licensing. OpenSAF usershave access to a complete HA ecosystem, including commercial OpenSAF providers, hardwarevendors supporting OpenSAF and software vendors that integrate support for OpenSAF in theirapplications.What are the new features in OpenSAF 4.0?OpenSAF 4

17、.0 includes several key new features that improve scalability, and management ofhardware and software. Important new services include the Software Management Framework(SMF), which allows management of both OpenSAF as well as application code, providing in-place upgrade capabilities for applications.

18、 Another new addition is the Platform Managementservice (PLM), which provides a bridge between OpenSAF and the Hardware PlatformInterface (HPI) specification. In addition, the OpenSAF code base was re-architected to bemuch more modular, resulting in improved scalability and packaging for application

19、s that do notrequire all the services available with OpenSAF.Details about the new features in OpenSAF 4.0 are available in a datasheet that canbe downloaded from /.Is OpenSAF only for telecommunications applications?Many industries now see the benefits of migrating from proprie

20、tary software to solutions based onopen source, which has increased demand for an open-source-based middleware solution thatmeets high availability industry standard interface specifications. Demand for 99.999% availabilityis increasing in a wide variety of applications. OpenSAF fulfills this need f

21、or industries such asmilitary and aerospace, financial and industrial automation, as well as telecommunications.What platforms does OpenSAF support?With OpenSAF 4.0, all commonly used redundant hardware platforms are now supported.Does OpenSAF now address all the specifications developed by the SA F

22、orum?OpenSAF implements the major services of the SA Forums Application Interface Specification,which is focused on creating highly available applications and services. The SA Forums otherdeliverable, the Hardware Platform Interface Specification, is not implemented in OpenSAF.Will OpenSAF develop s

23、oftware implementing the SA Forums HPI specification inthe future?Multiple robust HPI implementations already exist in the market, so there is no plan to work onHPI within the OpenSAF project. One example is OpenHPI http:/openhpi(.org), an opensource implementation that is widely used and deployed t

24、hrough its inclusion in multiple Linuxdistributions. Within OpenSAF Release 4.0, hardware management is handled through thePlatform Management Service (PLM), an interface to HPI that has been tested with OpenHPIand other HPI implementations.If I find bugs or anomalies in OpenSAF Release 4.0, how can

25、 I get them fixed?Because OpenSAF is developed using the open source model, it is a community effort,accessible to all who want to join the project and contribute their efforts toward fixing anomaliesand building enhancements. It is helpful to report bugs (/newticket), andthe

26、community will determine the order and priority of specific work items. If there is an itemthat is very important to your implementation, we recommend that you work on your ownsolution and then donate it back to the project, according to the terms of the GNU license.When will the next version of OpenSAF be released?In many ways, OpenSAF 4.0 is the realization of the OpenSAF communitys initial vision. Thus,its expected that future releases will be phased enhancements and additions, such as increasingthe sophistication of the SMF implementation. The Open