Red hat公司对Oracle的回应-红联Linux系统门户

作者：Chinaunix　来自：Chinaunix
　　毫无疑问，Linux是一个日益膨胀的市场。Oracle决定对Linux提供全方位支持再一次证明了Red Hat在业界的领导地位，同时也再一次宣告了专有Unix即将寿终正寝。Red Hat连续两年被广大CIO评为最有价值的公司绝非偶然。更多内容请见下文。

　　Red Hat & Oracle合作伙伴关系

　　Q:Oracle最近的一系列声明会改变Red Hat与Oracle的伙伴关系吗？

　　A:不会。Red Hat与Oracle已经开展了7年卓有成效的合作。Red Hat将继续与Oracle密切配合，针对Oracle产品对红帽企业Linux(Red Hat Enterprise Linux)和JBoss中间件做一些特别优化，更好地为我们共同的客户提供支持服务。

　　Red Hat & JBoss订阅

　　Q:Oracle的声明中是否包括对Red Hat Application Stack、JBoss, Hibernate、Red Hat GFS、Red Hat Cluster Suite、Red Hat Directory Server或Red Hat Certificate System的支持？

　　A:不包括。Oracle不对上述任何领先的开源产品提供支持。

　　硬件兼容性

　　Q:Oracle声称他们的Linux支持包括与红帽企业Linux完全相同的硬件兼容性和认证。是这样的吗？

　　A:不是的。Oracle表示他们将对代码做一些独立于Red Hat之外的更改。这些更改不会在Red Hat的硬件测试和认证流程中得到测试，因此，它们有可能导致意想不到的后果。所以说，Red Hat的硬件认证对于Oracle而言是无效的。

　　软件兼容性

　　Q:Oracle声称他们的Linux支持包括与红帽企业Linux完全相同的软件兼容性和ISV认证。是这样的吗？

　　A:不是的。Oracle表示他们将对代码做一些独立于Red Hat之外的更改。这些更改不会在Red Hat的软件测试和认证流程中得到测试，因此，它们有可能导致意想不到的后果。所以说，Red Hat的软件认证对于Oracle而言是无效的。

　　二进制兼容性

　　Q:Oracle的Linux支持能够与红帽企业Linux实现二进制兼容吗，原来在红帽企业Linux上运行的应用是否在Oracle的Linux上可继续运行？

　　A:没有办法保证Oracle所做出的修改后仍能保持API(应用程序编程接口)或ABI(应用程序二进制接口)的兼容性，程序代码可能会出现一些材料／来源上的区别而导致应用不能运行。与红帽企业Linux是否兼容只能由Red Hat的内部测试套件来验证。

　　源代码兼容性

　　Q:Oracle的产品是否会发展为Linux操作系统中的另一个“分叉”？

　　A:没错。根据Oracle声称要做出的一些改变来看，他们会开发出一套与红帽企业Linux不同的代码库。简单说，它将演变为一种与红帽企业Linux不同的系统，因此无法保证与红帽企业Linux硬件和应用生态系统的兼容性。

　　更新

　　Q:Oracle说他们将提供与红帽企业Linux相同的更新服务。他们能做到吗？

　　A:开发二进制兼容的软件需要付出多方面的努力。其中一点就是源代码，另一要素则是开发和测试环境。尽管Oracle或许能够在Red Hat更新版本发布之后获得源代码，但其开发和测试环境与红帽企业Linux相比显然有着本质的区别。出于诸如此类的原因，无法保证红帽企业Linux的更新源代码在集成到Oracle修改过的Linux代码库之后能够正确工作。

　　支持 & 维护生命周期

　　Q:客户是否需要升级到最新的版本才能享受Red Hat的支持和维护服务？

　　A:不需要。Red Hat的订阅客户可以享受7年内发布的所有版本产品的支持和更新服务。贯穿这段时间，Red Hat还将常规维护版本作为红帽企业Linux订阅服务的一部分提供给客户。此外，我们还通过一个“hot-fix”流程(根据特定客户需求来提供关键补丁)来完善我们的支持服务。而Oracle却在其Oracle Enterprise Linux支持策略中表示“保留对某些版本的Enterprise Linux程序不提供支持的权力”。

　　支持级别的灵活性

　　Q:Red Hat允许客户根据自己的需求来选择适当的支持级别吗？

　　A:是的。许多客户是根据其应用的SLA需求购买相应的红帽企业Linux订阅级别。比方说，客户可以为非业务关键的文件和打印服务器选购基本订阅，而为数据库服务器选购高级订阅。Oracle就没有这么灵活了，他们的支持策略是这么说的：“如果购买了Enterprise Linux高级支持，那么客户所有由Oracle提供支持的系统必须是Enterprise Linux高级支持服务。”

　　安全性

　　Q:Oracle能够向客户提供与红帽企业Linux同样及时的安全更新吗？

　　A:不能。从红帽企业Linux更新发布到Oracle获得源代码之间必然有一段时间的延迟。并且，无法保证红帽企业Linux的更新源代码在集成到Oracle的Linux代码库之后能够正确工作，此类的集成和测试必然要花费额外的时间。如果某项更新是用来修复关键安全漏洞的，那么在这种情况下，Oracle的客户承担风险的时间更长。

　　可信的Linux

　　Q:红帽企业Linux拥有各种政府颁发的安全认证，包括EAL 4＋和CAPP。Oracle版的Linux是否就直接获得了这些认证？

　　A:不是。这些安全认证是专门针对特定的软硬件配置而颁发的。像Oracle那样，一旦对软件做了任何更改，这些认证便不再有效了。

　　客户协同关系

　　Q:Oracle的Linux客户能否像红帽企业Linux客户那样在软件开发中扮演重要的角色？

　　A:就红帽企业Linux而言，我们与客户的协同关系在新版本软件的设计之初就已形成。这种协同关系贯穿软件的整个开发、测试、生产和部署过程。而一个衍生版本产品的厂商无法给客户提供协同合作的机会。

　　合作伙伴支持

　　Q:Dell、HP和IBM等硬件制造商均为红帽企业Linux提供支持。Oracle在这方面有何不同？

　　A:Red Hat的硬件合作伙伴在Red Hat的支援下为广大客户提供一线支持。Red Hat与这些合作伙伴之间有着紧密的合同关系，不仅在培训方面有着特别的要求，而且在服务升级路径、Red Hat三级支持以及协调客户管理等诸多方面都有着严格的界定。我们的共同客户与Red Hat客户所享有的协同程度是完全等同的。

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