网络管理和云

EMA最近刚刚完成了负责任云研究计划的数据收集阶段，在云管理和运营方面，围绕网络管理和网络团队所扮演的角色，有一些有趣的结果。虽然人们对云的关注主要集中在应用平台、虚拟化系统和存储(作为打包服务可以远程访问)上，但对于网络将扮演的角色也存在很大的疑问。所有这些服务都必须通过网络访问，无论它们是封装在私有/内部云架构中的内部资源，还是驻留在公共云中的外部资源。事实上，当需要使用外部服务时，这些服务将必须覆盖广泛的区域，这就带来了明显更高的延迟以及潜在的带宽限制。此外，当一些基础设施属于您而另一些不属于您时，您如何可视化托管环境?交接在哪里?连接点在哪里?当响应性没有达到预期时，您如何排除网络团队不可避免的呼叫?这些似乎是一些严重的问题，然而，只有18%的受访者表示，他们经历过或预计会经历较差的服务质量，比如更多的停机时间、缓慢的响应或在迁移到云计算时错过sla。奇怪的是，与这种缺乏关注相矛盾的是，后来的回复表明性能和可用性是最重要的服务监控原则——超过50%的受访者认为这是唯一“非常重要”的原则。 Another fascinating discovery was that Network Operations is emerging as the most likely functional area of the organization which is or will be responsible for cloud service management – more than security, cloud/virtualization support, or data center/server operations! This might seem an expected response if the audience was largely a networking audience, but our research was gathered from a broad mix of practitioners, only 6% of whom claim to be part of the Network Operations group. When it comes to metrics that are in use or planned to be used, network-based measures also ranked very high. Overall application response time, which can be measured via passive network monitoring, was seen as second most popular, and network infrastructure performance ranked third. The only metrics that ranked higher (and only slightly so) were system or application availability (i.e. uptime). Granted that application response time can also be measured using other technologies, however if application-aware network infrastructure performance monitoring tools such as packet-based inspection are in place, then both can be derived from common, shared instrumentation. Further underscoring the importance of the network, our respondents indicated that network-specific monitoring tools are the most important type which they have integrated or are planning to integrate into their cloud computing monitoring systems – more important than tools specific to applications, systems, security, or storage. It’s worth pointing out that all of these categories received at least 50% acknowledgement and that network-specific was tops at 62%. And it’s also worth noting that BSM/SLM monitoring for cloud was a distant trailing priority, garnering a mere 27%. Expect much more detail to come as EMA completes analysis of this initial round of research into cloud management and operations. But for now, based on this initial pass through the results, it is clear that network monitoring and the network viewpoint is playing an important role in the mind of practitioners across the spectrum.