Piff在本周三举行的2011年IDC亚太云计算大会上说，近期对亚太地区（包括日本）公司进行了一项关于云计划的IDC调查，此次调查也反映出了对云计算的情非得已。调查结果显示，与发展中国家市场（如：印度尼西亚、泰国）相比，发达国家市场（如：新加坡、香港）对云服务的使用更加谨小慎微。
Piff说，不过，当前企业担心的问题正在慢慢提出。就服务可靠性和正常运行时间来说，公共云的用户逐渐意识到了这些服务的含义，他补充道。
Piff举例指出了亚马逊网络服务系统（AWS）四月遭受的服务中断。他指出：在这种情况下，虽然云服务供应商有责任维护服务正常运行，但是用户也要务必确认已经按照AWS的服务等级协议建议的方法对自己的故障转移系统进行了计划和部署。分析指出，公共云自身不安全，所以用户无论如何要确保有应变计划。
他进一步引用了五月IDC云计算论坛上产生的民意测试结果，结果显示，49.7%的被调查者认为2015年以前，主要的公共云供应商会有效处理正常运行隐患，可靠性将不再是移入云的主要问题。
关于数据主权的问题，Piff 称，云服务供应商意识到那些特定垂直行业的企业（如：金融业）总是需要在本地存储数据。他说，亚太地区将倾注大规模投资建设新数据中心，截至今天六月三十号，投资数额已达37亿美元。
以Google为例，九月宣布其正在新加坡建立一个数据中心，与此同时，云计算和管理托管服务供应商Softlayer Technologies也在同月推出了自己的数据中心。
考虑到以上情况，Piff 预计2015年前云计算将处于主流地位。
“未来四年云计算用户将会取得很大进步，整合的云计算系统将和其他类一起涌出。云计算将成为IT类成熟的一员。”
挖掘企业状态
Arista Networks副总裁、论坛发言人 Doug Gourlay说，虽然云计算的应用将要腾飞，但是公司需要接受“云计算不是企业”的说法。
他指出，企业通常倾向于构建一次，然后“祈祷”系统之后不要出现问题。然而，这与云计划应有的处理方法相悖。
Gourlay说：“要想取得云计算的成功，IT业需要快速构建、部署、失败，然后从错误中吸取教训，进行二次部署。
他还呼吁公司远离传统的IT供应商，如：Cisco Systems,、IBM 和 Oracle，因为他们的云版本不划算、扩展性差。
他建议，再重新考虑IT基础设施以及企业用户的配置技术时，应仿效网络公司，如：Facebook,、Amazon 和Google等。
SINGAPORE--Cloud computing will reach mainstream adoption in the enterprise market by 2015 when key issues such as security, service availability and data sovereignty are expected to be ironed out.
According to Simon Piff, associate vice president for enterprise infrastructure research at IDC Asia-Pacific, businesses today are still hesitant in utilizing cloud computing for much of their IT needs due to concerns over security, service reliability, data location and sovereignty, as well as vendor support.
This reluctance was reflected in a recent IDC survey on companies in Asia-Pacific, excluding Japan, which were quizzed on their cloud plans, Piff said during his presentation at IDC Asia-Pacific's Cloud Conference 2011 held here Wednesday. The survey findings revealed that companies in developed markets such as Singapore and Hong Kong showed more reticence in using cloud services, compared with their counterparts in developing markets such as Indonesia and Thailand, the analyst noted.
However, the concerns enterprises have are currently being addressed, he said. In the case of service reliability and uptime, for instance, public cloud users are increasingly more aware of the implications associated with these services, he added.
Piff pointed to the service outages Amazon Web Services （AWS） suffered in April as an example. He noted that, in this case, while the cloud service provider had a responsibility in maintaining uptime, customers also recognized they would have to design and deploy their own failover system as recommended by AWS in its service level agreement. The analyst added that public cloud was ”inherently insecure“ so users should have contingency plans anyway.
He further cited a poll conducted at an IDC cloud forum held in May, which revealed that 49.7 percent of respondents agreed that, by 2015, major public cloud providers would have addressed uptime concerns so effectively that reliability would be a non-issue in moving to the cloud.
As for the issue of data sovereignty, Piff said cloud service providers recognize that enterprises in certain industry verticals such as financial will always need to house their data locally. To address this, he said ”massive investments“ are being poured into building new data centers across the Asia-Pacific region, to the tune of US$3.7 billion as of Jun. 30 this year.
Google, for instance, announced in September that it was setting up a data center in Singapore while Softlayer Technologies, a cloud computing and managed hosting service provider, also launched its data center here that same month.
With these factors in mind, Piff expects cloud computing to achieve mainstream status by 2015.
”Cloud users [will have] made significant progress in the [next] four years and integrated cloud systems well with the rest of the class. Cloud can then be considered a full-fledged member of the IT class.“
Ditch enterprise mindse
For cloud computing adoption to take off, though, companies will need to accept that ”cloud is not enterprise“, said Doug Gourlay, vice president of Arista Networks, who was also a speaker at the forum.
He noted that enterprises typically have the mindset of building once and ”praying“ that the system will not fail thereafter. This, however, runs counter with how cloud projects should be approached.
Gourlay said: ”For cloud to succeed, IT needs to build it, deploy, fail quickly, then learn from the mistakes and deploy again. There needs to be constant innovation in this space.“
He also called on companies to move away from traditional IT vendors such as Cisco Systems, IBM and Oracle because their vision of cloud is not cost-efficient and scalable.
Instead, he suggested businesses model after Web companies such as Facebook, Amazon and Google when it comes to rethinking their IT infrastructure and provisioning technology for business users.
(责任编辑：杜庆先)