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云服务从一开始就对CIO发出了许多危险信号，但近来有两条新闻却在这个领域展示了一个诱饵转向法。如果企业正在重新考虑移动服务到云上，那么我们可以把责任归咎到Google（NASDAQ: GOOG）、EMC、VMware和Salesforce.com身上，Savio Rodrigues这样写到。
Rodrigues说Google宣布其App Engine云平台价格上调，所以需要负部分责任。该公司在过去把产品保持在beta版本即使该产品被广泛使用，对于消费者来说，这是好的，而且有几分乐趣，但是企业并不吃这一套。对企业来说，在产品测试阶段往往缺乏服务水平协议的支持，而且一旦产品获得“一般可用”的标签其定价就会变成未知数。
在单一定价模型下的beta版程序变成GA模型之后，其定价模型就会变得更昂贵、更复杂，这会引发企业不必要的并发症。已经宣布的App Engine价格上调—一些研发人员抱怨上调了50%--会立即开始赶走企业用户，Rodrigues报告。
“正在使用GA之前的云服务的企业研发人员和CIO无疑遭受了Google新定价的打击。”他写到，“对于企业来说，急剧增加的费用和App Engine新定价模型的复杂性将成为那些正打算采用定价指标还未确定的云产品的企业的前车之鉴。”
VMware和Salesforce.com也是进一步动摇云计算信心的罪魁祸首，Rodrigues写到。大约在一年前，供应商联手让VMware开发人员为Force.com云平台构建和部署应用程序。但是在上周的VMworld大会上，他们爆料厂商的战略联盟已经结束了。为了取代VMware在VMforce的功能，Salesforce.com购买了Heroku。
云平台提供商试图控制整个技术堆栈，Rodrigues抱怨说，让那些想要合作联盟为基础的平台的CIO处在一个不确定的位置。
“当这些合作关系瓦解的时候，就像VMforce的情况，依赖于那些合作关系的应用程序的开发和IT投资都需要迁移、重写甚至丢弃，导致时间、精力和金钱的浪费。为什么要开始这趟旅程呢？”他问到。
Cloud-based services have raised a number of red flags for CIOs from the outset, but two recent news items demonstrate a bait and switch in the sector. If enterprises are thinking twice about moving services to the cloud, the blame can be shared by Google (NASDAQ: GOOG), EMC, VMware and Salesforce.com, writes Savio Rodrigues at InfoWorld.
Google is partly to blame because of the pricing hike it announced for its App Engine cloud platform, Rodrigues writes. The company has a history of leaving products in beta even as they become widely used, and this is fine--and kind of fun--for consumers, but it doesn't work for enterprises. Not only is there a lack of service level agreement support for enterprises in the preview phase, but the pricing for the offerings once they are given "general availability" status is uncertain.
Getting used to an offering in beta under one pricing model only to be hit with a more costly and complicated one after it reaches GA mode creates unnecessary complications for enterprises. The announced cost hike for Apps Engine--which some developers complained was a 50 percent increase--immediately started driving enterprise users away, Rodrigues reports.
"Enterprise developer and CIO confidence in using pre-GA cloud services definitely takes a hit with Google's new pricing. Amazon Web Services appears to be the beneficiary," he writes. "For enterprises, the dramatically increased fees and complexity of App Engine's new pricing model will become the cautionary tale to those pushing an enterprise to adopt a cloud offering before the costs and pricing metrics are established."
The other culprits in further shaking confidence in the cloud are VMware and Salesforce.com, Rodrigues writes. The vendors had teamed up about a year ago to allow VMware developers to build and deploy applications for the Force.com cloud platform. But at the VMWorld conference last week, they broke the news that the vendors' strategic alliance is basically over. To replace the VMware functionality in VMforce, Salesforce.com bought Heroku.
Cloud platform providers try to control the whole technology stack, Rodrigues complains, and that leaves CIOs who want platforms based on partnerships and alliance in a precarious place.
"When these partnerships break down, as in the case of VMforce, developer and IT investments in applications that relied on these partnerships will need to be migrated, rewritten, or thrown away, resulting in wasted time, effort, and money. Why start that journey?" he asks.
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发表于 2012-1-12 12:28:32
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