为什么你不想使用云计算 [英] Why would you not want to use Cloud Computing

问题描述

我们公司正在考虑从托管我们自己的服务器到EC2，我想知道这是不是一个好主意。

我看过很多东西云计算（特别是EC2）做x，或者它可以做y，但我的真正的问题是为什么你不想使用它？

如果你设置一个企业，什么原因（成本外），你会选择去经历管理自己的服务器的麻烦？

我知道您可以在带宽，磁盘使用等方面进行大量的成本计算，但是当然还有其他关于维护您自己的服务器的费用。为了这个讨论，我愿意考虑成本大致相等。

我似乎记得，乔尔·斯波尔斯基在这一次有点模糊，但我

任何人都有任何原因？

谢谢！我可以想到为什么不使用EC2的几个原因（我在说的是EC2，而不是一般的网格补偿）：

$ b $

b

• 可靠性：亚马逊不保证EC2的可用性/停机时间/安全


• 安全性：亚马逊不会对谁向其披露您的数据提供任何保证


• 持久性：确保数据包括，努力设置系统）比EC2复杂


• 管理：EC2上部署的云集成管理工具非常少


• 网络：允许EC2实例通信的虚拟网络具有一些相当痛苦的限制（延迟，无多播，任意拓扑位置）






完成此操作：






• > ：从长远来看，如果你不使用EC2吸收高峰流量，它会比投资到自己的服务器（廉价服务器，如Supermicro成本只是几百块钱更昂贵...） 。）






另一方面，我认为EC2是吸引非敏感高峰流量的好方法，允许它。




Our company is considering moving from hosting our own servers to EC2 and I was wondering if this was a good idea.

I have seen a lot of stuff about can cloud computing (and specifically EC2) do x, or can it do y, but my real question is why would you NOT want to use it?

If you were setting up a business, what are the reasons (outside of cost) that you would choose to go through the trouble of managing your own servers?

I know there are a lot of cost calculations you can put in regarding bandwidth, disk usage etc, but there are of course, other costs regarding maintenance of your own server. For the sake of this discussion I am willing to consider the costs roughly equal.

I seem to remember that Joel Spolsky wrote a little blur on this at one time, but I was unable to find it.

Anyone have any reasons?

Thanks!

解决方案

I can think of several reasons why not use EC2 (and I am talking about EC2, not grid comp in general):

• Reliability: Amazon makes no guarantee as to the availability / down time / safety of EC2
• Security: Amazon does not makes any guarantee as to whom it will disclose your data
• Persistence: ensuring persistence of your data (that includes, effort to set up the system) is complicated over EC2
• Management: there are very few integrated management tools for a cloud deployed on EC2
• Network: the virtual network that allows EC2 instances to communicates has some quite painful limitations (latency, no multicast, arbitrary topological location)

And to finish that:

• Cost: on the long run, if you are not using EC2 to absorb peak traffic, it is going to be much more costly than investing into your own servers (cheapo servers like Supermicro cost just a couple of hundred bucks...)

On the other side, I still think EC2 is a great way to soak up non-sensitive peak traffic, if your architecture allows it.

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