Scaling up involves upgrading the hardware or optimizing the software to ensure that a single server machine set can support more users.

向上扩展包括升级硬件或优化软件以确保单个服务器机组能够支持更多用户。

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For instance, scaling up an application using a larger virtual machine (VM) on Amazon Elastic Compute Cloud (EC2) can be a quick fix when large-scale computing power is needed right away.

比如，当很紧急地需要大规模计算能力的时候，在Amazon Elastic Compute Cloud (ec2)上可以非常快地升级一个应用，让它使用更大的虚拟机。

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Number of users supported for a given machine configuration, to measure the scaling up ability of the application.

特定的机器配置能够支持的用户数，可以衡量应用程序的向上扩展能力。

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The wrong way to build these is through rapid scaling around a hype-led fundraising machine.

FORBES: Four Types of "Premature Scaling" in Biotech