所以，如何使用过时的刀片式服务器机箱和它的服务器，而无需付费扩展硬件提供一个可靠的开发平台支持？
So, how do you use an outdated blade chassis and its servers to provide a reliable development platform without paying for extended hardware support?
虚拟化的一个优势就是扩展了计算硬件的功能，可允许一台计算机(主机)通过运行多个客户操作系统实现多个角色。
An advantage of virtualization is extending the utility of computing hardware, enabling a single computer (the host) to fulfill several roles by running multiple guest operating systems.
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。
Scaling up involves upgrading the hardware or optimizing the software to ensure that a single server machine set can support more users.
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