這套免費的虛擬主機建置軟體, 功能甚至超越了VMWare ESXi 4, 5.6 更是釋放了一些 Xen商業版的虛擬主機程式的功能! 可以參考看看!
下載的檔案確定是 5.6 ISO 檔, 包括 XenCenter 也一併更新了, 記得要一起下載!
http://citrix.com/English/NE/news/news.asp?newsID=2300693
上面是 5.6 各版本更新的功能! Free 版的說明摘要:
The XenServer 5.6 Free edition enhances the existing enterprise features to extend the limits of host memory, CPU, network and operating system support. While the free edition already provides a rich feature set for enterprises to deploy and centrally manage full enterprise-class virtualization on any number of servers with no upfront costs, the enhancements in XenServer 5.6 enable virtualization users to achieve greater server consolidation ratios, flexibility and best-in-class VM density for server, cloud and desktop workloads.
http://66.165.176.42/display/ocb/2010/05/28/XenServer+5.6+-+A+Conversation+on+What's+New
這裡有比較詳細的功能新增說明!
之前 5.5 的版本有一個問題是記憶體的使用, 一旦 guest OS 記憶體如果設定超過實體RAM的話, 就無法新增或是開機, 這版有改進了!
Dynamic Memory Control. Let's say you have a few XenServer hosts. You need to spin up some more VMs, but your VMs are configured to use all available resource pool memory. However, you know that some of the existing VMs aren't using all the physical memory you've allocated. With XenServer 5.6, you can set memory ranges for VMs so that you can squeeze the physical memory used for existing VMs in order to let new ones on. If you find that one or more VMs operating near the lower limit requires more memory, you can increase the minimum level on the fly without rebooting.
其餘的部分就各自參考啦 :inlove:
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