It’s has been universally acknowledged that managing how to share CPU, memory, storage and network resources is the key to avoiding performance problems in any virtualization environment. This paper cover some lessons learned in years of experience managing capacity resources in a VMware environment and how those same techniques can be applied to a Hyper-V [...]
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It’s nearly Xmas now, and it’s time to look back and review all the things happend in the year 2009 related with open source world. According to the blog of EOS Direcctory, there are some clear trends and patterns that can be highlighted: Govenmental push and push back In the year 2009, US government pushing [...]
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下面的方法是使用命令的方法。手工关闭 NetBackup Policy Execution Manager 服务也可以收到同样的效果，如果不喜欢在下一次系统重启时，登录后看到许多策略自动发起，可以在重启前将这个服务器设置为手动，需要时再设置回来。 How to prevent NetBackup 6.x from adding more jobs to the schedule and to temporarily suspend scheduling Details: Overview: This document explains how to stop services and temporarily suspend scheduling in NetBackup 6.x, using the nbpemreq command. For earlier versions of NetBackup, refer to the Related Documents [...]
RVTools is a greate tool I used often in my vSphere virtualization management life. Because of the backup method we implemented is VCB, so check out the snapshot of a VM becomes very important indeed, and this is the main reason I use RVTools for. The most recent verion of RVTools is 2.7.3, you can [...]
比如 Load Balance、Fault Tolerance 等选项？ 个人理解： HP 自带的工具，可以实现将多块网卡绑定为一个 Team，多块网卡可以是同时连接到一个交换机上，也可以实现分别连接到不同的交换机上。但是，从 Server 本身的角度来说，所谓的 Load Balance 只能是从发送的角度来说，即只能是 Transmit 的 Load Balance，而不能实现 Receive 的 Load Balance。即服务器只能控制其发送的数据从多块网卡走，但不能实现对接收的数据具体是从哪块网卡进来。 如果要实现对接收的数据的 Load Balance，只能是从其上联的交换机方面来实现，而且必须是多块网卡连接到同一个上联交换机，而不能是连接到多个上联交换机，如果是多个交换机，则只能实现 Fault Tolerance，即只能实现多块网卡，有一个失去连接时，保持网络连接，而不能实现 load Balance 功能，即不能同时从多块网卡进来。