Wu's Blog

Tag: HA

  • ESXi 5.1 shows 0 value for CPU/memory in vcenter

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    It’s been a month, i was busy to make our environment more stable, a lot of troubleshooting, webex session and discussing. Few days ago I noticed random VMs kept vMotion constantly. Some VMs got strange situation, show orphan, invalid or unknown status, but still online. I couldn’t find any evidence why the VMs went to…

  • HA for DMZ ESXi 5.1 cluster

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    Virtualization becomes popular than never this year, I see many company is transforming internal infrastructure into virtual platform. HA is key feature of vSphere ESXi 5.1, you have to consider this part on every design, especially DMZ virtual machine. Most DMZ ESXi cluster has restricted networking policy, even ICMP maybe not allowed. As you may…

  • vCenter Server Heartbeat 5.6 – Installation

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    I have to say you’ll not able to get what you anticipating if you follow VMware document. After referred few blogs and videos, I finally deployed the production in HA and DR mode both, it consumed a lot of time since I had to clone the VM from US to India over WAN. It’s pain,…

  • The number of heartbeat datastores for host is 0, which is less than required: 2

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    Today I see this error message on one ESXi5.0 host: The number of heartbeat datastores for host is 0, which is less than required: 2 No any VM is running on the host by DRS or HA, VMware KB gives a solution but too complicate. Re-configure HA can fixes the problem. Right click the host…