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ESX(i) Host Adminsitration resources

How to properly clone a Nested ESXi VM?

I often hear from users that they would like to be able to just clone from an existing Nested ESXi VM that has already been configured and just create additional Nested ESXi VM instances from that. For me personally, I do not have a use case for this sinc ...
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ESXi Runs in Memory - Boot Options

I hope the title of this post doesn’t surprise you! This is sometimes a forgotten design of ESXi when choosing your boot options. I have been increasingly talking with VMware admins that are deciding to mirror their local drives for ESXi. This seems to be ...
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How cool is that!? Using VMware Workstation to manage your ESXi hosts (including Free ESXi) & VMs

To be completely honest, I have not played with VMware Workstation in quite awhile as my day-to-day job primarily revolves around our Enterprise suite of products. In a recent meeting that I was in, I picked up on some interesting tidbits about the latest ...
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vmnic/vmhba sequence changed in ESXi 5.5

Looks like VMware has made a small but momentous change to the vmnic/vmhba numbering with the release of vSphere ESXi 5.5. In previous versions, the vmnic numbering was always determined by the the PCI ID. After adding a new ESXi Host to a Clust ...
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Nested ESXi 5.5 – Configure Virtual Flash?

VirtuallyGhetto has a great post on configuring VSAN on a nested ESXi box by getting a VMDK to report itself as an SSD disk.  However this doesn’t seem to work for Virtual Flash.

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Paper: VMware ESX Memory Resource Management: Transparent Page Sharing

VMware recently released a new whitepaper on memory management in VMware ESX and transparent page sharing (TPS) in particular. ESX uses several techniques to utilize the physical memory such that a maximum number of virtual machines can run on a host wit ...
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Back To Basics: Managing VMware ESXi 5.5 Direct User Interface (DCUI) (mikelaverick.com)

Well, it’s time for another post in my all-new “back to basics” series. That’s my term for wiping down my lab environment and deploying vSphere5.5 – and trying to reacquaint myself with all that vSphere knowledge that was once at my finger tips. This time ...
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Removing orphaned hosts from a Cisco Nexus 1000V (2000203)

You have a host in a Cisco Nexus 1000V that you cannot remove, and the host does not have any uplinks associated with it. Attempting to remove a host from a Cisco Nexus 1000V fails.

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Locally restoring an ESXi configuration from state.tgz backup (2043048)

This article provides steps to restore the locally saved ESXi configuration from the state.tgz backup.

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Recover ESXi Root Password using AD Authentication (Simon Eady)

Losing a root password isn’t something that happens often, but when it does it’s normally a really irritating time. I have to rotate the password of all hosts once a month for compliance, but sometimes a host drops out of the loop and the root password ge ...
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ESXi 5.5 free and direct host management gotchas and workarounds

There has been a lot of talk in the VMware Communities regarding a shortcoming in management techniques for users of the free version of ESXi 5.5, as well as users trying to manage an ESXi host directly in a vSphere environment. The problem is that the t ...
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Enabling serial-line logging for ESXi 5.x (1033888)

This article provides steps to enable serial-line logging for an ESXi 5.0 and ESXi 5.1 host. It is sometimes helpful to have logs captured independent of disk or network connectivity when troubleshooting issues. Enabling serial logging sends all VMkernel ...
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VTGURU VMware vSphere 5.5 ESXi Dump Collector Configuring using ESXCLI - YouTube 6:17

VTGURU VMware vSphere 5.5 ESXi Dump Collector Configuring using ESXCLI

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Additional steps required to completely disable VSAN on ESXi host

Something that I had noticed while working with VSAN in my lab is that when you disable VSAN on your vSphere Cluster, the disks that were used for VSAN in each of the ESXi hosts were no longer available for use afterwards. If you want to use one of the di ...
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vSphere Security: Understanding ESXi 5.x Lockdown Mode (Simon Eady)

This is the first article in a series of vSphere Security articles that I have planned. The majority of this article is based on vSphere/ESXi 5.1, though I will include any 5.5 information that I find relevant. I think lockdown mode is a feature that is ...
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How to clear the ARP cache on ESXi using new ESXCLI 5.5

The ability to clear the ARP cache/table for an ESXi host is feature that has been requested from customers from time to time and usually for diagnosing network related issues. In previous releases, this was not something you could easily do and it was ni ...
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Configuring default VMkernel gateway to a TCP/IP stack (2059743)

You might need to change the default VMkernel gatway of a TCP/IP stack.

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NIC teaming in ESXi and ESX (1004088) Video 1:51

This article provides information on configuring NIC teaming. A NIC team can share the load of traffic between physical and virtual networks among some or all of its members, as well as provide passive failover in the event of a hardware failure or netwo ...
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