Category: ESXi

Posted in ESXi

Cannot copy files to host data.host. Check the management service status, network connectivity with vCenter and disk space on the host.

Oh boy, oh boy, what a bumpy ride I had with upgrading my vSphere environment form 6.5 version to 7.0.2. First I had issue with…

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Posted in ESXi

After upgrading to ESXI 7.0 update 2 , the reboot process is Extremely slow boot

On one of my clusters (with over 30 hosts) it took literally six and half hours for one host to get back online. Furthermore they…

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Posted in ESXi

What to do if your baseline is incompatible?

During ESXi upgrade process on one of the cluster I saw that baseline which works fine everywhere else is incompatible! What would be your first…

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Posted in ESXi VxRail

VxRail – Mellanox driver version 14.28.45.12 compatibility issue with Finisar SFP

I have VxRail cluster version 7.0.100-26719865 and recommended version is 7.0.202-27047874. However once I run update it got corrupted as node 1 never boot up…

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Posted in ESXi

ESXi ESXCLI Firewall Commands

You can use the ESXi Shell or ESXCLI commands to configure ESXi at the command line to automate a firewall configuration. NOTE: You can only manage predefined ports. To…

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DO NOT clone ESXi boot devices!

Some of admins are keen to clone ESXi boot device in order to speed up the deployment. Please remember that this workflow is not at…

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Posted in ESXi

How to Change the IP Address of an ESXi Host – vmk0 management network – NO DOWNTIME

NOTE: Although host should have connectivity via second NIC, should something happen to that NIC one will lose host and VMs, so proceed with caution….

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How to check if server is Virtual or Physical

It is very simple task. SSH to server and issue this command: If you see this output: Vendor: Dell Inc. It is Physical server. If…

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