Category: vSphere
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Adding Certificate to VMware vCenter 8.0U3
Step 1 Backup vCenter Step 2 Snapshot vCenter The certificate authority i was using was Windows Server 2022 I’d used this article to create a template, Remoted onto the certificate server: https://knowledge.broadcom.com/external/article?articleNumber=315271 Creating a new template for vSphere to use for VMCA as a Subordinate CA Note: If you have an encryption level higher than…
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vCenter Appliance vCenter restore failed
When you’ve been backing up your vCenter Server Appliance via the built in backup feature in the admin UI, then come to initiate a restore to new vCenter server. Make sure it’s the correct version, selected the same size (medium) and then ended up with a bunch of failures. The errors weren’t very helpful to…
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Performing a Reconfigure for vSphere HA operation on a primary
When you perform a Reconfigure for vSphere HA operation on the primary node in an HA cluster, an unexpected virtual machine failover may occur for the virtual machines running on that primary node. This is caused by a too short default monitor period for the primary host to become secondary. In the Details tab you…
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Error The machine SSL certificate in the VMware Endpoint Certificate Store (VECS) does not correspond with the service registration in the VMware Directory Service (vmdir) KB 2121701
A vCenter Single Sign-On endpoint certificate validation error has occurred. Resolution Ensure that the endpoint service registrations in vmdir match their corresponding machine SSL certificates in VECS. For more information, see Knowledge Base article KB 2121701. I could not find the file to fix the issue, however eventually did find the file however not on…
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Error Operation Failed, Leave Windows Domain
Error Operation Failed, failed to leave windows domain:
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Certificate Status vCenter Alarm
Just a quick post to give details on how to fixed the Certificate Status alarm in vCenter. Error Certificate Status in vCenter. This was the VMware article used in the end: https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.security.doc/GUID-80C30209-028D-4F92-9551-CDB6B25A8403.html Started off by running this command: One of the commands above will give you a clue what certificate has expired, then list details…
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vCenter 7 /storage/core and /storage/log full 100%
Had an issue where the following appear to occur in vCenter: vCenter Server /storage/core filling up with core.in:imfile.XXXX when configuring vCenter syslog server (81327) (vmware.com) This is a collection of the commands i’d used to fix this problem this problem:
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Reset the vCenter Server Appliance root password
This post will be handy for those who can’t rely on their memory. AKA Me! Resetting appliance root password is as simple. Note that you need to make a snapshot or backup of your VM. Important, do not ignore this step! as i do sometimes. If something goes wrong, you’ll always have a copy of…
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Change the default Multipathing selection ESXi, From Most Recently used to Round Robin
How to change the default path selection policy from the default of Most Recently used to Round Robin: SSH to each host in the cluster and run the following command: From this command get the Vendor and Model of the storage highlighted below: The run a command like my example below, replacing the vendor -V…
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ESXi vmkping command
This is a post about using the VMKping command on ESXi, something that each time i’m using it i have to double check i have the command correct. (-s & -d are key for me) Some examples (1) Basic ping command: vmkping x.x.x.x (2) Ping command out of a certain vmk interface: vmkping -I vmk1…