Veeam: ‘Failed to open disk for read’
KB ID 0001577 Problem EVERY VMware Job in Veeam Backup and Recovery failed with the following error, (for every Guest VM); Processing SERVER-NAME Error: Failed to open VDDK disk [[DATASTORE-NAME] SERVER-NAME/SERVER-NAME.vmdk] ( is read-only mode – [true] ) Logon attempt with parameters [VC/ESX: [ESXi-SERVER-NAME.DOMAIN-NAME.COM];Port: 443;Login: [administrator@.vsphere.local];VMX Spec: [moref=vm-231];Snapshot mor:...
vSphere ESX: Replace / Update the VMware Tools ISO
KB ID 0001566 Problem On Experts Exchange this morning someone asked about how to upgrade the VMware Tools as a result of a security advisory that advocated updating Windows VMware Tools to version 10.3 So here’s how to replace / upgrade the VMware Tools distribution ISOs, that live inside ESX. Solution Firstly, you need to download the tools! It’s easier if you simply get them in .zip format. Download and extract them,...
Upgrading vSphere ESXi Hosts (Including HP and Dell)
KB ID 0001343 Problem Before you think about upgrading your hosts, you should upgrade your vCenter, Upgrade vSphere vCenter Appliance Assuming that’s all done, your task now is to upgrade your hosts, if you have a vanilla VMware ESXi version installed. You COULD simply SSH into the host, and execute the following commands; esxcli network firewall ruleset set -e true -r httpClient esxcli software profile install -p...
Windows RDP: ‘An authentication error has occurred’
KB ID 0001433 Problem When attempting to RDP to a remote machine; An authentication error has occurred. The function requested is not supported Remote computer: {name} This could be due to CredSSP encryption oracle remediation. Or you may just see; An authentication error has occurred. The function requested is not supported Remote computer: {name} Solution This is happening after you have a applied a windows security update it...
VMware Fusion: Windows 10 ‘Lost’ Mapped Drive to the Host
KB ID 0001394 Problem My Windows 10 VM decided it was going to do a major update last night, so I let it get on with it. However today I can no longer access the ‘shared’ drive that it had back to the host (my MacBook). Solution I’m pretty sure this is the second time this has happened, so after berating myself for not documenting the fix last time, this is the fix. Run Regedit (Windows Key+R > regedit {Enter})...