Update manager error: hosts could not enter maintenance mode

I started another round of the ESXi patching recently (because of this), when I experienced an unpleasant issue. Some of my clusters failed to remediate using update manager. Hosts failed to enter maintenance mode with the following message: Current progress of remediation: 0 hosts completed successfully, 0 hosts completed with… Continue reading

Security issue after updating to vCenter 6.0

I did a crazy thing last week, I decided to update our vCenter appliance (VCSA) from version 5.5U3a to version 6.0 Update1 3040890. I was surprised how flawlessly it went. It was finished in couple of hours, “almost” everything was working as expected, so big success đŸ™‚ Until users started… Continue reading

VMs crashing after snapshot consolidation in ESXi 5.5 Update 3

Those of you who follow social media or simply have ESXi 5.5 Update 3 and use snapshots, are already aware of the problem described in VMware KB 2133118 . After Snapshot consolidation task, virtual machines running on VMware ESXi 5.5 Update 3 hosts will crash. These are the type of errors… Continue reading