Recently I received a request to disable any automated HA actions on specific VMs across our infrastructure. To some folks that might sound a bit crazy, but there was good reason: an outside vendor supports an application and wanted to be involved … [Continue reading] about VMware HA Restart Policies: PowerCLI
File upload failed: VMware Update Manager
I ran into a really annoying error recently while trying to upload a host upgrade to VMware Update Manager. The upload kept failing with the error message "Failed to login. Error was: A web exception has occured during file upload". (Yes, I … [Continue reading] about File upload failed: VMware Update Manager
Finding mismatched NFS datastore UUIDs: PowerCLI
I've run into an issue lately in my VMware environment that really frustrated me because I didn't understand why it was happening, and because there wasn't an obvious way of determining that it wouldn't happen again. The problem I'd been having was … [Continue reading] about Finding mismatched NFS datastore UUIDs: PowerCLI
Controlling VMware Update Manager patch staging: PowerCLI
As you may be aware, VMware Update Manager has functionality built-in that allows the VMware administrator to stage patches to hosts, for remediation at a later time. There are a number of downsides to the way this functionality is implemented in the … [Continue reading] about Controlling VMware Update Manager patch staging: PowerCLI
Automating VMware cluster remediation without DRS: PowerCLI
As you may be aware, VMware's Update Manager (VUM) does a great job of remediating vSphere hosts when they're in DRS-enabled clusters. You select the cluster you want to remediate, verify the correct baselines are attached, and click Remediate. VUM … [Continue reading] about Automating VMware cluster remediation without DRS: PowerCLI