Faking vCenter alarms

Larger environments tend to integrate their monitoring and ticketing systems. Some also add automated workflows based on alarms. The problem when setting up these workflows is how do you test the workflow is triggered based on specific alarms?

Maximum Disks Per SCSI Controller is NOT 15

Pop Quiz Q: What’s the maximum number of disks per SCSI Controller? A: It depends.. On your VCP exam, you would have said 15. Correct. Although if you want to clone or snapshot and quiesce a VM, the maximum is 7 disks per SCSI controller.

Web Client Sucks – Use VM Remote Console (VMRC)

Lets face it, there’s lots of things the web client sucks at. Using a console window in the browser is one of them. This bar at the top of the console window just takes up space.

vSphere Client Storage Views tab not showing any infomation

The storage views tab in the vSphere client disappeared, and vCenter System Services displayed some of the following errors: unable to retrieve health data from https://localhost:443/vsm/health.

Constant Alarm ‘Network Uplink Redundancy Lost’

It’s amazing how much is going on when you dig through logs. On this occasion I was looking at “tasks & events” of a host and noticed a lot of network errors.

Force mount missing datastores

By accident while in Cluster Settings / Datastore Heartbeating, I noticed a datastore wasn’t available of one of the hosts. Trying to mount it from the vSphere client failed with a popup: