While working in vSphere our VDI vCenter cluster fills up the “Recent Tasks” pane with hundreds of “Recompute Virtual Disk Digest” tasks, they refresh every minute or so and dump another 40 or so tasks into the pane, making it so it’s very difficult to see the status of other tasks that we’re wanting to watch. When creating our VDI pools we set them to use Host caching, however we never put in a “Blackout” time frame, the idea of which is to only do the recompute during off hours so the system will focus on the VDIs more. This took a bit of searching as there weren’t a large number of people having this same issue. I finally found a site that gave me a close enough answer. If you’re having the problem, just follow this short guide to make sure there are Blackout times set up in your VDI pools.

1. Navigate to View Administrator webpage
2. Go to one of the VDI pools
3. Edit the settings of the pool.
4. Choose the Advanced Storage Tab
5. Choose Add… at the bottom and choose a blackout time, outside of normal business hours.