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VMware vCenter Cookbook by Konstantin Kuminsky

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Controlling datastore space utilization

Two approaches can be taken to manage datastore space usage and make sure that there is always enough free space for VMs to run: vCenter space usage alarms and the Storage Distributed Resource Scheduler (SDRS) feature.

SDRS has been described in the Balancing storage utilization recipe in Chapter 5, Optimizing Resource Usage. It is a more advanced approach, which allows completely automating VM migrations. At the same time, this feature requires the Enterprise Plus license, which may not be needed for all environments.

A more simple approach is vCenter alarms. vCenter has default alarm definitions related to datastore space usage. Configured with email notifications, they allow administrators to react proactively ...

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