Which components does VUM integrate with to prevent downtime during updates?

The integration of VMware Update Manager (VUM) with features such as Distributed Resource Scheduler (DRS), Distributed Power Management (DPM), High Availability (HA), and Fault Tolerance (FT) is essential for minimizing downtime during updates.

DRS plays a critical role in automatically balancing workloads across hosts in a cluster. When updates are applied, DRS can migrate virtual machines to other hosts that are not undergoing maintenance, ensuring that services remain available to users. DPM complements this by intelligently managing power consumption and can put hosts into sleep mode when they are not needed, while also bringing them back online as required during maintenance processes.

HA provides another layer of availability; should a host fail or require updates, HA can automatically restart virtual machines on other available hosts in the cluster, maintaining application availability with minimal disruption. FT ensures that virtual machines are continuously available without downtime for critical applications, as it creates a secondary virtual machine that runs in lockstep with the primary VM, allowing for failover without user impact.

In summary, VUM's interaction with DRS, DPM, HA, and FT creates a robust environment that prevents downtime during updates by leveraging automated resource management and failover techniques, ensuring continuous availability of virtual machines and applications.