Because there is always more storage space than RAM space, virtual memory increases the computer's capacity to do work. All modern CPUs have memory management units (MMUs) that support virtual memory.

Reduce writes to SSD to extend lifespan: disable hibernation, manage virtual memory, use another drive for intense applications. Keep SSD cool with heatsinks to prevent thermal shutdowns ...

The following sections provide details on available memory management techniques ... One way to limit the amount of virtual memory that SAS can use is to specify a value for the MEMSIZE= system option ...