Leveraging host flash

Virtual Flash enables the use of Solid State Disks (SSD) or PCIe-based flash storage in ESXi hosts in order to accelerate the performance of virtual machines by providing read caching and host swapping.

How to do it…

  1. Configure local SSDs or flash devices as Virtual Flash Resource.
  2. Configure vSphere Flash Read Cache (vFRC) for virtual machine disks.
  3. Allocate Virtual Flash capacity for the host swap cache.

How it works…

Configuring local SSDs for use as Virtual Flash Resource is done from ESXi host settings, the Virtual Flash Resource Management menu. Adding the capacity will display the flash device that is eligible to be used as Virtual Flash Resource, as shown in the following screenshot:

Flash devices selected as virtual flash ...

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