This post is written by Dell Operating systems Engg.

This paper provides an overview of VMware vSphere Quick Boot feature. It also talks about Hardware and software considerations for Quick Boot feature on Dell EMC PowerEdge Platforms. Quick Boot is a new type of “soft” reboot mechanism introduced in vSphere 6.7. Unlike a regular host reboot operation (warm or cold), Quick Boot does not involve going through the actual hardware reboot process. When you initiate a Quick Boot, ESXi restarts in a way similar to normal reboot operation but the hardware does not go through the normal process of reboot operations such as POST, firmware load, re-initialization of hardware resources, reload ACPI/SMBIOS tables etc... 

This feature helps to speed up server management workflows which do not require a hardware reboot. For example, applying an ESXi security patch or upgrading the ESXi hypervisor will most likely not require you to have the host/hardware rebooted. In this paper we discuss Dell EMC PowerEdge server models supported for Quick Boot feature, what the typical time saving is, and what configurations are required in order to take advantage of Quick Boot in Dell EMC PowerEdge Servers.