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vSphere High Performance Essentials by Christian Stankowic

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Generic storage tips

In this section, we will focus on some generic storage tips that should be considered when creating or customizing VMs.

SCSI controller types

When configuring virtual disks, we can choose among the various controller types for particular use cases. Keeping high performance in mind, there are some aspects that should be considered. Refer to the following table for a comparison of the available controllers:

Adapter

Requirements and OS support

Notes

PVSCSI (VMware Paravirtual SCSI)

vHW7+

Windows 2003+

Linux 2.6.26+ (older 2.6.x versions cannot boot from PVSCSI disks)

Highest I/O throughput at lowest host CPU usage; should be selected for high performance I/O workloads. Not supported with Microsoft cluster setups. The controller ...

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