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Dell PowerStore Virtualization Infrastructure Guide

Virtual Volumes overview

Virtual Volumes (vVols) are storage objects that are provisioned automatically on a storage container and store VM data.

vVol provisioning

Different management actions generate different vVols that are associated with a VM.

Table 1. Types of vVolsvVols types
vVol Description
Data vVol A data virtual volume corresponds directly to each virtual disk .vmdk file.
Config vVol A configuration virtual volume represents a small directory that contains metadata files for a virtual machine.
Memory vVol A memory virtual volume that holds the contents of virtual machine memory for a snapshot.
Swap vVol A swap virtual volume is created when a VM is first powered on and holds copies of VM memory pages that cannot be retained in memory.

On the PowerStore cluster, each vVol provisioned in vCenter Server is visible as a vVol in PowerStore Manager. For more information, see Monitoring and managing vVols.

Protocol Endpoints and vVols

A Protocol Endpoint is an internal object in storage systems and appliances that is required for working with vVols.

A PowerStore cluster can manage vVols without a Protocol Endpoint, but the ESXi host cannot access the vVols. To gain access, ESXi hosts communicate with vVols through a Protocol Endpoint. The Protocol Endpoint serves as a logical I/O proxy that enables the ESXi host to establish data paths to vVols and their associated VMs.

PowerStore clusters automatically create and provision Protocol Endpoints when adding an ESXi host.


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