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Objective 3.1 – Managing vSphere integration with physical storage
VMware vSphere supports different types of storage, including traditional and software-defined solutions. For the physical storage, the three main categories are the following:
- Direct attached storage (DAS): vSphere supports SCSI, SATA, SAS solutions, including (in vSphere 6.5), and also NVMe solutions.
- Network-attached storage (NAS): vSphere supports NFSv3 and (starting with vSphere 6.0) NFSv4. Note that Content Library also supports the SMB protocol, but is limited to this specific function.
- Storage area network (SAN): vSphere supports several FC, FCoE, and iSCSI solutions.
Each type of storage provides different capabilities and features:
Storage type Frontend protocols Datastore vSphere features
DAS SCSI, SATA, SAS, and so on VMFS VADP, RDM*, vSphere HA, and DRS**
SAN FC FC, FCoE VMFS
vVols VADP, RDM, vSphere HA and DRS, vSphere FT
SAN iSCSI iSCSI VMFS
vVols VADP, RDM, vSphere HA and DRS, vSphere FT
NAS NFS NFS
vVols VADP, vSphere HA and DRS, vSphere FT
Table 3.1
* For local storage, RDM can only be configured from command lines.
** For local storage, vSphere cluster functions can only be enabled with supported shared SAS products.
Objective 3.1 for VCP65-DCV and VCP6-DCV are quite similar just because there weren't big changes in those storage functions from vSphere 6.0 to vSphere 6.5. The NFS part is new, but it's also repeated in Objective 3.4.
For more information and details, see the vSphere 6.5 storage guide (https://docs.vmware.com/en/VMware-vSphere/6.5/vsphere-esxi-vcenter-server-652-storage-guide.pdf.pdf).