Exam 1V0-21.20 topic 1 question 84 discussion

https://docs.vmware.com/en/VMware-vCloud-NFV-OpenStack-Edition/3.3/vmware-vcloud-nfv-openstack-edition-ra33/GUID-4EA2DA75-6FA4-44E1-BC0C-23D106345D08.html

D is the answer vSAN (Virtual SAN) It provides shared storage for vSphere clusters without relying on traditional external storage

Had it confirmed by a VMware official trainer on my VCP course. I asked the question and he said that the vVols would be available on external storage only and the vSAN would be available to internal storage, and that's the only difference. They both meet all the requirements apart from the 'external' part.

ChatGPT: One software-defined, object-based storage solution that provides shared storage for vSphere clusters without relying on traditional external storage is VMware vSAN (Virtual SAN). VMware vSAN is part of the VMware software-defined storage (SDS) stack and is designed to pool together local disk storage resources from multiple ESXi hosts to create a distributed, shared datastore.

The software-defined, object-based storage solution that provides shared storage for vSphere clusters without relying on traditional external storage is: D. vSAN (VMware vSphere Virtual SAN) vSAN is a software-defined storage solution integrated with VMware vSphere that aggregates local storage disks of ESXi hosts within a vSphere cluster to create a distributed shared datastore. It utilizes the local disks of each ESXi host in the cluster to create a pool of storage that is accessible and shared among the hosts, eliminating the need for dedicated external storage arrays. vSAN uses policies and redundancy mechanisms to ensure data resilience and high availability while offering shared storage capabilities for VMs within the vSphere cluster.

The software-defined, object-based storage solution that provides shared storage for vSphere clusters without using traditional external storage is D. vSAN. VMware vSAN (Virtual Storage Area Network) is a hyper-converged, software-defined storage solution that is tightly integrated with vSphere and provides shared storage by leveraging local storage resources from the ESXi hosts in a vSphere cluster. It eliminates the need for traditional external storage arrays by aggregating and abstracting local storage devices into a shared storage pool, which can be used for virtual machine storage. NFS, iSCSI, and vVOLs are different storage technologies or protocols but are not specifically designed to provide shared storage within a vSphere cluster without external storage like vSAN does. So It should be vSAN.

Changing my answer to B. It says "without using traditional external storage". Both vVols and vSAN are software-defined and object-based, however, a vSAN seems to be the more traditional approach. This link changed my mind from D to B. https://cloudian.com/guides/vmware-storage/vmware-storage

The answer is D. "Traditionally, data is stored as blocks and files within the data center. Block-based storage organizes data in structured fixed blocks that are easily indexed and searched. With file-based storage, data is often laid out in a hierarchy of files and folders. vSAN stores and manages data in the form of objects. Each vSAN object is composed of a set of components. The components are determined according to the specified virtual machine storage policy settings. One of the most important concepts in vSAN is the idea of storage objects and components.The webinar will look at the different object types and components contained in a vSAN datastore, the possible object and component states as well as the impact of storage policy-based management." https://learning.customerconnect.vmware.com/site/openlearn.do?dispatch=previewLesson&id=75c6cd02-da13-11e9-b1f7-0cc47a3505aa

vVols is software defined and object based

This one is tough; I will pick B for an answer, because vSAN is not a true object-storage.

Correct answer is D vSAN is softer defined and Object based storage. https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-planning.doc/GUID-1D8956A2-3F46-49C8-9231-38F3A9D09A0F.htmlhttps://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-planning.doc/GUID-ACC10393-47F6-4C5A-85FC-88051C1806A0.html https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-planning.doc/GUID-1D8956A2-3F46-49C8-9231-38F3A9D09A0F.html

vSANs, see link from canonlycontainletters1

The right option is vVOLs, it is software-defined, object based storage solution, not traditional iSCSI and vSAN are traditional.