Exam 1V0-21.20 topic 1 question 19 discussion

Also, from ChatGPT: No, VMFS (Virtual Machine File System) is not considered an object-based storage system. VMFS is a file system designed by VMware for storing virtual machine files on block-based storage devices such as Fibre Channel, iSCSI, or Fibre Channel over Ethernet (FCoE). It provides a file system abstraction that allows multiple virtual machines to store their files on the same shared storage while providing features like concurrent access, locking mechanisms, and file-level access controls.

I asked ChatGPT: No, Virtual Volumes (vVols) is not an object-based storage technology. vVols is a storage management framework introduced by VMware that provides a more granular and policy-driven approach to storage in virtualized environments. It's designed to improve the integration between storage arrays and VMware vSphere. vVols works with traditional block or file-based storage systems, and it allows the virtual disk (VMDK) of a virtual machine to be treated as a separate logical volume on the storage array. This enables more flexibility in managing storage at the virtual machine level, rather than dealing with LUNs or volumes at the datastore level.

Neither of the presented solutions are object-based storage. This would be vSAN... But I would still go with VMFS in this case.

Object-based storage refers to a storage architecture where data is stored and retrieved via unique identifiers, known as objects, which contain both the data itself and metadata. Among the options provided: D. vVols (Virtual Volumes) vVols are an example of object-based storage in the context of VMware vSphere. Virtual Volumes are a storage paradigm that provides a more granular and flexible approach to storage management for virtual machines. They allow for per-VM storage management at the virtual disk level and leverage storage policies defined on a per-VM basis. This enables better alignment of storage services with the requirements of individual virtual machines.

vVols is object-based. VMFS is not. It's that simple, really.

Why is vSAN not an option?

vVols are object based storage. VMFS is file based storage. So the answer is 100% D

D. vVols vVols (Virtual Volumes) is the object-based storage that can be used to store virtual machines. vVols is a storage management framework introduced by VMware that allows storage arrays to expose individual virtual machine disks as separate storage objects. This provides more granular control and flexibility for managing virtual machine storage in a virtualized environment. Unlike traditional storage solutions like NFS (A Network File System) or VMFS (Virtual Machine File System), vVols enables more efficient and streamlined storage management for virtual machines.

Option D, vVols (Virtual Volumes), is a storage technology introduced by VMware that provides a more granular and VM-centric approach to storage management. vVols enable virtual machines to be treated as individual entities with their own storage policies. However, vVols themselves are not object-based storage but rather a framework for managing storage at the virtual machine level. Therefore, the correct option is B. VMFS, as it is the object-based storage specifically designed for storing virtual machines in VMware environments.

vVols are "object-based storage". VMFS volumes are placed on "object-based storage" devices or in this case virtual devices to keep it simple.

VMFS is correct. People are confused with vVols, it is not a type of storage.

VMFS stores the structure of the virtual machine (configuration and data files - vmdk) and vVol delivers disk to the virtual machine as if it were a vmdk but uses SAN/NFS technology

Virtual volumes are stored natively inside a storage system that is connected to your ESXi hosts through Ethernet or SAN. They are exported as objects by a compliant storage system and are managed entirely by hardware on the storage side. Typically, a unique GUID identifies a virtual volume. Virtual volumes are not preprovisioned, but created automatically when you perform virtual machine management operations. These operations include a VM creation, cloning, and snapshotting. ESXi and vCenter Server associate one or more virtual volumes to a virtual machine.

B is the Answer, as VMFS is deeply on block storage devices: Virtual Machine File System (VMFS) is a datastore type that is deployed on block storage devices, and it is a special high-performance file system format that is optimized for storing virtual machines. https://geekflare.com/vsphere-storage-datastore-types/

One of the object-based storage options that can be used to store virtual machines is VMFS (Option B). VMFS stands for Virtual Machine File System and is a high-performance file system developed by VMware specifically for use with virtual machines. VMFS is used to store virtual machine disk files (VMDKs), virtual machine configuration files, and snapshots, among other things. It allows multiple virtual machines to access the same storage concurrently, and provides features such as storage reservation, storage locking, and storage mapping, to ensure that virtual machines have exclusive access to their storage. This makes VMFS an ideal option for storing virtual machines and their associated files.

https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/virtualvolumes/vmw-vsphere-virtual-volumes-vvolvs-solution-overview.pdf

VMFS is block storage VMWare Virtual Volumes (VVOL) isn’t a type of storage, it’s a type of overlay that works with SAN or NAS storage types. When implemented, VVOL’s give you storage policy-based management as well as fine grained control of your storage.