A systems administrator is creating a VM and wants to ensure disk space is not allocated to the VM until it is needed.
Which of the following techniques should the administrator use to ensure?
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A. B. C. D.B.
The technique that the systems administrator should use to ensure that disk space is not allocated to the VM until it is needed is called "Thin Provisioning."
Thin provisioning is a storage allocation technique that allows administrators to allocate storage capacity to virtual machines or applications without allocating the physical storage upfront. Instead, the storage is dynamically allocated as it is needed. This approach helps to optimize storage utilization by reducing the amount of unused storage capacity.
Here's how thin provisioning works: When a VM is created, the administrator specifies the maximum amount of storage the VM will need. However, only a small amount of physical storage is initially allocated to the VM. As the VM uses more storage, the physical storage allocation grows automatically, up to the maximum amount specified by the administrator.
For example, if an administrator creates a VM with a maximum storage capacity of 100 GB, but the VM only uses 20 GB initially, thin provisioning will allocate only 20 GB of physical storage. As the VM uses more storage, thin provisioning will automatically allocate more physical storage, up to the maximum of 100 GB.
Thin provisioning is an important feature in virtualized environments, as it allows administrators to maximize the use of their storage resources while minimizing the amount of unused storage capacity. Additionally, thin provisioning can help reduce costs by postponing the need to purchase additional storage until it is actually needed.
Deduplication, software-defined storage, and iSCSI storage are all related to storage management, but they are not the best option for ensuring that disk space is not allocated to a VM until it is needed. Deduplication is the process of identifying and removing duplicate data from storage systems, software-defined storage refers to storage that is managed and provisioned by software rather than hardware, and iSCSI storage is a storage networking technology that allows block-level storage to be accessed over an IP network.