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Question 186 - D-ISM-FN-23 discussion

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Which statement is true regarding virtual provisioning?

A.
Shared and Thin LUNS can be expanded rapidly with only minor disruptions
Answers
A.
Shared and Thin LUNS can be expanded rapidly with only minor disruptions
B.
Multiple shared storage pools can be created while each pool must be allocated to a unique thin LUN
Answers
B.
Multiple shared storage pools can be created while each pool must be allocated to a unique thin LUN
C.
Virtual provisioning enables more efficient allocation of storage to compute systems
Answers
C.
Virtual provisioning enables more efficient allocation of storage to compute systems
D.
Virtual provisioning prevents issues that arise from oversubscription
Answers
D.
Virtual provisioning prevents issues that arise from oversubscription
Suggested answer: C

Explanation:

Virtual provisioning is a storage management technique that enables more efficient allocation of storage to compute systems. It allows storage administrators to create virtual storage resources that are presented to compute systems as if they were physical resources, even if the physical storage capacity does not exist. Virtual provisioning supports various types of virtual storage, including thin LUNs and thin clones. Thin LUNs enable shared and rapid expansion with only minor disruptions. Multiple shared storage pools can be created, and each pool can be allocated to multiple thin LUNs. However, virtual provisioning does not prevent issues that arise from oversubscription; it is important to monitor and manage capacity utilization to avoid performance degradation or service disruptions.

Reference: Section 2.5.1 Virtual Provisioning, page 107.

asked 16/09/2024
Alexander Voronetsky
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