To study for VMware HCI Master Specialist Exam | vSAN认证考试题目学习
85. An administrator is setting up a clustered application and is concerned about the additional space requirements stemming from traditional vSAN storage and Failure to Tolerate(FTT) storage policies.
The administrator would like to leverage a vSAN service for this clustered application that would not consume more storage than is actually required.
Which vSAN service should be used to meet this goal?
- A.vSAN File services
- B.vSAN iSCSI
- C.vSAN Compression Only
- D.VMware vSAN Direct
Explaination:
To meet the goal of not consuming more storage than is actually required while addressing concerns about the additional space requirements from traditional vSAN storage and Failure to Tolerate (FTT) storage policies, the administrator should consider using:
D. VMware vSAN Direct
Here’s why VMware vSAN Direct is the best choice:
- VMware vSAN Direct is designed to provide applications with direct access to storage devices, bypassing the typical storage space overheads associated with vSAN’s distributed architecture and FTT policies. This service is particularly useful for applications that manage their own availability and do not require the additional resiliency layers provided by vSAN’s default storage policies. By allowing direct storage device access, vSAN Direct reduces the storage overhead, making it an ideal choice for clustered applications that require efficient storage usage without sacrificing performance.
- 一名管理员正在设置一个集群应用程序，并且对源自传统vSAN存储和容错容忍(FTT)存储策略的额外空间需求感到担忧。
管理员希望利用一项vSAN服务来支持这个集群应用程序，该服务不会消耗比实际所需更多的存储空间。
应该使用哪种vSAN服务来实现这个目标？
- A. vSAN文件服务
- B. vSAN iSCSI
- C. 仅vSAN压缩
- D. VMware vSAN Direct
解释：
为了实现不消耗比实际所需更多存储空间的目标，同时解决传统vSAN存储和容错容忍(FTT)存储策略带来的额外空间需求问题，管理员应该考虑使用：
D. VMware vSAN Direct
这是为什么VMware vSAN Direct是最佳选择的原因：
VMware vSAN Direct旨在为应用程序提供对存储设备的直接访问，绕过与vSAN的分布式架构和FTT策略相关的典型存储空间开销。这项服务特别适用于管理自己可用性的应用程序，并且不需要vSAN默认存储策略提供的额外弹性层。通过允许直接访问存储设备，vSAN Direct减少了存储开销，使其成为需要高效存储使用而不牺牲性能的集群应用程序的理想选择。
