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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Storage Architecture and Design | 25% | - Integrate external storage arrays with VMware Cloud Foundation - Plan for storage capacity, performance, and availability requirements - Design vSAN storage solutions for VMware Cloud Foundation |
| Topic 2: Integration and Automation | 20% | - Automate storage provisioning and management tasks - Use APIs and command-line tools for storage management - Integrate storage components with other VMware Cloud Foundation services |
| Topic 3: Storage Optimization and Troubleshooting | 25% | - Monitor and optimize storage performance and capacity - Perform health checks and implement remediation - Troubleshoot common storage issues in VMware Cloud Foundation |
| Topic 4: Storage Configuration and Management | 30% | - Configure and manage vSAN in a VMware Cloud Foundation environment - Implement and manage storage policies - Manage data services (deduplication, compression, encryption) |
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問題 #22
Which component manages storage lifecycle in VMware Cloud Foundation?
答案：A
問題 #23
A CTO is evaluating the performance metrics of the new vSAN ESA clusters in VCF 9.0.
The traditional SAN storage array historically suffered from "RAID-5 Write Penalties" where backend disk IOPS significantly exceeded front-end application IOPS. The CTO analyzes the ESA log-structured metrics via the configuration YAML export.
```
# vSAN ESA Performance Matrix
DOM Frontend (VM) Writes: 10,000 IOPS (Random 4KB)
SPBM Policy: RAID-5 (4+1 Configuration)
LSOM Backend (Disk) Writes: 1,500 IOPS (Sequential 1MB)
```
How does vSAN ESA fundamentally eliminate the backend performance bottleneck associated with traditional Erasure Coding (RAID-5/6)? (Select all that apply.)
答案：B,D,E
問題 #24
A CTO is investigating a catastrophic outage. A TKG Worker Node containing several critical database First Class Disks (FCDs) suffered data corruption.
The node was running on a host experiencing high load, and standard VMDK backup routines (via VADP) were disabled to save CPU cycles. The storage team attempted to restore the FCDs using low- level API commands.
The engineer uses vim-cmd to inspect the FCD state:
```
[root@esx-08:~] vim-cmd vmsvc/get.tasklist
Task: ReconcileFCD_Task
Status: Failed
Error: "VStorageObjectNotFound"
[root@esx-08:~] vim-cmd vmsvc/device.diskaddexisting 20
/vmfs/volumes/vsan/fcd/88b1...
Error: "The disk object requires a CryptoKeyID which was not found in
the current KMS provider."
```
How do the concepts of FCD independence and vSAN Encryption interact to create this restoration failure? (Select all that apply.)
答案：A,B,E
問題 #25
An administrator has been tasked with making changes to a VMware Cloud Foundation (VCF) Workload Domain cluster that is configured with NFS for both Principal storage and Supplemental storage.
The cluster has the following configuration:
* There are 3 x ESX host servers.
* There are 3 x NFS Datastores allocated to host Virtual Machines workloads.
* There is a single NFS Datastore allocated for hosting ISO files.
The administrator has the following concerns with the existing configuration:
* Every time a new Virtual Machine is deployed to the Workload Domain, the administrator must choose which datastore should be used.
* When reviewing the Datastores in VCF Operations:
* One of the datastores has no Virtual Machines running in it.
* The other two datastores have an imbalance of Virtual Machines and this is causing resource contention. The administrator has the following requirements: * Virtual Machines must be placed automatically on the most appropriate datastore based on utilization. * Migration recommendations on Virtual Machine placement should be made when one datastore reaches 50% utilization. * Virtual Machines must only be migrated to another datastore after being approved by an administrator. What four actions must the administrator take to meet all of the requirements? (Choose four.)
答案：B,D,E,F
解題說明：
The administrator must create a datastore cluster from the three NFS datastores that are intended to host virtual machine workloads. The ISO datastore should not be included because datastore clusters should contain similar or interchangeable datastores used for the same purpose. All three NFS datastores must be available to each ESX host server so Storage DRS recommendations and VM placement are valid across the cluster. Storage DRS should be configured in Manual mode because the requirement states that migrations must occur only after administrator approval. Manual mode displays placement and migration recommendations but does not execute them automatically. The Storage DRS space threshold should be set to
50% so recommendations are generated when a datastore exceeds that utilization level. Setting the storage space utilization difference to 50% is not correct because that value controls the minimum difference between source and destination datastore utilization, not the trigger threshold itself. Fully Automated mode would violate the approval requirement by automatically applying migrations. Reference topics: Datastore Cluster Requirements, Storage DRS, Manual Automation Mode, Space Utilization Thresholds, NFS Datastores.
問題 #26
A customer attaches an external Fibre Channel (FC) VMFS datastore to a VMware Cloud Foundation (VCF) workload domain for backup staging. The administrator must confirm that the datastore is visible to all hosts, and that path and device health alarms will trigger should a fabric link or path fail.
Which action should the administrator take to verify this?
答案：C
解題說明：
The correct action is to verify the datastore, device paths, and multipathing state in vCenter. Fibre Channel VMFS storage depends on SAN fabric connectivity, HBAs, zoning, LUN masking, storage processors, path selection policies, and multipathing. vCenter provides the operational view needed to confirm whether the FC VMFS datastore is visible to every ESX host in the workload domain cluster. It also exposes storage device path status and multipath health so administrators can validate that redundant paths are active and alarms can trigger when a fabric link or path fails. esxcli vsan storage list is specific to vSAN devices and does not validate external FC VMFS paths. The proposed VCF SDK command is not the standard method for validating FC path and datastore visibility. vmkfstools -- inspectpaths is not the normal vSphere workflow for FC LUN health validation. For FC-backed VMFS, vCenter storage views provide the correct centralized validation point. Reference topics: Fibre Channel Storage Model, VMFS Datastore Connectivity, Multipathing, Path Health, vCenter Storage Monitoring.
問題 #27
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