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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Storage Optimization and Troubleshooting | 25% | - Troubleshoot common storage issues in VMware Cloud Foundation - Monitor and optimize storage performance and capacity - Perform health checks and implement remediation |
| Topic 2: Integration and Automation | 20% | - Integrate storage components with other VMware Cloud Foundation services - Automate storage provisioning and management tasks - Use APIs and command-line tools for storage management |
| Topic 3: Storage Architecture and Design | 25% | - Plan for storage capacity, performance, and availability requirements - Integrate external storage arrays with VMware Cloud Foundation - Design vSAN storage solutions for VMware Cloud Foundation |
| Topic 4: Storage Configuration and Management | 30% | - Implement and manage storage policies - Configure and manage vSAN in a VMware Cloud Foundation environment - Manage data services (deduplication, compression, encryption) |
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22. Frage
An administrator is tasked with deploying a vSAN ESA Stretched Cluster for a VMware Cloud Foundation (VCF) workload domain. The stretched cluster must meet the following requirements:
* Ensure the cluster supports a storage policy with a secondary level of resilience of FTT=2 using RAID-6 erasure coding.
* Allow vSAN to regain its prescribed level of resilience in the event of a sustained host outage.
What is the minimum number of hosts required in each availability zone?
Antwort: D
Begründung:
Seven hosts per availability zone is required for this design. In a vSAN ESA stretched cluster, data components are distributed across two data sites, while a witness site provides quorum. The first requirement is a secondary level of resilience of FTT=2 using RAID-6 erasure coding. RAID-6 requires enough fault domains to place data and parity components while tolerating two failures. The second requirement is more restrictive: vSAN must be able to regain its prescribed level of resilience after a sustained host outage. This means the site must have enough remaining placement capacity to rebuild components and return objects to policy compliance after a host is lost. A six-host site can satisfy the RAID-6 placement minimum, but it does not provide the additional host needed to rebuild cleanly after a sustained host outage. Therefore, the design requires seven hosts in each availability zone. This produces fourteen data hosts across the stretched cluster, plus the witness. Reference topics: vSAN ESA Stretched Cluster Design, Secondary Level of Resilience, RAID-6 Erasure Coding, Availability Zone Host Count.
23. Frage
A VCF Architect is designing a site disaster recovery strategy for a retail client operating a vSAN Stretched Cluster.
The client's network team has imposed strict limitations on inter-site traffic, noting that the Inter- Site Link (ISL) occasionally drops packets under heavy load. The storage policy is configured with
"Dual Site Mirroring" and "Secondary FTT=1 (RAID-1)".
The architect is concerned about how a network partition (ISL failure) interacts with this storage policy regarding object accessibility and capacity planning.
Which of the following statements accurately describe the interaction between the network partition mechanics and the storage policy constraints? (Select all that apply.)
Antwort: B,C,D
24. Frage
The Windows team is planning to deploy a Windows Server Failover Cluster. This requires a disk shared between all members of the cluster.
Which two options are available to fulfill this requirement on a vSAN ESA cluster? (Choose two.)
Antwort: D,E
Begründung:
Windows Server Failover Cluster shared disks require coordinated access to shared block storage.
vSAN supports Windows Server Failover Clusters by providing SCSI-3 Persistent Reservation support at the virtual disk level, which allows cluster nodes to arbitrate access to a shared disk resource. One supported approach is to use the vSAN iSCSI Target Service, which presents vSAN-backed LUNs to initiators and can be used for clustered workloads that require shared block access. Another supported approach is to configure a shared virtual disk using a VMware Paravirtual SCSI controller with physical bus sharing. Physical bus sharing allows multiple VMs to access the same shared virtual disk in a WSFC configuration where supported. Raw Device Mapping is not the vSAN ESA-native solution for this requirement. NFS v4.1 is a file datastore protocol, not a WSFC shared block disk mechanism.
"LSI SCSI controller per disk" does not satisfy the required shared-disk bus sharing configuration.
Reference topics: vSAN Support for Windows Server Failover Clusters, SCSI-3 Persistent Reservations, vSAN iSCSI Target Service, Shared VMDK Configuration.
25. Frage
A Cloud Administrator is integrating a third-party Backup solution with a vVols-backed VCF cluster. The goal is to perform crash-consistent backups with minimal stun time for the production VMs. The storage team created an advanced array-side feature definition that is pushed to vCenter via the VASA Provider.
```
# SPBM Policy: "vVol-Backup-Optimized"
capabilities:
vvol:
array.snapshots: true
array.fast_clone: true
ruleSet:
IOPS_Limit: 50000
```
How do vVols, VASA, and SPBM integrate to fulfill this backup requirement during the daily backup window? (Select all that apply.)
Antwort: A,B,D
26. Frage
Which metric is most critical for storage performance troubleshooting?
Antwort: A
27. Frage
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