A financial services company is designing a new 8-node vSAN 7.0 U3 cluster to host a mission-critical, low-latency trading application. The application vendor specifies that storage latency must remain consistently below 1ms. The architect has chosen all-flash NVMe devices for both the cache and capacity tiers. To ensure maximum performance and predictability, which vSAN storage controller configuration represents the best practice for this scenario?
An administrator is managing a 10-node vSAN cluster and needs to perform firmware updates on a single host's network adapters. To minimize impact on the cluster, the administrator places the host into maintenance mode using the 'Ensure accessibility' option. During the maintenance window, a second, unrelated host in the cluster experiences a sudden power supply failure and goes offline. What is the expected status of the VM objects that had components on both the host in maintenance and the failed host, assuming a standard FTT=1, RAID-1 policy?
A vSAN administrator is troubleshooting a performance complaint on a hybrid vSAN cluster. Using `vsantop` in the ESXi shell, they observe the following metrics for a specific disk group: `DGROUP-UUID (naa.xxx):` ` ReadCacheHitRate: 15%` ` WriteBufferFree%: 95%` ` ReadLatency: 3.5ms` ` WriteLatency: 0.8ms` Based on this output, what is the most likely cause of the performance issue?
An organization has two separate vSAN clusters in the same data center: a 10-node compute-heavy cluster running CPU-intensive analytics workloads and a new 6-node storage-heavy cluster with a large capacity. The analytics cluster is running low on storage. The architect wants to allow the analytics cluster to consume storage from the new storage-heavy cluster without migrating the VMs. Which two requirements must be met to enable this functionality using HCI Mesh? (Select TWO).
True or False: In a vSAN stretched cluster, the Witness traffic VMkernel port on the data-site hosts must be able to communicate with the vSAN traffic VMkernel port on the Witness Host.
**Case Study:** A regional healthcare provider, MedCloud Inc., is modernizing its infrastructure to support a new Electronic Health Record (EHR) system. They are deploying a new 12-node all-flash vSAN 7 cluster to host the EHR application's database and application VMs. The primary business requirement is to ensure the highest level of data availability and integrity, as downtime or data loss is unacceptable. Regulatory compliance mandates that all patient data (data-at-rest) must be encrypted. The current plan involves using a storage policy with Failures to Tolerate (FTT) set to 2 and a Failure Tolerance Method (FTM) of RAID-6 (Erasure Coding). The security team has deployed a corporate Key Management Server (KMS) which is located in a separate management cluster. The vSAN cluster will utilize a vSphere Distributed Switch for networking with four 10GbE uplinks per host, configured for LACP. During the design review, a concern is raised about the potential performance impact of both RAID-6 and vSAN's native encryption on the I/O-intensive database VMs. The infrastructure team is also unsure about the recovery process if the KMS server becomes unavailable. The primary goal is to maintain the required levels of availability and security without compromising the performance needed for the EHR system. Which action should the vSAN administrator take to address the performance concerns while still meeting all security and availability requirements?
Referring to the MedCloud Inc. case study, the security team is concerned about an extended outage of the KMS server. What happens to the encrypted vSAN datastore if the KMS becomes unreachable after the ESXi hosts have already booted and unlocked their disks?
An administrator is upgrading a 5-node vSAN cluster from version 6.7 to 7.0 U3. The upgrade of vCenter Server and the ESXi hosts has completed successfully. The administrator now needs to upgrade the vSAN on-disk format. Which of the following is the primary reason to perform this final step?
A vSAN architect is using the official vSAN Sizing Calculator for a new VDI deployment. The requirements are for 500 linked-clone desktops. The architect inputs the workload details and the tool recommends a specific amount of cache tier capacity. What is the primary purpose of the cache tier in a hybrid vSAN cluster for this VDI workload?
A vSAN administrator is alerted to a network partition in a 6-node standard vSAN cluster. The vSAN Health service shows that two hosts can no longer communicate with the other four hosts. The two hosts have formed their own partition. What is the state of the VM objects whose components are located entirely on the two-host partition?