1.8 – Describe vSphere Lifecycle Manager concepts (baselines, cluster images, etc.)
vSphere Lifecycle manager automates the process of VMs and removing them from service at the appropriate time. It automatically places servers based on their location, org, environment, service level or performance levels. When a solution is found for a set of criteria, the machine is automatically deployed In previous iterations of vCenter this was called […]
1.7.3 – Describe networking policies
Policies that are set at the standard switch level apply to all port groups on the standard switch by default Available network policies: Security: protects against MAC address impersonation and unwanted port scanning Traffic shaping: Limit the amount of traffic to a VM or a group of VMs NIC teaming and failover: How traffic should […]
1.7.4 – Manage Network I/O Control (NIOC) on a vSphere distributed switch
Use NIOC to allocate network bandwidth to business critical apps and to resolve situations where several traffic types compete for common resources. You’ll need an enterprise pluc license to use this and you can also create new Network Resource Pools if you want. It’s only available on a dSwitch Used to reserve bandwidth for system […]
1.7 – Identify vSphere distributed switch and vSphere standard switch capabilities
standard switch Virtual switch that is configured for a single host Distributed switch Virtual switch that is configured for an entire datacenter Up to 2000 hosts can be attached Configuration is consistent across all attached hosts Hosts must have either an Enterprise Plus license or belong to a vSAN cluster VCenter server owns the config […]
1.6.5 – Describe datastore clusters
A datastore cluster is a collection of datastores with shared resources and a shared management interface. When you create the datastore cluster, you can use storage DRS to manage storage resources. vSphere DRS managed these storage resources Space utilization load balancing I/O latency load balancing Anti-affinity rules Datastore maintenance mode
1.6.4 – Describe vSphere High Availability
Provides a base level of protection for your VMs by restarting VMs if a host fails and enables a collection of ESXi hosts to work together to provide workload availability. When vSphere HA is activated, an HA agent is installed on each host in the cluster. These agents communicate with each other to determine which […]
1.6.3 – Describe how Distributed Resource Scheduler (DRS) scores virtual machines
The VM DRS score is a metric that tracks a VMs execution efficiency on a given host. The cluster DRS score is a weighted average of the VM DRS scores of all powered on VMs in the cluster. The score is calculated every minute and if another host can provide a better score for the […]
1.6.2 – Describe vSphere Enhanced vMotion Compatibility (EVC)
EVC prevents vMotion migrations from failing because of incompatible CPU’s and works at the cluster level, using CPU baselines to configure all processors in the cluster that are activated for EVC. It ensures that all hosts in a cluster present the same CPU features to the VM stack, even if the CPU differs from each […]
1.6.1 – Describe Distributed Resource Scheduler (DRS)
DRS improves resource allocation across all hosts in a cluster. It aggregates computing capacity across a collection of servers into logical resource pools. It allows for automatic placements of workloads in a cluster and to ensure that virtual workloads are “happy”. You also get control of the automation level and you can configure affinity and […]
1.6 – Describe ESXi cluster concepts
A cluster is a collection of ESXi hosts and associated VMs with shared resources and a shared management interface. A cluster shares physical resources between a group of ESXi hosts. Vcenter server manages cluster resources as a single pool of resources. Clusters can contain up to 96 ESXi hosts. Clusters can be created based on […]