Type 1 hypervisors run directly on the system hardware and are often referred to as bare-metal hypervisors. ESXi is a type 1 hypervisor.
What is a type 2 hypervisor?
Type 2 hypervisors require a host operating system. The host OS provides the I/O device support and memory management.
What is the max number of virtual CPUs per host for ESXi 5.5?
The max number of virtual CPUs per host for ESXi 5.5 is 4,096.
What is the maximum number of logical CPUs (hyper-threading enabled) for ESXi 5.5?
The max number of logical CPUs for ESXi is is 320.
What is the max number of virtual CPUs per core for ESXi 5.5?
The max number of virtual CPUs per core for ESXi 5.5 is 32.
What is the max amount of RAM per host for ESXi 5.5
The max amount of RAM per host for ESXi 5.5 is 4 TB.
The VMkernal manages the virtual machines' access to physical hardware by providing CPU scheduling, memory management and virtual switch data processing.
Processor entitlement is the number of physical processors for which each license is required.
vRAM is the amount of virtual memory configured to a VM. Indicates the amount of vRAM each license adds to the available pool.
Number of virtual CPUs that can be allocated to each VM.
SUSE Linux Enterprise Server for VMware
Free use of Enterprise Linux as a guest OS
Dynamic storage system that reduces storage needs and expands to meet the demand of the VM with no performance degradation.
Three Editions of vSphere
Standard, Enterprise, Enterprise Plus
vRAM entitlement for vSphere Standard
vRAM entitlement for vSphere Enterprise
vRAM entitlement for vSphere Enterprise Plus
vCPU entitlement for Standard & Enterprise
vCPU entitlement for Enterprise Plus
What vSphere Editions have Storage vMotion?
Enterprise & Enterprise Plus
What vSphere Edition has Storage DRS?
Option server application and database utility that assists in patching and upgrading hosts and VMs.
Agentless disk-based backup system that has de-duplication at the destination and is design for small to medium size organizations.
Automatic restart of VMs if they are a host that fails.
Migration of a VM from one physical host to another without disruption.
Storage APIs for data protection
Scalable backup without disruption using third party backup software
Virtual serial port concentrator
Redirects serials ports of VMs so that management traffic is only on the management network.
Allows addition of CPUs and memory without disruption or downtime.
Allows configuration and maintenance of multiple security zones within software among shared hosts.
Provides continue availability for VMs with zero data loss.
Storage APIs for array integration
Improves performance and scalability by leveraging efficient array-based operations.
Migrates VM files across storage arrays while VMs are running.
DRS and DPM
Automatically balances VM loads across hosts
Storage I/O Control
Continusouly monitors I/O load of storage volumes and dynamically allocates available I/O resources based on admin settings
Network I/O control
Prioritizes network access by monitoring I/O load over the network and dynamically allocating available resources to admin specified flows
Centralizes provisioning, administration and monitoring of a virtual network with cluster-level aggregation of resources
Simplifies host deployment and compliance using baselines to automate the configuration of multiple hosts
Allows for deployment of multiple vSphere hosts in minutes by streaming the installation directly into RAM.
Provides effective balancing of VMs across datastores in datastore clusters.
Allows for prioritization of storage options and reduces the steps in the selection of VM storage and ensures that VMs are placed on the right type of storage for each VM.
VMware vCenter Orchestrator Configuration
controls a workflow engine that can help admins automate existing manual tasks
VMware VirtualCenter Management Web Services
Configuration for vCenter web management
VMware VirtualCenter Server
Main service for vCenter Server at the core of management of VMs and ESXi hosts. Required to login to vCenter Server
Provides vCenter Server Lightweight Directory Access Protocol (LDAP) directory services.
Minimum specs for ESXi 5
64-bit CPU, 2 GB RAM, Ethernet controller, disk storage, disk
vCenter System Role: No Access
User cannot see the object when logged on to vCenter
vCenter System Role: Read Only
Only see objects in vCenter inventory but cannot manage them.
vCenter System Role: Administrator
All privileges for an object in the vCenter Inventory
vCenter Sample Roles
Suggested roles by VMware with special privileges appropriate for a certain type of admin role
What is a cluster?
A cluster is an administrative grouping of ESXi hosts.
Distributed Resource Scheduler
Default VM Compatibility
Level of version features for new VMs.
Automatic start up or shutdown with the ESXi host. Also define start up order.
Agent VMs add specific functionality to a virtual environment.
Swap File Location
Configure location of the swap files used for running a VM. By default, the swap file is stored in the same directory as the VM itself. When a host is in the cluster, the cluster setting overrides the per-host setting.
Disable or specify which datastore should be used for host swap files.
vFlash Resource Management
SSD-backed datastores can be allocated to the vFlash resource type.
Collection of all the various configuration settings for an ESXi host.
Benefits of vCenter Appliance
1). Simplified deployment & configuration via web browser. 2). Lower total cost of ownership from free license. 3). No change in user experience when connecting with vSphere Client.
Features not supported in vCenter Appliance
1. vCenter Linked MOde 2. Microsoft SQL Server 3. IPv6