VMware Cloud Foundation
-virtualizes servers, network, storage and allows you to virtualize on-premise workloads
-SDDC Manager allows development of
... [Show More] workloads and allows you to work with them
-build platform on-premise and off-premise, scale up and add workloads
SDDC
Software Defined Data Center
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VSphere Core Components
-ESXi
-vCenter Server
ESXi
-A core component of vSphere, it is VMware's bare-metal hypervisor.
-hypervisor OS installed where VM will reside
Virtual Machine(VM)
software computer that(like physical computer) runs on operating system and applications
-basic VM sits on top of virtualization layer
vCenter Server
-The central point for configuring, provisioning, and managing virtualized IT environments.
-It provides essential data center services such as access control, performance monitoring, and alarm management.
-allows centralized functionality, administer all environment in one interface
vSphere Core Technology
-vMotion
-svMotion
-DRS (Distributed Resource Scheduler)
-High availability
vMotion
-Enables live migration of running virtual machines between ESXi hosts.
-VM can be powered on or off
-requires vCenter server
-why? host maintenance, patches, workloads
svMotion
Storage vMotion
-process of moving VM data from one VMFS storage to another
-VM can be on or off
-requires vCenter Server to perform operation
VM data includes:
-VMDK data files
-VM Swap files
-VM Descriptor Files
High Availability
-enables quick restart of virtual machines on a different physical server within a cluster automatically should the hosting server fail
-VMware HA works by placing an agent on each physical server to maintain a "heartbeat" with other servers in the cluster
DRS (Distributed Resource Scheduler)
ability to move VMs based on VM load and making sure the VMs have the resources needs
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StorageDRS (SDRS)
moves VMs from one datastore to another (not load balancing, just makes sure VMs have whats needed to run
-Storage I/O Control: Throttles VMs to ensure fairness
Different Storage Arrays
-local
-fibre channel SAN arrays
-NFS(Network File System)
-vSAN(virtual storage area network)
-iSCSI SAN arrays (ethernet)
VMFS
VMware file system (block level storage)
- local block devices
- local disks or SAN
-vMotion and fail over require SAN
NFS
Network File System
-a client/server application that lets a computer user view and optionally store and update file on a remote computer as though they were on the user's own computer.
-The user's system needs to have an NFS client and the other computer needs the NFS server.
vSAN
object based file system(OSFS)
-pieces of vmware stored as objects
RDM
Raw Device Mapping
-presenting storage directly to a VM
Standard Network Switches
-can be used by ESXi services
-it can be used for VMs
-it can be used for fallover purposes
-it can be used for security purposes
Distributed Network Switch
-provides centralized administration
-provides simplified VM network configuration
-enhanced monitoring
-each VMware vCenter Server instance can support up to 128 VDSs (each VDS can manage up to 500 hosts
Host Profile
-establish standard configurations for VMware ESXi host
-automates compliance
-reduces configuration
The SDDC Initiative
Software Defined Data Center
-extraction of traditional hardware into software components that then are consumable in software based data center
Components SDDC extracts from physical hardware/server
-Compute: server virtualization - CPU, memory
-Network Layer: virtual networking - physical server networking
-Storage: Software defined storage - local and shared
Top Layer of SDDC
SDDC Management & Automation Stack
SDDC Management & Automation Stack
-Top Layer of SDDC
-Cloud Automation: avRealized automation, integrated open stack
- Cloud Operations: intelligent operations component of vRealize suite
-Cloud Business: vRealize business for cloud
Two Main Components of vSphere
1. ESXi: extract the compute layer, CPU memory, local storage from physical its located on
2. vCenter: front end; DRS, vMotion & storage vMotion; leverages vSAN, NSX, automation and operation
VMware SDDC
translation of traditional hardware components into software
VMware SDDC components
-ESXi- hypervisor
-vCenter- Management Operations
-SDS- Software Defined Storage
-SDN- Software Defined Network
vSphere Use Cases
-Server Virtualization
-Desktop Virtualization
-Storage Virtualization
-Network Virtualization
-Software Defined Data Center (SDDC)
Server Virtualization
-Before virtualization, we used to have one physical server per service
-with virtualization, we can turn physical servers into processes
Server Virtualization results in reduction of
-administration
-power
-cooling
-licensing
Desktop Virtualization
-desktop managed from centralized location
-internal cloud accessible remotely
Storage Virtualization
-using local storage to create a vSAN datastore
-data is mirrored in vSAN cluster & witness maintains quorum
Network Virtualization
-network hypervisor(standard vswitches)-> NSX virtualizes entire environment allows microsegmentation [Show Less]