1. VM: Virtual Machine. Okay, thats easy enough!2. ESXi: The
vSphere Hypervisor from VMware. For extra trivia points, know that
Elastic Sky was the original proposed name of the hypervisor and is
now the name of a band made up of VMware employees.3. vmkernel:
Officially the operating system that runs ESXi and delivers storage
networking for VMs. More info.4. VMFS: Virtual Machine File System
for ESXi hosts, a clustered file system for running VMs.5. iSCSI:
Ethernet-based shared storage protocol.6. SAS: Drive type for local
disks (also SATA).7. FCoE: Fibre Channel over Ethernet, a
networking and storage technology. 8. HBA: Host Bus Adapter for
Fibre Channel storage networks.9. IOPs: Input/Outputs per second,
detailed measurement of a drive's performance.10. VM Snapshot: A
point-in-time representation of a VM.11. ALUA: Asymmetrical logical
unit access, a storage array feature. Duncan Epping explains it
well.12. NUMA: Non-uniform memory access, when multiple processors
are involved their memory access is relative to their location.13.
Virtual NUMA: Virtualizes NUMA with VMware hardware version 8
VMs.14. LUN: Logical unit number, identifies shared storage (Fibre
Channel/iSCSI).15. pRDM: Physical mode raw device mapping, presents
a LUN directly to a VM.16. vRDM: Virtual mode raw device mapping,
encapsulates a path to a LUN specifically for one VM in a VMDK.17.
SAN: Storage area network, a shared storage technique for block
protocols (Fibre Channel/iSCSI).18. NAS: Network attached storage,
a shared storage technique for file protocols (NFS).19. NFS:
Network file system, a file-based storage protocol.20. DAS: Direct
attached storage, disk devices in a host directly.21. VAAI:
vStorage APIs for Array Integration, the ability to offload I/O
commands to the disk array.22. SSD: Solid state disk, a
non-rotational drive that is faster than rotating drives.23. VSAN:
Virtual SAN, a new VMware announcement for making DAS deliver SAN
features in a virtualized manner.24. vSwitch: A virtual switch,
places VMs on a physical network.25. vDS: vNetwork Distributed
Switch, an enhanced version of the virtual switch.26. ISO: Image
file, taken from ISO 9660file system for optical drives.27. vSphere
Client: Administrative interface of vCenter Server.28. vSphere Web
Client: Web-based administrative interface of vCenter Server.29.
Host Profiles: Feature to deploy a pre-determined configuration to
an ESXi host. 30. Auto Deploy: Technique to automatically install
ESXi to a host.31. VUM: vSphere Update Manager, a way to update
hosts and VMs with latest patches, VMware Tools and product
updates.32. vCLI: vSphere Command Line Interface, allows tasks to
be run against hosts and vCenter Server.33. vSphere HA: High
Availability, will restart a VM on another host if it fails.34.
vCenter Server Heartbeat: Will keep the vCenter Server available in
the event a host fails which is running vCenter.35. Virtual
Appliance: A pre-packed VM with an application on it.36. vCenter
Server: Server application that runs vSphere.37. vCSA: Virtual
appliance edition of vCenter Server.38. vCloud Director:
Application to pool vCenter environments and enable self-deployment
of VMs.39. vCloud Automation Center: IT service delivery through
policy and portals, get familiar with vCAC.40. VADP: vSphere APIs
for Data Protection, a way to leverage the infrastructure for
backups.41. MOB: Managed Object Reference, a technique vCenter uses
to classify every item.42. DNS: Domain Name Service, a name
resolution protocol. Not related to VMware, but it is imperative
you set DNS up correctly to virtualize with vSphere.43. vSphere:
Collection of VMs, ESXi hosts, and vCenter Server.44. SSH to ESXi
host: The administrative interface you want to use for
troubleshooting if you cant use the vSphere Client or vSphere Web
Client.45. vCenter Linked Mode: A way of pooling vCenter Servers,
typically across geographies.46. vMotion: A VM migration
technique.47. Storage vMotion: A VM storage migration technique
from one datastore to another.48. vSphere DRS: Distributed Resource
Scheduler, service that manages performance of VMs.49. vSphere
SDRS: Storage DRS, manages free space and datastore latency for VMs
in pools.50. Storage DRS Cluster: A collection SDRS objects
(volumes, VMs, configuration).
