I decided to put on a little collection of terms from the virtualization business. There is many technical terms used today in all over the place, and the newcomers are often lost. Who was not at the beginning? So I thought that if I put a post trying to regroup all those terms, it would help some people to learn a little bit more about Virtualization and IT in general. Feel free to add some more in the comment section. I can do an update later…
CFS – Clustered file system
CVM – Clustered volume manager
DRS – Distributed Resource Scheduler
ESX server – The hardware on which the VI3 software is loaded and running.
Extent – Part of a larger allocation of a resource or an appendage to an existing resource.
Fibre Channel – An ANSI-standard, gigabit-speed network technology used to build storage area networks and transmit data. Fibre Channel components include HBAs, switches, and cabling.
HA – High Availability.
iSCSI – Internet Small Computer Serial Interface.
LUN – Logical Unit Number, what the server sees as a single disk resource.
MSCS – Microsoft Cluster Services.
P2V – Physical to Virtual conversion utility. Like VMware Converter.
RAID – Redundant Array of Independent Disks.
RDM – Raw disk map.
SAN – Storage area network.
SCSI – Small Computer Serial Interface.
VCP – VMware Consolidated Backup.
VI Client – Virtual Infrastructure Client, a browser-based management access point.
VI3 – Virtual Infrastructure 3.
Virtual Center – Centralized management utility for ESX Server (or rather say servers…)
VM – Virtual Machine.
VMDK – Virtual Machine Disk.
VMFS-3 – Version 3 of the Virtual Machine File System.
vmkernel – Core management component of the ESX server system.
Vmotion – A means by which the virtual machine can be moved from one ESX server to another without any