XenServer - Revision history

Christoph: /* Glossary of XenServer-related terms */

2015-03-01T23:12:31Z

‎Glossary of XenServer-related terms

Christoph: /* Glossary of XenServer-related terms */

2013-07-22T12:50:37Z

‎Glossary of XenServer-related terms

Christoph: New page: '''Xen''' is a hypervisor providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently. This article will focus on "XenServer" (t...

2013-07-22T12:20:44Z

New page: '''Xen''' is a hypervisor providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently. This article will focus on "XenServer" (t...

New page

'''Xen''' is a hypervisor providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently. This article will focus on "XenServer" (the Citrix Xen-based product that is now Open Source).

==Glossary of XenServer-related terms==
I will use the following terms, acronyms, abbreviations, etc. through my series of articles on XenServer-related stuff.

;XC : XenClassic
;XS : XenServer
;slice : a users Cloud Server in First Gen (also, instance, VM or server)
;host : physical server, which contains a hypervisor Xen or XenServer. Host and hypervisor are commonly used interchangeably.
;VHD : actual Virtual HDD file ends with this extension
;VDI : virtual disk image. A Virtual Hard Drive image record in Xen Server
;SR : Storage Repository
;PBD : Physical Block Device (actual "</code>/dev/sda</code>" on host)
;VBD : virtual block device. What XenServer calls what you "plug" into
;VIF : Virtual Network interface for slice
;LVM : Logical Volume Management (software raid used in XC)
;VM : Virtual Guest Machine (slice/instance)
;PIF : Physical Network Interface
;xe : Xen Server commands start with this
;xm : Xen Classic commands start with this (http://linux.die.net/man/1/xm)
;xl : Command used to run some legacy XC utils in XS (e.g., <code>xl list</code>, <code>xl console</code>)
;network : virtual networks
;pool : a pool of physical hosts
;API : Application Programming Interface. Enables programmers to create application services by using an open application.
flavor : A resource configuration for a server. Each flavor is a unique combination of disk, memory, vCPUs, and network bandwidth.
;HTTP : HyperText Transfer Protocol. The protocol that tells browsers where to find information.
;image : A collection of files for a specific operating system (OS) that you use to create or rebuild a server. You can create custom images from servers that you have launched. Custom images can be used for data backups or as "gold" images for additional servers.
;REST : REpresentational State Transfer. A style of architecture for hypermedia systems that is used for the World Wide web.
;RESTful : A kind of web service API that uses REST.
;server : A computer that provides explicit services to the client software running on that system. A server is a virtual machine (VM) instance in the Cloud Servers environment. To create a server, you must specify a name, flavor reference, and image reference.

[[Category:XenServer]]

@@ Line 2: / Line 2: @@
 ==Glossary of XenServer-related terms==
-I will use the following terms, acronyms, abbreviations, etc. through my series of articles on XenServer-related stuff.
+I will use the following terms, acronyms, abbreviations, etc. through my series of articles on XenServer-related information, programs, and technologies.
 ;XC : XenClassic
@@ Line 9: / Line 9: @@
 ;host : physical server, which contains a hypervisor Xen or XenServer. Host and hypervisor are commonly used interchangeably.
 ;VHD : actual Virtual HDD file ends with this extension
-;VDI : virtual disk image. A Virtual Hard Drive image record in Xen Server
+;VDI : virtual disk image. A Virtual Hard Drive image record in XenServer
 ;SR : Storage Repository
-;PBD : Physical Block Device (actual "<code>/dev/sda</code>" on host)
+;PBD : Physical Block Device (actual "<code>/dev/sda</code>" on host). The PDB is a connector object that represents the interface between a physical host and an attached storage repository (SR). A physical block device is responsible for storing the device configuration fields that are used to connect to, and interact with, a given storage target. It also manages the run-time attachment of a given storage repository to a given host.
-;VBD : virtual block device. What XenServer calls what you "plug" into
+;VBD : virtual block device. What XenServer calls what you "plug" into.
 ;VIF : Virtual Network interface for slice
 ;LVM : Logical Volume Management (software raid used in XC)

@@ Line 11: / Line 11: @@
 ;VDI : virtual disk image. A Virtual Hard Drive image record in Xen Server
 ;SR : Storage Repository
-;PBD : Physical Block Device (actual "</code>/dev/sda</code>" on host)
+;PBD : Physical Block Device (actual "<code>/dev/sda</code>" on host)
 ;VBD : virtual block device. What XenServer calls what you "plug" into
 ;VIF : Virtual Network interface for slice
@@ Line 23: / Line 23: @@
 ;pool : a pool of physical hosts
 ;API : Application Programming Interface. Enables programmers to create application services by using an open application.
-flavor : A resource configuration for a server. Each flavor is a unique combination of disk, memory, vCPUs, and network bandwidth.
+;flavor : A resource configuration for a server. Each flavor is a unique combination of disk, memory, vCPUs, and network bandwidth.
 ;HTTP : HyperText Transfer Protocol. The protocol that tells browsers where to find information.
 ;image : A collection of files for a specific operating system (OS) that you use to create or rebuild a server. You can create custom images from servers that you have launched. Custom images can be used for data backups or as "gold" images for additional servers.