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==Glossary==


===Flavor===
<!--
Predefined resource profile for instances (number of vCPUs, RAM, local system disk). Examples: m1.small, m1.large.
'''External Storage (S3 / NFS)''': Object storage or network drive for personal data, backups, or hard-to-reproduce results. Recommended for anything that is not temporary.
-->'''bwIDM''': Federated identity management system of the higher education institutions in Baden-Württemberg, Germany (https://www.bwidm.de).


===Floating IP===
'''bwSupportPortal:''' Federated support portal in Baden-Württemberg for services such as bwCloud-OS, bwHPC, and bwSFS (https://bw-support.scc.kit.edu).
Publicly accessible IPv4 address that can be assigned to an instance as needed. This keeps the internal network topology unchanged.


===Home Region===
'''Customer:''' The universities that fulfill the c[[Guide: Conditions of use|onditions of use]] can be seen as customers of the bwCloud-OS.
The region automatically assigned to a user during registration.


===Image===
'''Eligibility:''' The privilege owned by a user, allowing to consume resources within a project.
Operating system image from which new instances are launched. bwCloud-OS provides various preconfigured images (e.g., Debian 12, Ubuntu 24.04); custom images can also be uploaded.


===Instance / VM===
'''Entitlement:''' An attribute of a user that contains information about the eligibility.
Virtual machine running in a region. It receives CPU, RAM, network, and storage resources and behaves like a physical server.


===Project / Group Project===
'''Flavor''': Predefined resource profile for instances (number of vCPUs, RAM, and local system disk). Examples: ''m1.small'', ''m1.large''.
Administrative container for resources, users, and quotas. In a group project, multiple people share all instances, images, security groups, etc., equally.


===Quota===
'''Floating IP''': A publicly accessible IP address that can be assigned to an instance as needed. This keeps the internal network topology unchanged.
Resource limit (vCPUs, RAM, volumes, etc.) per project. Increases can be requested via a support ticket.


===Region===
'''Home organization:''' The institute of a user who is managing his/her account.
One of the four operational sites (Freiburg, Karlsruhe, Mannheim, Ulm). Each region is an independent OpenStack cluster with its own IP address logic.


===Security Group===
'''Home Region''': The region automatically assigned to a user during registration.
Set of firewall rules (inbound/outbound) assigned to an instance. By default, only SSH (port 22) is open; additional ports must be explicitly allowed.


===Snapshot===
'''IaaS (Infrastructure as a Service)''': A cloud computing service model in which computing resources are provided by a cloud service provider. The provider supplies the storage, networking, servers, and virtualization.
Point-in-time copy of an instance or volume. Snapshots appear as images and can be downloaded or converted into new volumes/instances.


===Volume (Block Storage)===
'''Image''': Operating system image from which new instances are launched. bwCloud-OS provides various preconfigured images (e.g., ''Debian 12'', ''Ubuntu 24.04''); custom images can also be uploaded.
Persistent storage in bwCloud-OS that exists independently of a VM. Volumes can be attached to instances, resized, exported as images, or backed up via snapshots.
 
'''Instance / VM''': Virtual machine running in a region. It receives CPU, RAM, network, and storage resources, and behaves like a physical server.
 
'''Project'''  '''/ Group Project''': Administrative container for resources, users, and quotas. In a (group) project, multiple people share all instances, images, security groups, etc. equally.
 
'''Project owner:''' User owning the eligibility assigned to the project. Primary contact person for operational issues, incidents, and support inquiries.
 
'''Quota''': Resource limits (vCPUs, RAM, volumes, etc.) per project. Increases can be requested via a support ticket.
 
'''Region''': One of the four operational sites (Freiburg, Karlsruhe, Mannheim, Ulm). Each region is an independent OpenStack cluster with its own IP address logic.
 
'''Security Group''': Set of firewall rules (inbound/outbound) assigned to an instance. By default, only SSH (port 22) is open. Additional ports must be explicitly allowed.
 
'''Snapshot''': Point-in-time copy of an instance or volume. Snapshots appear as images and can be downloaded or used to create new volumes or instances.
 
'''Volume (Block Storage)''': Persistent storage in bwCloud-OS that exists independently of a VM. Volumes can be attached to instances, resized, exported as images, and backed up via snapshots.

Latest revision as of 09:31, 27 January 2026

bwIDM: Federated identity management system of the higher education institutions in Baden-Württemberg, Germany (https://www.bwidm.de).

bwSupportPortal: Federated support portal in Baden-Württemberg for services such as bwCloud-OS, bwHPC, and bwSFS (https://bw-support.scc.kit.edu).

Customer: The universities that fulfill the conditions of use can be seen as customers of the bwCloud-OS.

Eligibility: The privilege owned by a user, allowing to consume resources within a project.

Entitlement: An attribute of a user that contains information about the eligibility.

Flavor: Predefined resource profile for instances (number of vCPUs, RAM, and local system disk). Examples: m1.small, m1.large.

Floating IP: A publicly accessible IP address that can be assigned to an instance as needed. This keeps the internal network topology unchanged.

Home organization: The institute of a user who is managing his/her account.

Home Region: The region automatically assigned to a user during registration.

IaaS (Infrastructure as a Service): A cloud computing service model in which computing resources are provided by a cloud service provider. The provider supplies the storage, networking, servers, and virtualization.

Image: Operating system image from which new instances are launched. bwCloud-OS provides various preconfigured images (e.g., Debian 12, Ubuntu 24.04); custom images can also be uploaded.

Instance / VM: Virtual machine running in a region. It receives CPU, RAM, network, and storage resources, and behaves like a physical server.

Project / Group Project: Administrative container for resources, users, and quotas. In a (group) project, multiple people share all instances, images, security groups, etc. equally.

Project owner: User owning the eligibility assigned to the project. Primary contact person for operational issues, incidents, and support inquiries.

Quota: Resource limits (vCPUs, RAM, volumes, etc.) per project. Increases can be requested via a support ticket.

Region: One of the four operational sites (Freiburg, Karlsruhe, Mannheim, Ulm). Each region is an independent OpenStack cluster with its own IP address logic.

Security Group: Set of firewall rules (inbound/outbound) assigned to an instance. By default, only SSH (port 22) is open. Additional ports must be explicitly allowed.

Snapshot: Point-in-time copy of an instance or volume. Snapshots appear as images and can be downloaded or used to create new volumes or instances.

Volume (Block Storage): Persistent storage in bwCloud-OS that exists independently of a VM. Volumes can be attached to instances, resized, exported as images, and backed up via snapshots.