{| class="wikitable sortable" ! Term ! Description |- |'''Apache HTTP Server''' | A Web server software. See https://en.wikipedia.org/wiki/Apache_HTTP_Server. |- |'''CALM''' (cloud account lifecycle management) | Our process for managing the allocation of cloud resources. |- |'''Ceph''' | The distributed data storage platform for our clouds; includes volume storage. |- |'''[[Arbutus_CephFS|CephFS]]''' (Ceph File System) | A filesystem with Ceph storage, which allows data to be mounted simultaneously on multiple OpenStack instances. Currently only available with Arbutus. See https://docs.ceph.com/en/latest/cephfs/. |- |'''cloud''' | When referring to our cloud services, short form of ''IaaS cloud''. |- |'''compute cloud''' | Type of resource allocated to support OpenStack instances intended to run for a limited time, usually with a very high sustained usage of CPU and memory. Flavours for these resources have labels beginning with c*. Currently only available on Arbutus, Béluga and Cedar. Compare with ''persistent cloud''. |- |'''[[CVMFS|CVMFS]]''' (CernVM File System) |A read-only content distribution system often used to manage software. |- |'''ephemeral local disk''' | Virtual disk which is created and destroyed along with an OpenStack instance. An ephemeral disk is created when an instance is launched without the specification of a volume. |- |'''flavor''' |OpenStack term for a predefined specification of a new instance. A flavor can define sizes for RAM, disk, number of cores, and so on. |- |'''floating IP''' | Internet Protocol address that can be associated with an OpenStack instance to allow external access. |- |'''Horizon''' | OpenStack cloud dashboard that is used for viewing and managing cloud resources through a Web browser. See https://docs.openstack.org/horizon/latest/. |- |'''host''' | Physical server supporting virtual machines. |- |'''[[Working_with_images|image]]''' | Image of a virtual disk used to create a new boot volume or ephemeral disk when creating an OpenStack instance. |- |'''instance''' | OpenStack virtual machines are called ''instances'', mostly because they are instances of an image that is created upon request and that is configured when the instance is launched. |- |'''[[Using_ipv6_in_cloud|IPV6]]''' (Internet Protocol version 6) | A communications protocol successor to IPv4. See https://en.wikipedia.org/wiki/IPv6. |- |'''[[Arbutus object storage|object storage]]''' | Object storage (or ''object-based storage'') is a storage type that manages data as objects, as opposed to other storage architectures like filesystems which manage data as a file hierarchy, and storage types where data is managed as blocks. Each object typically includes the data itself, a variable amount of metadata, and a globally unique identifier. Offered as S3 and Swift protocols. Allocated in TB. See https://en.wikipedia.org/wiki/Object_storage. Currently only available with Arbutus. |- |'''[[Managing_your_cloud_resources_with_OpenStack|OpenStack]]''' | The software suite used on our clouds to control hardware resources such as computers, storage and networking. |- |'''persistent cloud''' | Allocation type for persistent virtual machines that are expected to run indefinitely and have low or bursty CPU requirements. Flavours for these resources have labels beginning with p*. Currently only available on Arbutus, Béluga and Cedar. Compare with ''compute cloud''. |- |'''project''' | In our infrastructure, a project represents an allocation of cloud resources to a group or user. Sometimes referred to as ''tenant''. |- |'''[https://alliancecan.ca/en/services/advanced-research-computing/research-portal/accessing-resources/resource-allocation-competitions RAC]''' (Resource Allocation Competition) | Our program via which PIs can submit a request for storage and computer resources beyond what can be obtained via the Rapid Access Service (RAS). The requests are evaluated by a committee of peers. |- |'''[https://alliancecan.ca/en/services/advanced-research-computing/research-portal/accessing-resources/rapid-access-service RAS]''' (Rapid Access Service) |Service by which Principal Investigators can request a modest amount of storage and cloud resources without having to apply to the RAC. |- |'''S3''' (Simple Storage Service) | A type of object storage. See https://en.wikipedia.org/wiki/Amazon_S3. |- |'''[[Managing_your_cloud_resources_with_OpenStack#Security_Groups|security group]]''' | A set of security rules that control network traffic and can be applied as a whole to one or more instances. |- | '''service portal''' | Our infrastructure hosts many Web research portals which serve datasets or tools to a broad research community. These portals generally do not require large computing or storage resources, but may require support efforts from our technical team. Groups applying for a service portal often use our clouds, generally require a public IP address, and may have more stringent up-time requirements than most research projects. |- | '''shared filesystem''' | Persistent storage space offered as a Unix-compliant filesystem that can be mounted across multiple hosts in a project. This is useful for sharing data across multiple hosts. Our service runs on CephFS and requires either a Fuse driver (Windows/Linux) or the CephFS kernel driver (Linux) for access. Allocated in TB. |- |'''snapshot''' | Copy of an OpenStack volume that can be used as a backup or to launch another instance. |- |'''SSL''' (Secure Sockets Layer) | A protocol to allow encrypted communications over networks. SSL is obsolete and should be replaced by TLS (Transport Layer Security) wherever possible. |- |'''[[Using_swift|SWIFT]]''' | A type of object storage. See https://wiki.openstack.org/wiki/Swift. |- |'''tenant''' | See '''project'''. |- |'''TSL''' (Transport Layer Security) | See '''SSL'''. |- |'''vCPU''' (virtual central processing unit) | A vCPU represents a portion or share of the underlying, physical CPU that is assigned to a particular virtual machine. |- |'''[[Using_cloud_vGPUs|vGPU]]''' (virtual graphics processing unit) | A virtual machine can have one or more vGPUs assigned to it. Each of them is seen as a GPU by the operating system. Additional configuration may be required for use. |- |'''virtual machine''' | Virtual server in the cloud infrastructure. In OpenStack, active virtual machines are called ''instances''. |- |'''[[Working_with_volumes|volume]]''' | Storage resource that can be attached to or detached from an OpenStack instance, like a virtual disk. |- | '''volume storage''' | Type of persistent cloud storage providing virtual disk functionality to OpenStack instances running in the cloud. Implemented with Ceph software. Allocated in GB. |} [[Category:Cloud]]