Oracle Cloud Infrastructure Documentation

Glossary

    A
  • A subnet that is specific to a particular availability domain (AD). Historically all subnets were AD-specific. Compare with regional subnets, which Oracle recommends over AD-specific subnets.
  • The trigger rule and query to evaluate and related configuration, such as notification details to use when the trigger is breached. Alarms passively monitor your cloud resources using metrics in Monitoring.
  • A credential for securing requests to the Oracle Cloud Infrastructure REST API.
  • Link a volume and instance together. Allows an instance to connect and mount the volume as a hard drive.
  • Oracle Cloud Infrastructure-generated token you use to authenticate with third-party APIs, such as a Swift client.
  • One or more isolated, fault-tolerant Oracle data centers that host cloud resources such as instances, volumes, and subnets. A region contains one or more availability domains.
  • B
  • A logical entity defined by a list of backend servers, a load balancing policy, and a health check policy.
  • A cloud infrastructure that allows you to utilize hosted physical hardware, as opposed to traditional software-based virtual machines, ensuring a high level of security and performance.
  • A virtual disk that provides persistent storage space for instances in the cloud.
  • A logical container for storing objects.
  • C
  • Stands for Challenge-Handshake-Authentication-Protocol. It is a security protocol used by iSCSI for authentication between a volume and an instance.
  • A service that allows you to add block storage volumes to an instance in order to expand the available storage on that resource.
  • A virtual version of a traditional network—including CIDRs, subnets, route tables, and gateways—on which your instance runs.
  • A collection of related resources that can be accessed only by certain groups that have been given permission by an administrator in your organization.
  • A service that lets you provision and manage compute hosts, known as instances.
  • Make an attached volume usable by an instance's guest OS.
  • A virtual representation of the edge router at your end of an IPSec VPN that connects your VCN and on-premises network.
  • Used with Oracle Cloud Infrastructure FastConnect. In a colocation scenario, this is the physical cable connecting your existing network to Oracle in the FastConnect location.
  • Used with Oracle Cloud Infrastructure FastConnect. In a colocation scenario, this is a link aggregation group (LAG) that contains at least one cross-connect.
  • A virtual representation of the edge router at your end of an IPSec VPN that connects your VCN and on-premises network.
  • D
  • A timestamp-value pair for the specified metric. (Monitoring service.) Example: 2018-05-10T22:19:00Z, 10.4
  • A dedicated bare metal instance running Oracle Linux, optimized for running one or more Oracle databases. A DB System is a Database Service resource.
  • Configuration information that is automatically provided to the instances when they boot up.
  • A qualifier provided in a metric definition. (Monitoring service.) Example: Resource identifier (resourceId), provided in the definitions of oci_computeagent metrics.
  • A friendly name or description that helps you easily identify the resource.
  • An optional virtual router that you can add to your VCN to provide a path for private network traffic between your VCN and on-premises network.
  • When you attach a dynamic routing gateway (DRG) to a virtual cloud network (VCN), the result is a DRG attachment object. To detach the DRG, you delete that attachment object.
  • A special type of IAM group that contains instances that match rules that you define (thus the membership can change dynamically as matching instances are terminated or launched). These instances act as "principal" actors and can make API calls to Oracle Cloud Infrastructure services according to IAM policies that you write for the dynamic group.
  • An optional virtual router that you can add to your VCN to provide a path for private network traffic between your VCN and on-premises network.
  • E
  • A public IP address (and related properties) that is temporary and exists for the life of the instance it's assigned to. It can be assigned only to the primary private IP on a VNIC. Compare with reserved public IP.
  • Controls how file systems are accessed by NFS clients when they connect to a mount target.
  • A set of parameters that specify the level of access granted to NFS clients when they connect to a mount target.
  • F
  • FastConnect provides an easy way to create a dedicated, private connection between your data center or existing network and Oracle Cloud Infrastructure. FastConnect provides higher-bandwidth options, and a more reliable and consistent networking experience compared to internet-based connections.
  • A logical grouping of hardware and infrastructure within an availability domain to provide isolation of resources in case of hardware failure or unexpected software changes.
  • An organized system of directories and folders where data is stored.
  • The time period between each posted raw data point for a given metric. (Raw data points are posted by the metric namespace to the Monitoring service.)
  • G
  • A collection of users who all need a particular type of access to a set of resources or compartment.
  • An operating system installed on a cloud instance.
  • An operating system installed on a cloud instance.
  • H
  • A test to confirm the availability of backend servers.
  • I
  • A service that allows customers to rapidly scale up or down their computer infrastructure (computing, storage, or network).
  • The service for controlling authentication and authorization of users who need to use your cloud resources. Also called "IAM".
  • The service for controlling authentication and authorization of users who need to use your cloud resources. Also called "IAM".
  • A service that provides identifying credentials and authentication for federated users.
  • Short for "identity provider", which is a service that provides identifying credentials and authentication for federated users.
  • A template of a virtual hard drive that determines the operating system and other software for an instance.
  • A service that allows customers to rapidly scale up or down their computer infrastructure (computing, storage, or network).
  • A bare metal or virtual machine (VM) compute host. The image used to launch the instance determines its operating system and other software. The shape specified during the launch process determines the number of CPUs and memory allocated to the instance.
  • An optional virtual router that you can add to your VCN. It provides a path for network traffic between your VCN and the internet.
  • The time window used to convert the given set of raw data points. (Monitoring service.) Example: 5 minutes
  • The secure connection between a dynamic routing gateway (DRG) and customer-premises equipment (CPE), consisting of multiple IPSec tunnels. The IPSec connection is one of the components forming a site-to-site VPN between a virtual cloud network (VCN) and your on-premises network.
  • A unique ID assigned to an iSCSI device. Used when connecting a volume to an instance.
  • A TCP/IP based standard used for communication between a volume and attached instance.
  • A unique ID assigned to an iSCSI device. Used when connecting a volume to an instance.
  • K
  • A security mechanism consisting of a public key and a private key. Required (for example) for Secure Shell (SSH) access to an instance.
  • L
  • An entity that checks for incoming traffic on the load balancer's public floating IP address.
  • A component on a VCN for routing traffic to a locally peered VCN. "Local" peering means the two VCNs are in the same region. Compare with a remote peering connection.
  • The process of connecting two VCNs in the same region so that their resources can communicate without routing the traffic over the internet or through your on-premises network.
  • A component on a VCN for routing traffic to a locally peered VCN. "Local" peering means the two VCNs are in the same region. Compare with a remote peering connection.
  • M
  • An alert published to all subscriptions in the specified topic. Each message is delivered at least once per subscription. (Notifications and Monitoring services.)
  • A measurement related to health, capacity, or performance of a given resource. (Monitoring service). Example: CpuUtilization
  • A set of references, qualifiers, and other information provided by a metric namespace for a given metric. (Monitoring service.)
  • Indicator of the resource, service, or application that emits the metric. Provided in the metric definition. (Monitoring service.) Example: oci_computeagent
  • An individual set of aggregated data for a metric. Typically specific to a resource. (Monitoring service.)
  • The syntax used for metric and alarm queries. (Monitoring service.)
  • A directory from which a client may access a remote File Storage Service file system.
  • An NFS endpoint that allows a file system to be accessed by clients.
  • Monitoring Query Language.The syntax used for metric and alarm queries. In the Console, MQL syntax of queries is displayed in Advanced Mode. (Monitoring service.)
  • N
  • An optional virtual router that you can add to your VCN to perform Network Address Translation (NAT). A NAT gateway gives cloud resources without public IP addresses access to the internet without exposing those resources to incoming internet connections.
  • Protocol and other details for sending messages when the alarm transitions to another state, such as from "OK" to "FIRING." (Monitoring service.)
  • O
  • Any type of data, regardless of content type, is stored as an object. The object is composed of the object itself and metadata about the object. Each object is stored in a bucket.
  • An Oracle-assigned unique ID called an Oracle Cloud Identifier (OCID). This ID is included as part of the resource's information in both the Console and API.
  • A single-use Console password that Oracle assigns to a new user, or to an existing user who requested a password reset.
  • An Oracle-assigned unique ID called an Oracle Cloud Identifier (OCID). This ID is included as part of the resource's information in both the Console and API.
  • A single-use Console password that Oracle assigns to a new user, or to an existing user who requested a password reset.
  • P
  • An IAM document that specifies who has what type of access to your resources. It is used in different ways: to mean an individual statement written in the policy language; to mean a collection of statements in a single, named "policy" document (which has an Oracle Cloud ID (OCID) assigned to it); and to mean the overall body of policies your organization uses to control access to resources.
  • Policies can contain one or more individual statements. Each statement gives a group a certain type of access to certain resources in a particular compartment.
  • The private IP that is automatically created and assigned to a VNIC during creation.
  • The VNIC that is automatically created and attached to an instance during launch.
  • An object that contains a private IP address and related properties such as a hostname for DNS. Each instance automatically comes with a primary private IP, and you can add secondary ones.
  • One of the ways to use FastConnect. Private peering lets you extend your existing infrastructure into a virtual cloud network (VCN) in Oracle Cloud Infrastructure (for example, to implement a hybrid cloud, or a lift and shift scenario). Communication across the connection is with IPv4 private addresses (typically RFC 1918).
  • A subnet in which instances are not allowed to have public IP addresses
  • A FastConnect virtual circuit that supports private peering.
  • An object that contains a public IP address and related properties. You control whether each private IP on an instance has an assigned public IP. There are two types: reserved public IPs and ephemeral public IPs.
  • One of the way to use FastConnect. Public peering lets your on-premises network access public services in Oracle Cloud Infrastructure without using the internet. For example, Object Storage, the Oracle Cloud Infrastructure Console and APIs, or public load balancers in your VCN. Communication across the connection is with IPv4 public IP addresses. Without FastConnect, the traffic destined for public IP addresses would be routed over the internet. With FastConnect, that traffic goes over your private physical connection.
  • A subnet in which instances are allowed to have public IP addresses. When you launch an instance in a public subnet, you specify whether the instance should have a public IP address.
  • A FastConnect virtual circuit that supports public peering.
  • Q
  • The expression to evaluate for returning aggregated data. A valid query includes a metric, statistic, and interval. In the Console, you can view a query in Basic Mode or Advanced Mode. The latter displays the Monitoring Query Language (MQL) syntax. (Monitoring service.)
  • R
  • A logical collection of regions. Realms are isolated from each other and do not share any data. Your tenancy exists in a single realm and can access the regions that belong to that realm.
  • A collection of availability domains located in a single geographic location.
  • A subnet that spans all availability domains (ADs) in the region. Oracle recommends using regional subnets because they are more flexible and make it easier to implement failover across ADs. Compare with AD-specific subnets.
  • A component on a dynamic routing gateway (DRG) for routing traffic to a remotely peered VCN. "Remote" peering means the two VCNs are in different regions. Compare with a local peering gateway.
  • The process of connecting two VCNs in different regions so that their resources can communicate without routing their traffic over the internet or through your on-premises network.
  • A public IP address (and related properties) that you create in your tenancy and assign to your instances in a given region as you like. It persists in your tenancy until you delete it. It can be assigned to any private IP on a given VNIC, not just the primary private IP. Compare with ephemeral private IP.
  • The period between time windows, or the regularity at which time windows shift. (Monitoring service.) Example: 1 minute
  • The cloud objects that your company's employees create and use when interacting with Oracle Cloud Infrastructure.
  • Virtual route table for your VCN that provides mapping for the traffic from subnets via gateways to external destinations.
  • A component on a dynamic routing gateway (DRG) for routing traffic to a remotely peered VCN. "Remote" peering means the two VCNs are in different regions. Compare with a local peering gateway.
  • S
  • An additional private IP you've added to a VNIC on an instance. Each VNIC automatically comes with a primary private IP that cannot be removed.
  • An additional VNIC you've added to an instance. Each instance automatically comes with a primary VNIC that cannot be removed.
  • A list of virtual firewall rules for your VCN. Security lists consist of security rules that apply to traffic coming in and out of a VNIC. Security lists are configured at the subnet level, which means all VNICs in a given subnet are subject to the same security rules.
  • Virtual firewall rules used by security lists to control traffic at the packet level.
  • An optional virtual router that you can add to your VCN. The gateway enables cloud resources to privately access Oracle services (such as Object Storage and Autonomous Database) without exposing the resources to the public internet.
  • A template that determines the number of CPUs and the amount of memory allocated to a newly created instance.
  • Policies can contain one or more individual statements. Each statement gives a group a certain type of access to certain resources in a particular compartment.
  • The aggregation function applied to the given set of raw data points. Example: SUM
  • Subdivision of your VCN used to separate your network into multiple smaller, distinct networks.
  • An endpoint for a topic. Published messages are sent to each subscription for a topic. Supported subscription protocols include Email and HTTPS (PagerDuty). (Notifications service.)
  • A configuration to avoid publishing messages during the specified time range. Useful for suspending alarm notifications during system maintenance. (Monitoring service.)
  • (Deprecated. Use an auth token to authenticate with your Swift client.) Swift is the OpenStack object store service. A Swift password enables you to use an existing Swift client with Oracle Cloud Infrastructure Object Storage.
  • T
  • The root compartment that contains all of your organization's compartments and other Oracle Cloud Infrastructure cloud resources.
  • The name assigned to a particular company's or organization's overall environment. Users provide their tenant when signing in to the Console.
  • A communication channel for sending messages to the subscriptions in the topic. (Notifications service.)
  • An advanced routing scenario that enables communication between an on-premises network and multiple virtual cloud networks (VCNs) over a single FastConnect or IPSec VPN.
  • The condition that must be met for the alarm to be in the firing state. A trigger rule can be based on a threshold or absence of a metric. (Monitoring service.)
  • U
  • An individual employee or system that needs to manage or use your company's Oracle Cloud Infrastructure resources.
  • V
  • A virtual version of a traditional network—including CIDRs, subnets, route tables, and gateways—on which your instance runs.
  • Used with Oracle Cloud Infrastructure FastConnect. An isolated network path that runs over one or more physical network connections to provide a single, logical connection between the edge of your existing network and Oracle Cloud Infrastructure.
  • A virtual version of a traditional network—including CIDRs, subnets, route tables, and gateways—on which your instance runs.
  • A software-based emulation of a full computer that runs within a physical host computer.
  • A VNIC enables an instance to connect to a VCN and determines how the instance connects with endpoints inside and outside the VCN. Each instance automatically comes with a primary VNIC, and you can add secondary ones. Other types of cloud resources also automatically get a VNIC upon creation (examples: load balancers, DB systems).
  • A software-based emulation of a full computer that runs within a physical host computer.
  • A VNIC enables an instance to connect to a VCN and determines how the instance connects with endpoints inside and outside the VCN. Each instance automatically comes with a primary VNIC, and you can add secondary ones. Other types of cloud resources also automatically get a VNIC upon creation (examples: load balancers, DB systems).
  • A detachable block storage device that allows you to dynamically expand the storage capacity of an instance.
  • W
  • An object that reports on the current state of an asynchronous service request.