Ceph 术语

Ceph is growing rapidly. As firms deploy Ceph, the technical terms such as“RADOS”, “RBD,” “RGW” and so forth require corresponding marketing termsthat explain what each component does. The terms in this glossary areintended to complement the existing technical terminology.

Sometimes more than one term applies to a definition. Generally, the firstterm reflects a term consistent with Ceph’s marketing, and secondary termsreflect either technical terms or legacy ways of referring to Ceph systems.

• Ceph ProjectCeph 项目
• 关于 Ceph 的团队、软件、任务和基础架构的统称。
• cephx
• Ceph 的认证协议， Cephx 的运行机制类似 Kerberos ，但它没有单故障点。
• CephCeph PlatformCeph 平台
• 所有与 Ceph 相关的软件，包括所有位于 http://github.com/ceph 的源码。
• Ceph SystemCeph StackCeph 系统Ceph 软件栈
• Ceph 之中两个或更多组件的组合。
• Ceph NodeNodeHostCeph 节点节点主机
• Ceph 系统内的任意单体机器或服务器。
• Ceph Storage ClusterCeph Object StoreRADOSRADOS ClusterReliable Autonomic Distributed Object StoreCeph 存储集群Ceph 对象存储RADOS 集群可靠自主的分布式对象存储
• The core set of storage software which stores the user’s data (MON+OSD).
• Ceph Cluster Mapcluster mapCeph 集群运行图集群运行图
• The set of maps comprising the monitor map, OSD map, PG map, MDS map andCRUSH map. See Cluster Map for details.
• Ceph Object StorageCeph 对象存储
• The object storage “product”, service or capabilities, which consistsessentially of a Ceph Storage Cluster and a Ceph Object Gateway.
• Ceph Object GatewayRADOS GatewayRGWCeph 对象网关RADOS 网关
• The S3/Swift gateway component of Ceph.
• Ceph Block DeviceRBDCeph 块设备RBD
• The block storage component of Ceph.
• Ceph Block StorageCeph 块存储
• The block storage “product,” service or capabilities when used inconjunction with librbd, a hypervisor such as QEMU or Xen, and ahypervisor abstraction layer such as libvirt.
• Ceph FilesystemCephFSCeph FSCeph 文件系统
• The POSIX filesystem components of Ceph.
• Cloud PlatformsCloud Stacks云平台云软件栈
• Third party cloud provisioning platforms such as OpenStack, CloudStack,OpenNebula, ProxMox, etc.
• Object Storage DeviceOSD对象存储设备
• A physical or logical storage unit (e.g., LUN).Sometimes, Ceph users use theterm “OSD” to refer to Ceph OSD Daemon, though theproper term is “Ceph OSD”.
• Ceph OSD DaemonCeph OSDCeph 对象存储守护进程Ceph OSD 守护进程
• The Ceph OSD software, which interacts with a logicaldisk (OSD). Sometimes, Ceph users use theterm “OSD” to refer to “Ceph OSD Daemon”, though theproper term is “Ceph OSD”.
• Ceph MonitorMONCeph 监视器监视器
• The Ceph monitor software.
• Ceph Metadata ServerMDSCeph 元数据服务器元数据服务器
• The Ceph metadata software.
• Ceph ClientsCeph ClientCeph 客户端
• The collection of Ceph components which can access a Ceph StorageCluster. These include the Ceph Object Gateway, the Ceph Block Device,the Ceph Filesystem, and their corresponding libraries, kernel modules,and FUSEs.
• Ceph Kernel ModulesCeph 内核模块
• The collection of kernel modules which can be used to interact with theCeph System (e.g,. ceph.ko, rbd.ko).
• Ceph Client LibrariesCeph 客户端库
• The collection of libraries that can be used to interact with componentsof the Ceph System.
• Ceph ReleaseCeph 发布
• Any distinct numbered version of Ceph.
• Ceph Point ReleaseCeph 修正版
• Any ad-hoc release that includes only bug or security fixes.
• Ceph Interim ReleaseCeph 临时发布
• Versions of Ceph that have not yet been put through quality assurancetesting, but may contain new features.
• Ceph Release CandidateCeph 预发布
• A major version of Ceph that has undergone initial quality assurancetesting and is ready for beta testers.
• Ceph Stable ReleaseCeph 稳定版
• A major version of Ceph where all features from the preceding interimreleases have been put through quality assurance testing successfully.
• Ceph Test FrameworkTeuthologyCeph 测试框架测试方法学
• The collection of software that performs scripted tests on Ceph.
• CRUSH
• Controlled Replication Under Scalable Hashing. It is the algorithmCeph uses to compute object storage locations.
• ruleset规则集
• A set of CRUSH data placement rules that applies to a particular pool(s).
• PoolPools存储池
• 池是对象存储的逻辑部分。