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 terms that explain what each component does. The terms in this glossary are intended to complement the existing technical terminology.
Sometimes more than one term applies to a definition. Generally, the first term reflects a term consistent with Ceph’s marketing, and secondary terms reflect either technical terms or legacy ways of referring to Ceph systems.
- Ceph Project
- Ceph 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。
- Ceph
- Ceph Platform
- Ceph 平台
所有与 Ceph 相关的软件，包括所有位于 https://github.com/ceph 的源码。
- Ceph System
- Ceph Stack
- Ceph 系统
- Ceph 软件栈
Ceph 之中两个或更多组件的组合。
- Ceph Node
- Node
- Host
- Ceph 节点
- 节点
- 主机
Ceph 系统内的任意单体机器或服务器。
- Ceph Storage Cluster
- Ceph Object Store
- RADOS
- RADOS Cluster
- Reliable Autonomic Distributed Object Store
- Ceph 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 Map
- cluster map
- Ceph 集群运行图
- 集群运行图
The set of maps comprising the monitor map, OSD map, PG map, MDS map and CRUSH map. See Cluster Map for details.
- Ceph Object Storage
- Ceph 对象存储
The object storage “product”, service or capabilities, which consists essentially of a Ceph Storage Cluster and a Ceph Object Gateway.
- Ceph Object Gateway
- RADOS Gateway
- RGW
- Ceph 对象网关
- RADOS 网关
The S3/Swift gateway component of Ceph.
- Ceph Block Device
- RBD
- Ceph 块设备
- RBD
The block storage component of Ceph.
- Ceph Block Storage
- Ceph 块存储
The block storage “product,” service or capabilities when used in conjunction with
librbd, a hypervisor such as QEMU or Xen, and a hypervisor abstraction layer such aslibvirt.- Ceph Filesystem
- CephFS
- Ceph FS
- Ceph 文件系统
Ceph 的组件之一，与 POSIX 兼容的文件系统。详情见 CephFS 体系结构 和 Ceph 文件系统 。
- Cloud Platforms
- Cloud Stacks
- 云平台
- 云软件栈
Third party cloud provisioning platforms such as OpenStack, CloudStack, OpenNebula, ProxMox, etc.
- Object Storage Device
- OSD
- 对象存储设备
一个物理的或逻辑的存储单元（如 LUN ）。 有时候， Ceph 用户以术语 OSD 来引用 Ceph OSD 守护进程，然而恰当的术语应该是 Ceph OSD 。
- Ceph OSD Daemon
- Ceph OSD Daemons
- Ceph OSD
- Ceph 对象存储守护进程
- Ceph OSD 守护进程
The Ceph OSD software, which interacts with a logical disk (OSD). Sometimes, Ceph users use the term “OSD” to refer to “Ceph OSD Daemon”, though the proper term is “Ceph OSD”.
- OSD id
定义一个 OSD 的整数。它是在新建 OSD 期间由监视器们生成的。
- OSD fsid
This is a unique identifier used to further improve the uniqueness of an OSD and it is found in the OSD path in a file called
osd_fsid. Thisfsidterm is used interchangeably withuuid- OSD uuid
Just like the OSD fsid, this is the OSD unique identifier and is used interchangeably with
fsid- bluestore
OSD BlueStore is a new back end for OSD daemons (kraken and newer versions). Unlike filestore it stores objects directly on the Ceph block devices without any file system interface.
- filestore
OSD 守护进程的一个后端，它需要日志、且文件是写入文件系统的。
- Ceph Monitor
- MON
- Ceph 监视器
- 监视器
The Ceph monitor software.
- Ceph Manager
- MGR
- Ceph 管理器
- 管理器
Ceph 管理器软件，它会把整个集群的所有状态信息收集到一起。
- Ceph Manager Dashboard
- Ceph Dashboard
- Dashboard Plugin
- Dashboard
- Ceph 管理器仪表盘
- Ceph 仪表盘
- 仪表盘插件
- 仪表盘
一个内建的、基于网页的 Ceph 管理和监控应用程序，可用于管理集群的各方面以及对象。仪表盘是以一个 Ceph 管理器模块实现的。详情见 Ceph 仪表盘 。
- Ceph Metadata Server
- MDS
- Ceph 元数据服务器
- 元数据服务器
The Ceph metadata software.
- Ceph Clients
- Ceph Client
- Ceph 客户端
The collection of Ceph components which can access a Ceph Storage Cluster. These include the Ceph Object Gateway, the Ceph Block Device, the Ceph Filesystem, and their corresponding libraries, kernel modules, and FUSEs.
- Ceph Kernel Modules
- Ceph 内核模块
The collection of kernel modules which can be used to interact with the Ceph System (e.g,.
ceph.ko,rbd.ko).- Ceph Client Libraries
- Ceph 客户端库
The collection of libraries that can be used to interact with components of the Ceph System.
- Ceph Release
- Ceph 发布
Any distinct numbered version of Ceph.
- Ceph Point Release
- Ceph 修正版
- Ceph 小版本
Any ad-hoc release that includes only bug or security fixes.
- Ceph Interim Release
- Ceph 临时发布
Versions of Ceph that have not yet been put through quality assurance testing, but may contain new features.
- Ceph Release Candidate
- Ceph 预发布
A major version of Ceph that has undergone initial quality assurance testing and is ready for beta testers.
- Ceph Stable Release
- Ceph 稳定版
A major version of Ceph where all features from the preceding interim releases have been put through quality assurance testing successfully.
- Ceph Test Framework
- Teuthology
- Ceph 测试框架
- 测试方法学
对 Ceph 进行脚本化测试的一系列软件。
- CRUSH
Controlled Replication Under Scalable Hashing. It is the algorithm Ceph uses to compute object storage locations.
- CRUSH rule
- CRUSH 规则
The CRUSH data placement rule that applies to a particular pool(s).
- Pool
- Pools
- 存储池
池是对象存储的逻辑部分。
- systemd oneshot
一种 systemd 类型
type，用于确定ExecStart的命令完成后是否退出（不想把它作为守护进程）。- LVM 标签
LVM 卷和组的可扩展元数据，我们用它来存储 Ceph 相关的信息，如各设备、以及它们与 OSD 的关系。
