.. glossary::
- Ceph Project
- The aggregate term for the people, software, mission and infrastructure
- of Ceph.
-
- cephx
- The Ceph authentication protocol. Cephx operates like Kerberos, but it
- has no single point of failure.
+ bluestore
+ OSD BlueStore is a new back end for OSD daemons (kraken and
+ newer versions). Unlike :term:`filestore` it stores objects
+ directly on the Ceph block devices without any file system
+ interface.
Ceph
- Ceph Platform
- All Ceph software, which includes any piece of code hosted at
- `https://github.com/ceph`_.
-
- Ceph System
- Ceph Stack
- A collection of two or more components of Ceph.
+ Ceph Block Device
+ Ceph Block Storage
+ 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 as ``libvirt``.
- Ceph Node
- Node
- Host
- Any single machine or server in a Ceph System.
+ Ceph Client
+ The collection of Ceph components which can access a Ceph
+ Storage Cluster. These include the Ceph Object Gateway, the
+ Ceph Block Device, the Ceph File System, and their
+ corresponding libraries, kernel modules, and FUSEs.
- Ceph Storage Cluster
- Ceph Object Store
- RADOS
- RADOS Cluster
- Reliable Autonomic Distributed Object Store
- The core set of storage software which stores the user's data (MON+OSD).
+ Ceph Client Libraries
+ The collection of libraries that can be used to interact with
+ components of the Ceph System.
+ Ceph Clients
Ceph Cluster Map
- Cluster Map
- 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
- 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
- The S3/Swift gateway component of Ceph.
-
- Ceph Block Device
- RBD
- The block storage component of Ceph.
-
- Ceph Block Storage
- 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 as ``libvirt``.
-
+ Ceph Dashboard
Ceph File System
CephFS
Ceph FS
- The POSIX filesystem components of Ceph. Refer
-
:ref:`CephFS Architecture <arch-cephfs>` and :ref:`ceph-file-system` for
- more details.
+ The POSIX filesystem components of Ceph. Refer :ref:`CephFS
+ Architecture <arch-cephfs>` and :ref:`ceph-file-system` for
+ more details.
- Cloud Platforms
- Cloud Stacks
- Third party cloud provisioning platforms such as OpenStack, CloudStack,
- OpenNebula, Proxmox VE, etc.
+ Ceph Interim Release
+ Versions of Ceph that have not yet been put through quality
+ assurance testing, but may contain new features.
- Object Storage Device
- OSD
- A physical or logical storage unit (*e.g.*, LUN).
- Sometimes, Ceph users use the
- term "OSD" to refer to :term:`Ceph OSD Daemon`, though the
- proper term is "Ceph OSD".
+ Ceph Kernel Modules
+ The collection of kernel modules which can be used to interact
+ with the Ceph System (e.g., ``ceph.ko``, ``rbd.ko``).
- Ceph OSD Daemon
- Ceph OSD Daemons
+ Ceph Manager
+ Ceph Manager Dashboard
+ Ceph Metadata Server
+ Ceph Monitor
+ Ceph Node
+ Ceph Object Gateway
+ Ceph Object Storage
+ The object storage "product", service or capabilities, which
+ consists essentially of a Ceph Storage Cluster and a Ceph Object
+ Gateway.
+
+ Ceph Object Store
Ceph OSD
The Ceph OSD software, which interacts with a logical
disk (:term:`OSD`). Sometimes, Ceph users use the
term "OSD" to refer to "Ceph OSD Daemon", though the
proper term is "Ceph OSD".
- OSD id
- The integer that defines an OSD. It is generated by the monitors as part
- of the creation of a new OSD.
+ Ceph OSD Daemon
+ Ceph OSD Daemons
+ Ceph Platform
+ All Ceph software, which includes any piece of code hosted at
+ `https://github.com/ceph`_.
- 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``. This
- ``fsid`` term is used interchangeably with ``uuid``
+ Ceph Point Release
+ Any ad-hoc release that includes only bug or security fixes.
- OSD uuid
- Just like the OSD fsid, this is the OSD unique identifier and is used
- interchangeably with ``fsid``
+ Ceph Project
+ The aggregate term for the people, software, mission and
+ infrastructure of Ceph.
- bluestore
- OSD BlueStore is a new back end for OSD daemons (kraken and newer
- versions). Unlike :term:`filestore` it stores objects directly on the
- Ceph block devices without any file system interface.
+ Ceph Release
+ Any distinct numbered version of Ceph.
- filestore
- A back end for OSD daemons, where a Journal is needed and files are
- written to the filesystem.
+ Ceph Release Candidate
+ A major version of Ceph that has undergone initial quality
+ assurance testing and is ready for beta testers.
- Ceph Monitor
- MON
- The Ceph monitor software.
+ Ceph Stable Release
+ A major version of Ceph where all features from the preceding
+ interim releases have been put through quality assurance
+ testing successfully.
- Ceph Manager
- MGR
- The Ceph manager software, which collects all the state from the whole
- cluster in one place.
+ Ceph Stack
+ A collection of two or more components of Ceph.
- Ceph Manager Dashboard
- Ceph Dashboard
- Dashboard Module
- Dashboard Plugin
- Dashboard
- A built-in web-based Ceph management and monitoring application to
- administer various aspects and objects of the cluster. The dashboard is
- implemented as a Ceph Manager module. See :ref:`mgr-dashboard` for more
- details.
+ Ceph Storage Cluster
+ Ceph System
+ Ceph Test Framework
+ cephx
+ The Ceph authentication protocol. Cephx operates like Kerberos,
+ but it has no single point of failure.
- Ceph Metadata Server
- MDS
- The Ceph metadata software.
+ Cloud Platforms
+ Cloud Stacks
+ Third party cloud provisioning platforms such as OpenStack,
+ CloudStack, OpenNebula, Proxmox VE, etc.
- Ceph Clients
- Ceph Client
- The collection of Ceph components which can access a Ceph Storage
- Cluster. These include the Ceph Object Gateway, the Ceph Block Device,
- the Ceph File System, and their corresponding libraries, kernel modules,
- and FUSEs.
+ Cluster Map
+ The set of maps comprising the monitor map, OSD map, PG map,
+ MDS map and CRUSH map. See `Cluster Map`_ for details.
- Ceph Kernel Modules
- The collection of kernel modules which can be used to interact with the
- Ceph System (e.g., ``ceph.ko``, ``rbd.ko``).
+ CRUSH
+ Controlled Replication Under Scalable Hashing. It is the
+ algorithm Ceph uses to compute object storage locations.
- Ceph Client Libraries
- The collection of libraries that can be used to interact with components
- of the Ceph System.
+ CRUSH rule
+ The CRUSH data placement rule that applies to a particular
+ pool(s).
- Ceph Release
- Any distinct numbered version of Ceph.
+ Dashboard
+ A built-in web-based Ceph management and monitoring application
+ to administer various aspects and objects of the cluster. The
+ dashboard is implemented as a Ceph Manager module. See
+ :ref:`mgr-dashboard` for more details.
- Ceph Point Release
- Any ad-hoc release that includes only bug or security fixes.
+ Dashboard Module
+ Dashboard Plugin
+ filestore
+ A back end for OSD daemons, where a Journal is needed and files
+ are written to the filesystem.
- Ceph Interim Release
- Versions of Ceph that have not yet been put through quality assurance
- testing, but may contain new features.
+ Host
+ Any single machine or server in a Ceph System.
- Ceph Release Candidate
- A major version of Ceph that has undergone initial quality assurance
- testing and is ready for beta testers.
+ LVM tags
+ Extensible metadata for LVM volumes and groups. It is used to
+ store Ceph-specific information about devices and its
+ relationship with OSDs.
- Ceph Stable Release
- A major version of Ceph where all features from the preceding interim
- releases have been put through quality assurance testing successfully.
+ MDS
+ The Ceph metadata software.
- Ceph Test Framework
- Teuthology
- The collection of software that performs scripted tests on Ceph.
+ MGR
+ The Ceph manager software, which collects all the state from
+ the whole cluster in one place.
- CRUSH
- Controlled Replication Under Scalable Hashing. It is the algorithm
- Ceph uses to compute object storage locations.
+ MON
+ The Ceph monitor software.
- CRUSH rule
- The CRUSH data placement rule that applies to a particular pool(s).
+ Node
+ Object Storage Device
+ OSD
+ A physical or logical storage unit (*e.g.*, LUN).
+ Sometimes, Ceph users use the
+ term "OSD" to refer to :term:`Ceph OSD Daemon`, though the
+ proper term is "Ceph OSD".
+
+ 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``. This ``fsid`` term is used interchangeably
+ with ``uuid``
+
+ OSD id
+ The integer that defines an OSD. It is generated by the
+ monitors as part of the creation of a new OSD.
+
+ OSD uuid
+ Just like the OSD fsid, this is the OSD unique identifier and
+ is used interchangeably with ``fsid``
Pool
Pools
Pools are logical partitions for storing objects.
+ RADOS
+ RADOS Cluster
+ RADOS Gateway
+ RBD
+ The block storage component of Ceph.
+
+ Reliable Autonomic Distributed Object Store
+ The core set of storage software which stores the user's data
+ (MON+OSD).
+
+ RGW
+ The S3/Swift gateway component of Ceph.
+
systemd oneshot
- A systemd ``type`` where a command is defined in ``ExecStart`` which will
- exit upon completion (it is not intended to daemonize)
+ A systemd ``type`` where a command is defined in ``ExecStart``
+ which will exit upon completion (it is not intended to
+ daemonize)
- LVM tags
- Extensible metadata for LVM volumes and groups. It is used to store
- Ceph-specific information about devices and its relationship with
- OSDs.
+ Teuthology
+ The collection of software that performs scripted tests on Ceph.
.. _https://github.com/ceph: https://github.com/ceph
.. _Cluster Map: ../architecture#cluster-map
projects / ceph.git / commitdiff