proxmox-backup/docs/glossary.rst
Stoiko Ivanov 9634ca07db docs: add remotes and sync-jobs and schedules
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
2020-07-09 15:04:26 +02:00

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Glossary
========
.. glossary::
`Virtual machine`_
A virtual machine is a program that can execute an entire
operating system inside an emulated hardware environment.
`Container`_
A container is an isolated user space. Programs run directly on
the host's kernel, but with limited access to the host resources.
Datastore
A place to store backups. A directory which contains the backup data.
The current implemenation is file-system based.
`Rust`_
Rust is a new, fast and memory-efficient system programming
language. It has no runtime or garbage collector. Rusts rich type
system and ownership model guarantee memory-safety and
thread-safety. I can eliminate many classes of bugs
at compile-time.
`Sphinx`_
Is a tool that makes it easy to create intelligent and
beautiful documentation. It was originally created for the
documentation of the Python programming language. It has excellent facilities for the
documentation of software projects in a range of languages.
`reStructuredText`_
Is an easy-to-read, what-you-see-is-what-you-get plaintext
markup syntax and parser system.
`FUSE`
Filesystem in Userspace (`FUSE <https://en.wikipedia.org/wiki/Filesystem_in_Userspace>`_)
defines an interface which makes it possible to implement a filesystem in
userspace as opposed to implementing it in the kernel. The fuse
kernel driver handles filesystem requests and sends them to a
userspace application.
Remote
A remote Proxmox Backup Server installation and credentials for a user on it.
You can pull datastores from a remote to a local datastore in order to
have redundant backups.
Schedule
Certain tasks, for example pruning and garbage collection, need to be
performed on a regular basis. Proxmox Backup Server uses a subset of the
`systemd Time and Date Specification
<https://www.freedesktop.org/software/systemd/man/systemd.time.html#>`_.
The subset currently supports time of day specifications and weekdays, in
addition to the shorthand expressions 'minutely', 'hourly', 'daily'.
There is no support for specifying timezones, the tasks are run in the
timezone configured on the server.