Shared File Systems service overview
The OpenStack Shared File Systems service (manila) provides file storage to a
virtual machine. The Shared File Systems service provides an infrastructure
for managing and provisioning of file shares. The service also enables
management of share types as well as share snapshots if a driver supports
them.
The Shared File Systems service consists of the following components:
- manila-api
- A WSGI app that authenticates and routes requests throughout the Shared File
Systems service. It supports the OpenStack APIs.
- manila-data
- A standalone service whose purpose is to receive requests, process data
operations such as copying, share migration or backup, and send back a
response after an operation has been completed.
- manila-scheduler
- Schedules and routes requests to the appropriate share service. The
scheduler uses configurable filters and weighers to route requests. The
Filter Scheduler is the default and enables filters on things like Capacity,
Availability Zone, Share Types, and Capabilities as well as custom filters.
- manila-share
- Manages back-end devices that provide shared file systems. A manila-share
process can run in one of two modes, with or without handling of share
servers. Share servers export file shares via share networks. When share
servers are not used, the networking requirements are handled outside of
Manila.
- Messaging queue
- Routes information between the Shared File Systems processes.
For more information, see Configuration Reference Guide.
