36 lines
1.8 KiB
ReStructuredText
36 lines
1.8 KiB
ReStructuredText
The share node can support two modes, with and without the handling of
|
|
share servers. The mode depends on driver support.
|
|
|
|
Option 1
|
|
--------
|
|
Deploying the service without driver support for share management.
|
|
In this mode, the service does not do anything related to networking. The
|
|
operator must ensure network connectivity between instances and the NFS
|
|
server. This tutorial demonstrates setting up the LVM driver to support this
|
|
driver mode. It requires LVM and NFS packages as well as an additional disk
|
|
for the ``manila-share`` LVM volume group. This driver
|
|
mode may be referred to as ``driver_handles_share_servers = False`` mode, or
|
|
simply ``DHSS=False`` mode.
|
|
|
|
Option 2
|
|
--------
|
|
Deploying the service with driver support for share management. In
|
|
this mode, the service runs with a back end driver that creates and manages
|
|
share servers. This tutorial demonstrates setting up the Generic driver.
|
|
This driver requires Compute (nova), Networking (neutron) and Block
|
|
storage (cinder) services for managing share servers. The information used for
|
|
creating share servers is configured with the help of share networks. This
|
|
option uses the generic driver with the handling of share servers capacity
|
|
and requires attaching the ``selfservice`` network to a router. This driver
|
|
mode may be referred to as ``driver_handles_share_servers = True`` mode, or
|
|
simply ``DHSS=True`` mode.
|
|
|
|
.. warning::
|
|
|
|
When running the generic driver in ``DHSS=True`` driver mode, the share
|
|
service should be run on the same node as the networking service.
|
|
However, such a service may not be able to run the LVM driver that runs
|
|
in ``DHSS=False`` driver mode effectively, due to a bug in some
|
|
distributions of Linux. For more information, see LVM Driver section in the
|
|
`Configuration Reference Guide
|
|
<http://docs.openstack.org/mitaka/config-reference/shared-file-systems.html>`_. |