c7a2b21d7d
update the manila api-ref link and install-guide like use latest. Change-Id: I17b18630b5082935b71e29a9edb5e03e58610881
43 lines
1.9 KiB
ReStructuredText
43 lines
1.9 KiB
ReStructuredText
The share node can support two modes, with and without the handling of
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share servers. The mode depends on driver support.
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Option 1
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--------
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Deploying the service without driver support for share server management.
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In this mode, the service does not do anything related to networking. The
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operator must ensure network connectivity between instances and the NAS
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protocol based server.
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This tutorial demonstrates setting up the LVM driver which creates LVM volumes
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on the share node and exports them with the help of an NFS server that is
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installed locally on the share node. It therefore requires LVM and NFS packages
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as well as an additional disk for the ``manila-share`` LVM volume group.
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This driver mode may be referred to as ``driver_handles_share_servers = False``
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mode, or simply ``DHSS=False`` mode.
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Option 2
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--------
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Deploying the service with driver support for share server management. In
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this mode, the service runs with a back end driver that creates and manages
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share servers. This tutorial demonstrates setting up the ``Generic`` driver.
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This driver requires Compute service (nova), Image service (glance) and
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Networking service (neutron) for creating and managing share servers; and
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Block storage service (cinder) for creating shares.
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The information used for creating share servers is configured with the help of
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share networks.
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This driver mode may be referred to as ``driver_handles_share_servers = True``
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mode, or simply ``DHSS=True`` mode.
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.. warning::
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When running the generic driver in ``DHSS=True`` driver mode, the share
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service should be run on the same node as the networking service.
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However, such a service may not be able to run the LVM driver that runs
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in ``DHSS=False`` driver mode effectively, due to a bug in some
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distributions of Linux. For more information, see LVM Driver section in the
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`Configuration Reference Guide
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<http://docs.openstack.org/ocata/config-reference/shared-file-systems.html>`_.
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