527fb2f258
Enable drbd-devstack automatically when the plugin is installed, no need to do this with an extra command. Change-Id: I48dbc31908c4c42112bc57ce8211ff211799ae0c
30 lines
979 B
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30 lines
979 B
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=============
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drbd-devstack
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=============
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DRBD installation helper for DevStack.
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* Free software: Apache license
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This plugin helps to install the DRBD backend for Cinder
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(and, later on, Nova) in a devstack install.
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Usage
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-----
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Put some lines similar to these in your `local.conf`:
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enable_plugin drbd-devstack git://git.openstack.org/openstack/drbd-devstack
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CINDER_ENABLED_BACKENDS=drbd:drbdmanage
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A few environment variables can be set to modify the behaviour:
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* `CINDER_DRBD_NO_STORAGE` means `--no-storage`
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* `CINDER_DRBD_NO_CV` gets translated to `--no-control-volume`.
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This is allowed only for additional nodes, and not the initial drbdmanage node that *has* to create a control volume.
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* `CINDER_DRBD_USE_DRBD_PROTOCOL` makes the driver use the DRBD protocol to provide storage to the Nova nodes.
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Secondary nodes are detected by having `$SERVICE_HOST` unequal to `$HOST_IP`, and therefore register themselves as additional nodes in drbdmanage.
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