57 lines
1.6 KiB
ReStructuredText
57 lines
1.6 KiB
ReStructuredText
==============================
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Using accelerators with Cyborg
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==============================
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Starting from microversion 2.82, nova supports creating servers with
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accelerators provisioned with the Cyborg service, which provides lifecycle
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management for accelerators.
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To launch servers with accelerators, the administrator (or an user with
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appropriate privileges) must do the following:
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* Create a device profile in Cyborg, which specifies what accelerator
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resources need to be provisioned. (See `Cyborg device profiles API
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<https://docs.openstack.org/api-ref/accelerator/v2/index.html#device-profiles>`_.
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* Set the device profile name as an extra spec in a chosen flavor,
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with this syntax:
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.. code::
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accel:device_profile=$device_profile_name
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The chosen flavor may be a newly created one or an existing one.
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* Use that flavor to create a server:
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.. code::
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openstack server create --flavor $myflavor --image $myimage $servername
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As of 21.0.0 (Ussuri), nova supports only specific operations for instances
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with accelerators. The lists of supported and unsupported operations are as
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below:
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* Supported operations.
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* Creation and deletion.
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* Reboots (soft and hard).
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* Pause and unpause.
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* Stop and start.
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* Take a snapshot.
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* Backup.
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* Rescue and unrescue.
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* Unsupported operations
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* Rebuild.
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* Resize.
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* Evacuate.
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* Suspend and resume.
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* Shelve and unshelve.
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* Cold migration.
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* Live migration.
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Some operations, such as lock and unlock, work as they are effectively
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no-ops for accelerators.
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