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``1`` |
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otherwise. |
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Storage status
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++++++++++++++ |
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Storage collectors
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++++++++++++++++++
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The storage status collectors will be a series of data collectors |
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(drbd, rbd, plain, file) that will gather data about all the storage types |
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for the current node (this is right now hardcoded to the enabled storage |
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types, and in the future tied to the enabled storage pools for the nodegroup). |
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The storage collectors will be a series of data collectors |
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that will gather data about storage for the current node. The collection |
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will be performed at different granularity and abstraction levels, from |
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the physical disks, to partitions, logical volumes and to the specific |
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storage types used by Ganeti itself (drbd, rbd, plain, file). |
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The ``name`` of each of these collector will reflect what storage type each of |
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them refers to. |
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The ``category`` field of these collector will be ``storage``. |
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The ``kind`` field will be ``1`` (`Status reporting collectors`_). |
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The ``data`` section of the report will provide at least the following fields: |
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``free`` |
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The amount of free space (in KBytes). |
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``used`` |
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The amount of used space (in KBytes). |
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``total`` |
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The total visible space (in KBytes). |
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The ``kind`` field will depend on the specific collector. |
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Each specific storage type might provide more type-specific fields. |
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Each ``storage`` collector's ``data`` section will provide collector-specific |
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fields. |
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In case of error, the ``message`` subfield of the ``status`` field of the |
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report of the instance status collector will disclose the nature of the error |
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