44ebdd2252
CG APIs work as follows:
* Create CG - Create only in groups table
* Modify CG - Modify in CG table if CG in CG table, otherwise modify
in groups table.
* Delete CG - Delete from CG or groups table depending on where it is
* List CG - Check both CG and groups tables
* List CG snapshots - Check both CG and groups tables
* Show CG - Check both tables
* Show CG snapshot - Check both tables
* Create CG snapshot - Create either in CG or groups table depending on
the CG.
* Create CG from source - Create in either CG or groups table
depending on the source.
* Create volume - Add volume either to CG or group
Additional notes:
* default_cgsnapshot_type is reserved for migrating CGs.
* Group APIs will only write/read in/from the groups table.
* Group APIs won't work on groups with default_cgsnapshot_type.
* Groups with default_cgsnapshot_type can only be operated by CG APIs.
* After CG tables are removed, we'll allow default_cgsnapshot_type
to be used by group APIs.
Partial-Implements: blueprint generic-volume-group
Change-Id: Idd88a5c9587023a56231de42ce59d672e9600770
30 lines
1.2 KiB
YAML
30 lines
1.2 KiB
YAML
---
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upgrade:
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- |
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After running the migration script to migrate CGs to
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generic volume groups, CG and group APIs work as follows.
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* Create CG only creates in the groups table.
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* Modify CG modifies in the CG table if the CG is in the
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CG table, otherwise it modifies in the groups table.
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* Delete CG deletes from the CG or the groups table
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depending on where the CG is.
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* List CG checks both CG and groups tables.
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* List CG Snapshots checks both the CG and the groups
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tables.
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* Show CG checks both tables.
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* Show CG Snapshot checks both tables.
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* Create CG Snapshot creates either in the CG or the groups
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table depending on where the CG is.
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* Create CG from Source creates in either the CG or the
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groups table depending on the source.
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* Create Volume adds the volume either to the CG or the
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group.
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* default_cgsnapshot_type is reserved for migrating CGs.
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* Group APIs will only write/read in/from the groups table.
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* Group APIs will not work on groups with default_cgsnapshot_type.
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* Groups with default_cgsnapshot_type can only be operated by
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CG APIs.
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* After CG tables are removed, we will allow default_cgsnapshot_type
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to be used by group APIs.
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