Epic Goal

Currenlty, LVMS has a min PVC size of 1GiB. This should be changed to support sizes of  1 MiB via Design Proposal.

This Epic should achieve an accepted design that can be implemented in a separate Epic due to the scope size. 

Why is this important?

On a small edge device with limited storage (e.g. only 32GB sd card) in combination with lots of small PVCs, this could lead to a situation where a solution can not be deployed.

Thin provisioning does not really help, because just "by the book", the disk would be full.

Acceptance Criteria

• Release Technical Enablement - Provide necessary release enablement details and documents.
• Be able to create and bind a PVC with 10 MiB size if proposal is implemented.
• Acceptance from TopoLVM and Proposal being merged into upstream

Dependencies (internal and external)

• LVM does support LV with MB sizes.
• The issue seems to be the lvmd rest API, which requires Size in GB as INT, causing the size. See here where the rounding up happens.

Done Checklist

• CI - CI is running, tests are automated and merged.
• Release Enablement Feature Presented in OCPVE Sprint Call
• DEV - Upstream code and tests merged: https://github.com/topolvm/topolvm/pull/766
• DEV - Upstream documentation merged: N/A no visible change to customer
• DEV - Downstream build attached to advisory: <link to errata>
• QE - Test plans in Polarion: <link or reference to Polarion>
• QE - Automated tests merged: <link or reference to automated tests>
• DOC - Downstream documentation merged: N/A no visible change to customer