pytest to reduce an already running storage pool / SR with specified device (disk & host) #309
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The test by reducing disk:
- Does not apply to "thin" type SR due to thin LVM limitations.
- Identifies disks used for LVM, chooses a disk and empty it.
- Once the disk is removed from LVM, linstor service is restarted to recognise the SR size change.
The test by reducing host:
- Selects a non master host to evacuate and eject from pool.
- Ensures that the host selected is not linstor-controller, if it is then moves the controller services to another host.
- Evacuates host selected, stops linstor services and unplugs PBD.
- Deletes selected node from linstor pool.
- Restarts services to recognise the SR size change.