MinAvailableSizeInMB

This parameter sets a lower limit on the available disk space that must be maintained on the mount point where the event store resides.

Default: 0

This optional parameter takes precedence over all other storage-size parameters, except for MaxEventStoreSizeInDocs.

This parameter determines how much free space to leave on the events data disk before purging warm partitions. If the condition is met, partitions are deleted from disk instead of converted into cold partitions