app

const (
	// DefaultMinimumAllocationSizeBlock is the default minimum size for a block volume.
	// Derived from the usual physical extent size of 4Mi * 2 (for accommodating metadata)
	DefaultMinimumAllocationSizeBlock = "8Mi"
	// DefaultMinimumAllocationSizeXFS is the default minimum size for a filesystem volume with XFS formatting.
	// Derived from the hard XFS minimum size of 300Mi that is enforced by the XFS filesystem.
	DefaultMinimumAllocationSizeXFS = "300Mi"
	// DefaultMinimumAllocationSizeExt4 is the default minimum size for a filesystem volume with ext4 formatting.
	// Derived from the usual 4096K blocks, 1024 inode default and journaling overhead,
	// Allows for more than 80% free space after formatting, anything lower significantly reduces this percentage.
	DefaultMinimumAllocationSizeExt4 = "32Mi"
	// DefaultMinimumAllocationSizeBtrfs is the default minimum size for a filesystem volume with btrfs formatting.
	// Btrfs changes its minimum allocation size based on various underlying device block settings and the host OS,
	// but 200Mi seemed to be safe after some experimentation.
	DefaultMinimumAllocationSizeBtrfs = "200Mi"
)