diskReserveFraction = 0.15

	// diskAssumeUnknownSize is the size to assume when an unknown size upload is requested.
	diskAssumeUnknownSize = 1 << 30

	// diskMinInodes is the minimum number of inodes we want free on a disk to perform writes.
	diskMinInodes = 1000

	// tlsClientSessionCacheSize is the cache size for client sessions.
	tlsClientSessionCacheSize = 100
)

func init() {

	perDisk := size / int64(nDisks)
	for _, disk := range di {
		if disk == nil || disk.Total == 0 {
			continue
		}
		if !globalIsErasureSD && disk.FreeInodes < diskMinInodes && disk.UsedInodes > 0 {
			// We have an inode count, but not enough inodes.
			return false, nil
		}
		if int64(disk.Free) <= perDisk {
			return false, nil
		}
	}