public void setTotalBytesOnDisk(long totalBytesOnDisk) {
    this.totalBytesOnDisk = totalBytesOnDisk;
  }
Sets the total number of bytes of space that have been used.

@param totalBytesOnDisk the total number of bytes of space that have been used
geode-core/src/main/java/org/apache/geode/management/DiskMetrics.java