code: protected void init() {
          try {
              // Initialize the current working segment
              _segment = _segmentManager.nextSegment();
              
              // Segment index buffer is enabled by default!
              _sib = _segmentManager.openSegmentIndexBuffer(_segment.getSegmentId());
              if(!_sibEnabled) _sib.markAsDirty();
              
              _log.info("Segment " + _segment.getSegmentId() + " online: " + _segment.getStatus());
          } catch(IOException ioe) {
              _log.error(ioe.getMessage(), ioe);
              throw new SegmentException("Instantiation failed due to " + ioe.getMessage());
          }
      }
docs: Initialize this SimpleDataArray after it is instantiated.