static public FileSystem get(Configuration conf) throws IOException {
    return new HFileSystem(conf, true);
  }
Create a new HFileSystem object, similar to FileSystem.get(). This returns a filesystem object
that avoids checksum verification in the filesystem for hfileblock-reads. For these blocks,
checksum verification is done by HBase.
hbase-server/src/main/java/org/apache/hadoop/hbase/fs/HFileSystem.java