private static void addQuotas(final Connection connection, final byte[] rowKey,
    final byte[] qualifier, final Quotas data) throws IOException {
    Put put = new Put(rowKey);
    put.addColumn(QUOTA_FAMILY_INFO, qualifier, quotasToData(data));
    doPut(connection, put);
  }
Returns true if the support for quota is enabled
hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/QuotaUtil.java