安装华为GaussDB 100目录至少需要20G空间

在安装华为GaussDB 100 时执行python install.py报错如下：

[root@pr7 GaussDB_100_1.0.0-DATABASE-REDHAT-64bit]#  python install.py -U omm:dbgrp -R /opt/gaussdb/app -D /opt/gaussdb/data -C  LSNR_ADDR=127.0.0.1,192.168.56.102 -C LSNR_PORT=1888
Checking runner.
Checking parameters.
End check parameters.
Checking user.
End check user.
Checking old install.
End check old install.
Checking kernel parameters.
Checking directory.
Error: The sum of database program and data directories available size smaller than 20580M, current size is: 12825M
Please refer to install log "/home/omm/zengineinstall.log" for more detailed information.

从报错可以看出，安装华为GaussDB 100 目录至少需要20G的空间。