红帽全球峰会第 4 章 配置 SAP HANA 系统复制
您必须配置 SAP HANA 系统复制，然后才能在集群中配置 HANA 实例。按照 HANA 系统复制设置的 SAP 指南： SAP HANA System Replication：配置.
4.1. SAP HANA 系统复制设置的先决条件
复制链接链接已复制到粘贴板!
SAP HANA 配置
SAP HANA 必须同时在这两个节点上安装和配置。
主机名解析
两个系统都必须能够解析两个系统的 FQDN。为确保即使在没有 DNS 的情况下也可以解析 FQDN，您可以将它们放在 /etc/hosts 中。
SAP HANA 扩展系统的 /etc/hosts 条目示例：
[root]# cat /etc/hosts ... 192.168.0.11 node1.example.com node1 192.168.0.12 node2.example.com node2
[root]# cat /etc/hosts
...
192.168.0.11 node1.example.com node1
192.168.0.12 node2.example.com node2注意
如主机名 | SAP Help Portal 中所述，SAP HANA 仅支持带有小写字符的主机名。
SAP HANA log_mode
要使系统复制正常工作，您必须将 SAP HANA log_mode 变量设置为 normal，这是默认值。
以 HANA 管理用户身份 < sid>adm 在这两个节点上验证当前的 log_mode ：
rh1adm $ hdbsql -u system -p '<HANA_SYSTEM_PASSWORD>' -i ${TINSTANCE} \
"select value from "SYS"."M_INIFILE_CONTENTS" where key='log_mode'"
VALUE "normal"
1 row selected
rh1adm $ hdbsql -u system -p '<HANA_SYSTEM_PASSWORD>' -i ${TINSTANCE} \
"select value from "SYS"."M_INIFILE_CONTENTS" where key='log_mode'"
VALUE "normal"
1 row selected
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