红帽全球峰会4.8. 创建限制
4.8.1. 为 ASCS 和 ERS 资源组创建 colocation 约束
复制链接链接已复制到粘贴板!
资源组 s4h_ASCS20_group 和 s4h_ERS29_group 应该尝试避免在同一节点上运行。组顺序很重要。
pcs constraint colocation add s4h_ERS29_group with s4h_ASCS20_group \ -5000
[root]# pcs constraint colocation add s4h_ERS29_group with s4h_ASCS20_group \
-50004.8.2. 为 ASCS 和 ERS 资源组创建顺序约束
复制链接链接已复制到粘贴板!
首选在 s4h_ERS29_group前启动 s4h_ASCS20_group
pcs constraint order start s4h_ASCS20_group then start \ s4h_ERS29_group symmetrical=false kind=Optional pcs constraint order start s4h_ASCS20_group then stop \ s4h_ERS29_group symmetrical=false kind=Optional
[root]# pcs constraint order start s4h_ASCS20_group then start \
s4h_ERS29_group symmetrical=false kind=Optional
[root]# pcs constraint order start s4h_ASCS20_group then stop \
s4h_ERS29_group symmetrical=false kind=Optional4.8.3. 为集群管理的 /sapmnt 资源创建顺序约束
复制链接链接已复制到粘贴板!
如果共享文件系统 /sapmnt 由集群管理，则以下限制可确保带有 ASCS 和 ERS SAPInstance 资源的资源组仅在文件系统可用后才启动。
pcs constraint order s4h_fs_sapmnt-clone then s4h_ASCS20_group pcs constraint order s4h_fs_sapmnt-clone then s4h_ERS29_group
[root]# pcs constraint order s4h_fs_sapmnt-clone then s4h_ASCS20_group
[root]# pcs constraint order s4h_fs_sapmnt-clone then s4h_ERS29_group
'%20d='M201.5%20305.5c-13.8%200-24.9-11.1-24.9-24.6%200-13.8%2011.1-24.9%2024.9-24.9%2013.6%200%2024.6%2011.1%2024.6%2024.9%200%2013.6-11.1%2024.6-24.6%2024.6zM504%20256c0%20137-111%20248-248%20248S8%20393%208%20256%20119%208%20256%208s248%20111%20248%20248zm-132.3-41.2c-9.4%200-17.7%203.9-23.8%2010-22.4-15.5-52.6-25.5-86.1-26.6l17.4-78.3%2055.4%2012.5c0%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.3%2024.9-24.9s-11.1-24.9-24.9-24.9c-9.7%200-18%205.8-22.1%2013.8l-61.2-13.6c-3-.8-6.1%201.4-6.9%204.4l-19.1%2086.4c-33.2%201.4-63.1%2011.3-85.5%2026.8-6.1-6.4-14.7-10.2-24.1-10.2-34.9%200-46.3%2046.9-14.4%2062.8-1.1%205-1.7%2010.2-1.7%2015.5%200%2052.6%2059.2%2095.2%20132%2095.2%2073.1%200%20132.3-42.6%20132.3-95.2%200-5.3-.6-10.8-1.9-15.8%2031.3-16%2019.8-62.5-14.9-62.5zM302.8%20331c-18.2%2018.2-76.1%2017.9-93.6%200-2.2-2.2-6.1-2.2-8.3%200-2.5%202.5-2.5%206.4%200%208.6%2022.8%2022.8%2087.3%2022.8%20110.2%200%202.5-2.2%202.5-6.1%200-8.6-2.2-2.2-6.1-2.2-8.3%200zm7.7-75c-13.6%200-24.6%2011.1-24.6%2024.9%200%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.1%2024.9-24.6%200-13.8-11-24.9-24.9-24.9z'/%3e%3c/svg%3e){kind=small}