Question & Answer
Question
为什么在发生自动切换时候，HADR+TSA方案总是采用TAKEOVER HADR BY FORCE PEER WINDOW ONLY？
Answer
1）为了保证TSA发起的takeover必须成功，BY FORCE是必须的
2）为了尽可能防止数据丢失，需要使用PEER WINDOW ONLY（即需要将HADR_PEER_WINDOW设为非零值），也是因为同样的原因，该方案只支持SYNC和NEARSYNC两种模式
[{"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"High Availability - HADR","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"9.8;9.7;10.1;10.5","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
Was this topic helpful?
Document Information
Modified date:
16 June 2018
UID
swg21981085