在10g的rac中有crsd、ocssd、evmd,
在/etc/inittab文件里,可以看到关于/etc/init.d/init.evmd(init.crsd)等进程的启动,
而11g中,在inittab文件里只有:
h1:35:respawn:/etc/init.d/init.ohasd run >/dev/null 2>&1 </dev/null
| With Oracle Clusterware 11g Release 2 (11.2), cluster commands have been introduced that allow stopping the cluster stack on a remote note (as opposed to stopping it locally only with the commands listed above). In order to stop the cluster stack with the exception of the Oracle High Availability Services (OHAS, daemon OHASD), use : crsctl stop cluster -all #stops the cluster layer on all servers in the cluster crsctl stop cluster -n <nodename> #stops the cluster layer the named server |
| 在11g, ohasd包含了crsd、ocssd、evmd. 11g cluster分两层, lower stack和higher stack. ohasd负责启动lower stack的集群资源, crsd负责启动上层的集群资源. |
原文地址: http://www.itpub.net/forum.php?mod=viewthread&tid=1570165
本文介绍了Oracle Clusterware 11g Release 2的架构变化,详细解释了ohasd如何整合crsd、ocssd和evmd,并概述了11g中集群分层的概念及其启动流程。
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