Oracle 11gR2 clusterware启动顺序

从1gR2起Oracle引入init.ohasd，将其配置在/etc/inittab中，用以启动和管理clusterware相关资源Pre 11R2/etc/inittabh1:2:respawn:/etc/init.evmd run >/dev/null 2>&1 </dev/nullh2:2:respawn:/etc/init.cssd fatal >/dev/null 2>&1 </dev/nullh3:2:respawn:/etc/init.crsd run >/dev/null 2>&1 </dev/null$ who -r . run-level 2 Jan 22 05:49 2 0 S11R2/etc/inittabh1:2:respawn:/etc/init.ohasd run >/dev/null 2>&1 </dev/nulloracle> who -r . run-level 2 Jul 03 07:52 2 0 S clusterware资源大致可分为4级，其相应启动顺序如下：先由INIT启动init.ohasd，后者再启动相应的4个进程，然后按顺序依次启动Level 1: OHASD Spawns:cssdagent - Agent responsible for spawning CSSD.
orarootagent - Agent responsible for managing all root owned ohasd resources.
oraagent - Agent responsible for managing all oracle owned ohasd resources.
cssdmonitor - Monitors CSSD and node health （along wth the cssdagent）.
Level 2: OHASD rootagent spawns:CRSD - Primary daemon responsible for managing cluster resources.
CTSSD - Cluster Time Synchronization Services Daemon
Diskmon
ACFS （ASM Cluster File System） Drivers
Level 2: OHASD oraagent spawns:MDNSD - Used for DNS lookup
GIPCD - Used for inter-process and inter-node communication
GPNPD - Grid Plug & Play Profile Daemon
EVMD - Event Monitor Daemon
ASM - Resource for monitoring ASM instances
Level 3: CRSD spawns:orarootagent - Agent responsible for managing all root owned crsd resources.
oraagent - Agent responsible for managing all oracle owned crsd resources.
Level 4: CRSD rootagent spawns:Network resource - To monitor the public network
SCAN VIP（s） - Single Client Access Name Virtual IPs
Node VIPs - One per node
ACFS Registery - For mounting ASM Cluster File System
GNS VIP （optional） - VIP for GNS
Level 4: CRSD oraagent spawns:ASM Resouce - ASM Instance（s） resource
Diskgroup - Used for managing/monitoring ASM diskgroups.
DB Resource - Used for monitoring and managing the DB and instances
SCAN Listener - Listener for single client access name, listening on SCAN VIP
Listener - Node listener listening on the Node VIP
Services - Used for monitoring and managing services
ONS - Oracle Notification Service
eONS - Enhanced Oracle Notification Service
GSD - For 9i backward compatibility
GNS （optional） - Grid Naming Service - Performs name resolution
调用crsctl status resource –t可以查看所有component的状态参考文档ID 1053147.1ORA-00600 的一次故障排除实战Oracle并行进程小结相关资讯 Oracle 11gR2

CentOS 7上安装Oracle 11gR2 全程（07月25日）
RHEL 6.5 安装Oracle 11gR2 （06月11日）
Oracle 11gR2中的自动并行度（04月18日）

CentOS 无图形化安装Oracle 11gr2 （07月07日）
CentOS7安装Oracle 11gR2 图文详解（04月23日）
CentOS6.5下设置Oracle 11gR2 开机（12/19/2015 11:10:33）

本文评论查看全部评论（0）