OS boot Ohasd1,exec /etc/init.d/init.ohasd run >/dev/null 2>&1 </dev/nullcat /etc/init/oracle-ohasd.conf# Copyright (c) 2001, 2011, Oracle and/or Its affiliates. all rights reserved. ## oracle ohasd startupstart on runlevel [35]stop on runlevel [!35]respawnexec /etc/init.d/ Init.ohasd run >/dev/null 2>&1 </dev/null2, Init.ohasd.run is started, the process is responsible for starting the Ohasd.bin daemon 3,ohasd.bin process is started OHASD will start 4 agent processes: Orarootagent,oraagent,cssdagent,cssdmonitor (Level 1) Ohas The 4 agent processes started by D start the cluster's initialization resource (Level 2) orarootagent: Start Ora.crsd,ora.ctssd,ora.cluster_ Interconnect.hai,ora.crforaagent: Start ora.asm,ora.evmd,ora.gipcd,ora.gpnpd,ora.mdnsdcssdagent: Start Ora.cssdcssdmonitor: Start Ora.cs SDMONITORCRSD will start 3 agent processes: Oraagent_root,oraagent_grid,oraagent_ Oracle (Level 3) Orarootagent: This agent process is responsible for managing CRSD resources running as root oraagent: This agent will have two, each of which is responsible for managing the grid, Oracle Identity runs the CRSD resource CRSD starts the 3 agent processes that start the CRSD tubesuch as database, Listener (Level 4) Oraagent_root: Start ora.net1.network,ora.< node name >.vip,ora.scan<x>.vip oraagent_grid: Start the ora.asm,ora.< disk group name >.DG, ora.ons,ora.< node name >.lsnr,ora.<scan_listener>.lsnroraagent_oracle: Start ora.< database name >.db,ora.< database name >.< Service Name >svc
Oracle Grid Infrastructure startup process
