Important Daemons in RAC

Important daemons:

S.No	Component	11.1 Clusterware		11.2 Grid Infrastructure
		Linux Process	Comment	Linux Process	Comment
1	CRS	crsd.bin	Runs as root	crsd.bin	Runs as root
2	CSS	init.cssd, ocssd and ocssd.bin	Except for ocssd.bin, rest 2 run as root	ocssd.bin, cssdmonitor and cssdagent
3	EVM	evmd, evmd.bin and evmlogger	Evmd runs as root	evmd.bin and evmlogger.bin
4	ONS	ons
5	ONS/eONS			ons/eons	ONS is Oracle Notification Service. eONS is a Java Process.
6	OPROCD	oprocd	Runs as root and provides node fencing instead of hangcheck timer kernel module
7	RACG	racgmain and racgimon
8	CTSS			octssd.bin	Runs as root
9	Oracle Agent			oraagent.bin
10	Oracle Root Agent			orarootagent	Runs as root
11	Oracle High Availability Service			ohasd.bin	Runs as root through init.

GSD services offline in 11g R2

Question:  On my Oracle 11.2.0.4 RAC (2 nodes) installation gsd services are OFFLINE.  Is this obsolete for 11.2.0.4 (migrated from 9i) or it's indicating some problem?

[oracle@myora1 bin]$ ./crs_stat -t|grep gsd

Name                  Type Target  State   Host
------------------------------------------------------------
ora.myora1.gsd        application  OFFLINE OFFLINE
ora.myora2.gsd        application  OFFLINE OFFLINE
ora.gsd               ora.gsd.type OFFLINE OFFLINE

Answer:  The GSD has been replaced by the CRS in 11g, and in 11g, by default, the Global Services daemon (GSD) is disabled.

See MOSC note 429966.1 titled "GSD Is Used Only if 9i RAC Database is Present".

Just remove the gsd lines from your crs_stat command:

[oracle@myora1 bin]$ ./crs_stat -t|grep -v gsd

You can even make an alias to permanently remove the gsd output annoyance:
alias my_crs_stat = "crs_stat -t|grep -v gsd"