Usage of SRVCTL and CRSCTL in Oracle RAC

July 05, 2019  

SRVCTL:

Use SRVCTL to manage Oracle supplied resources such as

·                     Listener

·                     Instances

·                     Disk groups

·                     Networks

srvctl is used to manage the elements of the cluster like databases, instances, listeners, services etc.

srvtcl was introduced with Oracle 9i.

If resource name begins with ora then use SRVCTL.

Oracle suggests DBAs to use srvctl command to start the databases.

SRVCTL manages Oracle resource related operations:

·                     Starting and stopping database instances and services

·                     Also from 11gR2 manages the cluster resources like network, vip, disks etc

We can use the SRVCTL to manage configuration information.  Use SRVCTL commands to add, remove, start, stop, modify, enable, and disable a number of entities, such as Databas ES, instances, listeners, SCAN listeners, services, grid naming Service (GNS), and Oracle ASM.

CRSCTL:

Use CRSCTL for managing Oracle Clusterware and its resources.

crsctl command is used to manage the elements of the clusterware like crs, css, evm.

crsctl was introduced with Oracle 10g.

CRSCTL manages Oracle Clusterware related operations like:

·                     Starting and stopping Oracle Clusterware

·                     Enabling and disabling Oracle Clusterware daemons

·                     Checking the health of the cluster

·                     Registering cluster resources