Question: I need to quickly bounce my RAC
cluster and I wonder which is faster, using "crs stop
cluster" or "crs stop crs". Which
of these commands is
faster?
Answer: In 11gR2 and beyond, you can start the HA
Service Daemon (OHASD) and Clusterware stack in two ways:
Approach 1 - a single step process
$ crsctl
start crs
*****************************************************
Approach 2 - Start it in a two-step process.
Here we start the HA service (HAS):
$
crsctl start has
then, you start the clusterware
stack by with crsctl start cluster:
$ crsctl start
cluster -all
*****************************************************
Which is faster? Who knows? Try it on your cluster and see
my notes on
using the crsctl command.
Also see
my notes on crsctl
modify resource commands.