Troubleshoot 'ora.ctssd' RAC services 'OBSERVER' status in Oracle 11gR2

-- Troubleshoot 'ora.ctssd' RAC services 'OBSERVER' status
-- In Oracle 11gR2
-- crsctl status resource -t -init in 11.2.0.2 grid infrastructure

-- Some times it may lead scan listener bounce

-- Status when issue found

$ crsctl status res -t -init
ora.ctssd
1 ONLINE ONLINE prddb1 OBSERVER

Node:2
$ crsctl status res -t -init

ora.ctssd
1 ONLINE ONLINE prddb2 OBSERVER

-- Issue find and troubleshoot

-- Collect all resource status and re-look

$ crsctl stat res -p

Rename '/etc/ntp.conf' file or moved to any other location to change "ora.ctssd" status to "online" in both nodes.
After change, now check

$ crsctl status res -t -init
ora.ctssd
      1        ONLINE  ONLINE       prddb1                    ACTIVE:0

Node:2
$ crsctl status res -t -init
ora.ctssd
      1        ONLINE  ONLINE       prddb2                    ACTIVE:0

-- Why ntp.conf not required some scenarios:

NTP (Network Time Protocol) is automatically configured and enabled to ensure time synchronization. Oracle VM automatically configures Oracle VM Manager as the NTP source for all Oracle VM Servers under its control.


- Configuring the NTP Service
To provide time services to the Oracle VM Servers, NTP must first be installed and configured on the Oracle VM Manager host server. Make sure that your Oracle VM Manager host is either registered with the Unbreakable Linux Network (ULN) or configured to use Oracle's public YUM service.

for details follow from Oracle document
link : http://docs.oracle.com/cd/E26996_01/E18548/html/manager_ntpconfig.html
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