ORA-07286: sksagdi: cannot obtain device information

Error:

RMAN-00571: 
==============

RMAN-00569: 
=============== 
ERROR MESSAGE STACK FOLLOWS 
===============

RMAN-00571: ========================================

RMAN-03002: failure of restore command at 04/23/2013 18:27:34

ORA-19870: error while restoring backup piece archive_3840_1_813515387

ORA-07286: sksagdi: cannot obtain device information.

Linux-x86_64 Error: 2: No such file or directory

ORA-30012: undo tablespace 'UNDOTBS2' does not exist or of wrong type

Error:

SQL> startup

ORACLE instance started.

Total System Global Area 2221395968 bytes

Fixed Size                                2230272 bytes

Variable Size                      1325402112 bytes

Database Buffers               889192448 bytes

Redo Buffers                         4571136 bytes

Database mounted.

ORA-01092: ORACLE instance terminated. Disconnection forced

ORA-30012: undo tablespace 'UNDOTBS2' does not exist or of wrong type

Process ID: 23812

Session ID: 3 Serial number: 3

ORA-15021: parameter "remote_dependencies_mode" is not valid in asm instance

Error:

RMAN-00554: initialization of internal recovery manager package failed
RMAN-12001: could not open channel default
RMAN-10008: could not create channel context
RMAN-10002: ORACLE error: ORA-15021: parameter "remote_dependencies_mode" is not valid in asm instance
RMAN-10006: error running SQL statement: alter session set remote_dependencies_mode = signature

When: While trying to connect to rman using rman target /

ORA-01156: recovery or flashback in progress may need access to files

Error:

ORA-01156: recovery or flashback in progress may need access to files

When: While adding standby redo log files in standby database

Solution:

PRVF-9652 : Cluster Time Synchronization Services check failed

Error:

NTP daemon slewing option check failed on some nodes
Check failed on nodes:
PRVF-5436 : The NTP daemon running on one or more nodes lacks the slewing option "-x"
Clock synchronization check using Network Time Protocol(NTP) failed
PRVF-9652 : Cluster Time Synchronization Services check failed

When :

Error at cluster verification check while installing 11g Grid Infrastructure (11.2.0.3) on Linux

Analysis:

During GI installation cluster verification has failed without showing much details in GUI. So $GRID_HOME/cfgtoollogs/oui/installActions*.log has been mined and found cluster verification check failure errors .  

Installation did not impacted due to this error, after closing GUI which has shown partial successful completion of installation cluster verification has been invoked manually as below to verify the root cause


$cluvfy stage -post crsinst -n inpudicrmrdbprtrpt1,inpudicrmrdbprtrpt2