TFA Collector in Oracle RAC

LOGIN as root
. oraenv
+ASM
cd $ORACLE_HOME/tfa
$GI_HOME/tfa/bin/tfactl diagcollect -from "Nov/27/2017 02:00:00" -to "Nov/27/2017 08:00:00" 

Date and time format example: "Jul/1/2014 21:00:00" 
Specify the "from time" to be 4 hours before and the "to time" to be 4 hours after the time of error. 

Script to generate ASM Full Path Alias Directory

spool asm<#>_full_path_alias_directory.html
-- ASM VERSIONS 10.1, 10.2, 11.1, 11.2, 12.1 & 12.2
SET MARKUP HTML ON
set echo on

set pagesize 200

alter session set nls_date_format='DD-MON-YYYY HH24:MI:SS';

select 'THIS ASM REPORT WAS GENERATED AT: ==)> ' , sysdate " "  from dual;


select 'HOSTNAME ASSOCIATED WITH THIS ASM INSTANCE: ==)> ' , MACHINE " " from v$session where program like '%SMON%';

SELECT CONCAT('+'||GNAME, SYS_CONNECT_BY_PATH(ANAME, '/'))
 FULL_PATH, SYSTEM_CREATED, ALIAS_DIRECTORY, FILE_TYPE
 FROM ( SELECT B.NAME GNAME, A.PARENT_INDEX PINDEX,
 A.NAME ANAME, A.REFERENCE_INDEX RINDEX,
 A.SYSTEM_CREATED, A.ALIAS_DIRECTORY,
 C.TYPE FILE_TYPE
 FROM V$ASM_ALIAS A, V$ASM_DISKGROUP B, V$ASM_FILE C
 WHERE A.GROUP_NUMBER = B.GROUP_NUMBER
 AND A.GROUP_NUMBER = C.GROUP_NUMBER(+)
 AND A.FILE_NUMBER = C.FILE_NUMBER(+)
 AND A.FILE_INCARNATION = C.INCARNATION(+)
 )
 START WITH (MOD(PINDEX, POWER(2, 24))) = 0
 CONNECT BY PRIOR RINDEX = PINDEX;


spool off

exit

Script to generate ASM Files & ASM Alias

spool asm<#>_alias+files.html
-- ASM VERSIONS 10.1, 10.2, 11.1, 11.2, 12.1 & 12.2
SET MARKUP HTML ON
set echo on

set pagesize 200

COLUMN BYTES FORMAT  9999999999999999

alter session set nls_date_format='DD-MON-YYYY HH24:MI:SS';

select 'THIS ASM REPORT WAS GENERATED AT: ==)> ' , sysdate " "  from dual;


select 'HOSTNAME ASSOCIATED WITH THIS ASM INSTANCE: ==)> ' , MACHINE " " from v$session where program like '%SMON%';

select * from v$asm_alias;

select * from v$asm_file;

show parameter asm
show parameter cluster
show parameter instance_type
show parameter instance_name
show parameter spfile

show sga

spool off

exit


NOTE - Taken from Doc  ID 470211.1

Script to extract Generic ASM metadata

SPOOL ASM<#>_GENERIC_ASM_METADATA.html
-- ASM VERSIONS 10.1, 10.2, 11.1, 11.2, 12.1 & 12.2
SET MARKUP HTML ON
SET ECHO ON

SET PAGESIZE 200

ALTER SESSION SET NLS_DATE_FORMAT='DD-MON-YYYY HH24:MI:SS';

SELECT 'THIS ASM REPORT WAS GENERATED AT: ==)> ' , SYSDATE " " FROM DUAL;
SELECT 'INSTANCE NAME: ==)> ' , INSTANCE_NAME " " FROM V$INSTANCE;

SELECT 'HOSTNAME ASSOCIATED WITH THIS ASM INSTANCE: ==)> ' , MACHINE " " FROM V$SESSION WHERE PROGRAM LIKE '%SMON%';

SELECT * FROM V$INSTANCE;

SELECT * FROM GV$INSTANCE;

SELECT * FROM V$ASM_DISKGROUP;

SELECT GROUP_NUMBER, DISK_NUMBER, MOUNT_STATUS, HEADER_STATUS, MODE_STATUS, STATE, OS_MB, TOTAL_MB, FREE_MB, NAME, FAILGROUP, PATH
FROM V$ASM_DISK ORDER BY GROUP_NUMBER, FAILGROUP, DISK_NUMBER;

SELECT * FROM V$ASM_DISK ORDER BY GROUP_NUMBER,DISK_NUMBER;

SELECT SUBSTR(D.NAME,1,16) AS ASMDISK, D.MOUNT_STATUS, D.STATE,
DG.NAME AS DISKGROUP FROM V$ASM_DISKGROUP DG, V$ASM_DISK D
WHERE DG.GROUP_NUMBER = D.GROUP_NUMBER;

SELECT * FROM V$ASM_CLIENT;

SELECT DG.NAME AS DISKGROUP, SUBSTR(C.INSTANCE_NAME,1,12) AS INSTANCE,
SUBSTR(C.DB_NAME,1,12) AS DBNAME, SUBSTR(C.SOFTWARE_VERSION,1,12) AS SOFTWARE,
SUBSTR(C.COMPATIBLE_VERSION,1,12) AS COMPATIBLE
FROM V$ASM_DISKGROUP DG, V$ASM_CLIENT C
WHERE DG.GROUP_NUMBER = C.GROUP_NUMBER;

SELECT * FROM V$ASM_ATTRIBUTE;

SELECT * FROM V$ASM_OPERATION;
SELECT * FROM GV$ASM_OPERATION;

SELECT * FROM V$VERSION;

SELECT * FROM V$ASM_ACFSSNAPSHOTS;
SELECT * FROM V$ASM_ACFSVOLUMES;
SELECT * FROM V$ASM_FILESYSTEM;
SELECT * FROM V$ASM_VOLUME;
SELECT * FROM V$ASM_VOLUME_STAT;

SELECT * FROM V$ASM_USER;
SELECT * FROM V$ASM_USERGROUP;
SELECT * FROM V$ASM_USERGROUP_MEMBER;

SELECT * FROM V$ASM_DISK_IOSTAT;
SELECT * FROM V$ASM_DISK_STAT;
SELECT * FROM V$ASM_DISKGROUP_STAT;

SELECT * FROM V$ASM_TEMPLATE;

SHOW PARAMETER

SHOW SGA

!echo "SELECT '" > /tmp/GPNPTOOL.SQL 2> /dev/null
! $ORACLE_HOME/bin/gpnptool get >> /tmp/GPNPTOOL.SQL 2>> /dev/null
!echo "' FROM DUAL;" >> /tmp/GPNPTOOL.SQL 2>> /dev/null
! cat /tmp/GPNPTOOL.SQL
SET ECHO OFF

--DISPLAYS INFORMATION ABOUT THE CONTENTS OF THE SPFILE.
SELECT * FROM V$SPPARAMETER ORDER BY 2;
SELECT * FROM GV$SPPARAMETER ORDER BY 3;

--DISPLAYS INFORMATION ABOUT THE INITIALIZATION PARAMETERS THAT ARE CURRENTLY IN EFFECT IN THE INSTANCE.
SELECT * FROM V$SYSTEM_PARAMETER ORDER BY 2;
SELECT * FROM GV$SYSTEM_PARAMETER ORDER BY 3;

-- 12C ACFS VIEWS

SELECT * FROM V$ASM_ACFS_ENCRYPTION_INFO;
SELECT * FROM V$ASM_ACFSREPL;
SELECT * FROM V$ASM_ACFSREPLTAG;
SELECT * FROM V$ASM_ACFS_SEC_ADMIN;
SELECT * FROM V$ASM_ACFS_SEC_CMDRULE;
SELECT * FROM V$ASM_ACFS_SEC_REALM;
SELECT * FROM V$ASM_ACFS_SEC_REALM_FILTER;
SELECT * FROM V$ASM_ACFS_SEC_REALM_GROUP;
SELECT * FROM V$ASM_ACFS_SEC_REALM_USER;
SELECT * FROM V$ASM_ACFS_SEC_RULE;
SELECT * FROM V$ASM_ACFS_SEC_RULESET;
SELECT * FROM V$ASM_ACFS_SEC_RULESET_RULE;
SELECT * FROM V$ASM_ACFS_SECURITY_INFO;
SELECT * FROM V$ASM_ACFSTAG;

-- 12C ASM AUDIT VIEWS

SELECT * FROM V$ASM_AUDIT_CLEAN_EVENTS;
SELECT * FROM V$ASM_AUDIT_CLEANUP_JOBS;
SELECT * FROM V$ASM_AUDIT_CONFIG_PARAMS;
SELECT * FROM V$ASM_AUDIT_LAST_ARCH_TS;

-- 12C ASM ESTIMATE VIEW

SELECT * FROM V$ASM_ESTIMATE;
SELECT * FROM GV$ASM_ESTIMATE;

SPOOL OFF

EXIT

from - How To Gather & Backup ASM/ACFS Metadata In A Formatted Manner version 10.1, 10.2, 11.1, 11.2, 12.1 and 12.2? (Doc ID 470211.1)

ONLINE RMAN Backup ON STANDBY

If backup is scheduled from Standby and database is read only with apply 

nohup rman target / cmdfile=ABC_bkp.sh log=ABC_bkp.log &

vi ABC_bkp.sh
run
{
ALLOCATE CHANNEL D1 DEVICE TYPE DISK;
ALLOCATE CHANNEL D2 DEVICE TYPE DISK;
ALLOCATE CHANNEL D3 DEVICE TYPE DISK;
ALLOCATE CHANNEL D4 DEVICE TYPE DISK;
ALLOCATE CHANNEL D5 DEVICE TYPE DISK;
backup incremental level 0 tag backup_db_level_0 format '/rman_backup/ABC_RESTORE/CHG0013712/dblevel0_%d.%s_%p_%t' database;
backup archivelog all format '/rman_backup/ABC_RESTORE/CHG0013712/arch_%d.%s_%p_%t';
backup current controlfile format '/rman_backup/ABC_RESTORE/CHG0013712/ctlfile_%d.%s_%p_%t';
release channel D1;
release channel D2;
release channel D3;
release channel D4;
release channel D5;
}

Query to find which user is consuming more UNDO tablespace

select s.sid, 
       s.username,
       sum(ss.value) / 1024 / 1024 as undo_size_mb
from  v$sesstat ss
  join v$session s on s.sid = ss.sid
  join v$statname stat on stat.statistic# = ss.statistic#
where stat.name = 'undo change vector size'
and s.type <> 'BACKGROUND'
and s.username IS NOT NULL
group by s.sid, s.username;