0

I am trying to restore oracle RAC RAMN backup to another RAC where only software is installed. I am able to restore control files some how on "+DATA/..."

I have some doubt about RAC setup.

Que 1) What are +DATA, +FRA.

Que 2) I am so curious about exploring +DATA, +FRA ,how can i see content of it in linux?

Que 3)How to change oracle "+DATA/CDBRAC/ARCHIVELOG/2016_02_20" archive destination to local storage e.g. "/u02/archive/2016_02_20" during recovery?

because i am not able to startup mount because of below failure 

Oracle instance started
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of startup command at 02/25/2016 15:25:45
ORA-00205: error in identifying control file, check alert log for more info

I am pretty sure this is because there are no +DATA/DBRAC/ARCHIVELOG/2016_02_20 path on +DATA.

similar problem i was able to resolve in oracle single machine recovery to other location by creating required directory.

Dipak
  • 672
  • 3
  • 9
  • 26

1 Answers1

0

+DATA and +FRA are ASM Disk Groups, you can find out more about them by querying the catalog view v$asm_diskgroup.

You can see the contents of ASM Disk Groups with the asmcmd utility, e.g.

$ amscmd

ASMCMD> cd DATA

ASMCMD> ls
YOURDB1/
YOURDB2/

ASMCMD> cd YOURDB1/

ASMCMD> ls
CONTROLFILE/
DATAFILE/
ONLINELOG/
PARAMETERFILE/
TEMPFILE/
spfileYOURDB1.ora

The error you got is related to the control file, you can check the value of the control_files parameter with the SQL*Plus command show parameter control_files.

Marco Baldelli
  • 3,638
  • 1
  • 22
  • 29
  • I able to see one record with below query "select GROUP_NUMBER,NAME from v$asm_diskgroup;" as "1 DATA" But not able to see anything on "asmcmd" "ls" command – Dipak Feb 25 '16 at 13:02