Getting error 'could not locate ASM instance' when make copy of ASM VM

Question

Hi everyone,
I make virtual machine of OEL 5.7 with oracle 10.2.0.1 and successfully configured ASM instance. I am using vmware workstation.
Now when I make copy of this virtual machine and startup database, then I get the below error:
[oracle@oelinux ~]$ export ORACLE_SID=asmdb
[oracle@oelinux ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Sat Sep 29 01:10:26 2012
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup
ORA-01078: failure in processing system parameters
ORA-01565: error in identifying file '+ASMGROUP/asmdb/spfileasmdb.ora'
*ORA-17503: ksfdopn:2 Failed to open file +ASMGROUP/asmdb/spfileasmdb.ora*
ORA-15077: could not locate ASM instance serving a required diskgroup
So how can i solve this problem??
Note: I copy this VM using both copy/paste and clone option, but get this error both times.
Regards,
Khurram Bhatti

Answer 1

EdStevens wrote:
Khurram Shehzad wrote:
I add 3 SCSI vmware disks. and then use them as a raw device. no ASMLib is used.
I refer below tutorial
[http://www.oracle-base.com/articles/10g/asm-using-asmlib-and-raw-devices.php]
That tutorial picks up after you created the disks.
How did you create the virtual disks attatched to your vm? What are its properties - from VMWorksation's perspective.
How did you create the "copy" of the vm?
It depends on how you actually created the disks, at the vm level, not the partitioning and formatting at the vm's OS level. I've used Tim's tutorials myself on some other ASM related projects, and he typically has you create the ASM disks as 'sharable', which would mean they would not copy necessarily copy with the vm. I've not played around the with variants much, but I'm pretty sure what you are seeing is a result of either the way the disk was created in the original vm, or the way you made the copy of the vm, or both.
Take a look at the machine properties of the two vms in the VMWorkstation control panel, looking at the HDD definitions. Compare and contrast.Hi EdStevens,
My problem resolved with below steps. Thanks fro your replies.
export ORACLE_SID=+ASM
sqlplus sys as sysdba
Connected to an idle instance.
SQL> startup mount
SQL> alter system register;
SQL> exit
[oracle@oelinux ~]$ export ORACLE_SID=asmdb
[oracle@oelinux ~]$ sqlplus sys as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Regards,
Khurram