ORA-15001: diskgroup "DG01" does not exist error in RSA Identity Governance & Lifecycle
2 years ago
Originally Published: 2018-02-20
Article Number
000041973
Applies To
RSA Product Set: Identity Governance & Lifecycle
RSA Product/Service Type: Appliance and Software Only
RSA Version/Condition: 6.x, 7.x
Issue
For the RSA Identity Governance & Lifecycle application, the Oracle database is used to store data.

On an RSA Appliance Oracle Automatic Storage Management (ASM) is used to manage the file storage for the Oracle database. A customer supported implementation of the Oracle database for RSA's Identity Governance & Lifecycle application may also use Oracle Automatic Storage Management (ASM) to manage the file storage for the Oracle database.

The following error may be reported by the Oracle database on RSA Identity Governance & Lifecycle startup: 
ORA-01078: failure in processing system parameters 
ORA-01565: error in identifying file '+DG01/AVDB/spfileAVDB.ora' 
ORA-17503: ksfdopn:2 Failed to open file +DG01/AVDB/spfileAVDB.ora 
ORA-15056: additional error message 
ORA-17503: ksfdopn:2 Failed to open file +DG01/avdb/spfileavdb.ora 
ORA-15001: diskgroup "DG01" does not exist or is not mounted 
ORA-06512: at line 4
Cause
These errors indicate that Oracle ASM is not running.  Please note that these errors are not the only symptoms that may be observed when Oracle ASM is not running.

One reason for Oracle ASM not running, is that the Linux operating system version may be different than that of the Oracle ASM driver.


Scenario on Red Hat Linux

The following commands show that the version of the Red Hat operating system is 423, but the version of the Red Hat oracleasm driver is 419.  This is a mismatch in versions that would cause Oracle ASM not to run. 
$ uname -a 
Linux test9.rsabuild.local 2.6.18-423.el5 #1 SMP Fri Sep 22 14:26:40 EDT 2017 x8 6_64 x86_64 x86_64 GNU/Linux 

$ cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 5.11 (Tikanga) 

$ rpm -qa | grep asm 
oracleasm-2.6.18-419.el5-2.0.5-2.el5 
oracleasm-support-2.1.8-1.el5 
oracleasmlib-2.0.4-1.el5
Resolution
On an RSA appliance, run the Appliance Updater. For more information about the Appliance Updater, please go to the RSA Identity Governance & Lifecycle Appliance Updater web page.

For a customer-supplied Oracle database, engage the Linux system administrator and have them revert either the operating system version or the oracleasm version back to their original version (i. e., when Oracle ASM was working). 

​Providing information about the various Linux software update tools (i. e., YaST or zypper) is beyond the scope of RSA Customer Support.
Notes

Important details about the oracleasm driver

The oracleasm driver is written by the operating system vendor.
  • On SUSE Linux Enterprise Server (SLES) the oracleasm driver is written by Novell (part of Micro Focus), and distributed with the SUSE Linux software.
  • On Red Hat Linux the oracleasm driver is written by Oracle, where Red Hat Linux is also referred to as Oracle Linux.
  • Any updates to this driver will be made available by the operating system vendor.
However, for an RSA Appliance, updates to the oracleasm driver are controlled by the Appliance Updater.  This is why on an RSA Appliance, the following drivers are not installed;
  • oracleasm-support
  • oracleasmlib
These drivers allow the oracleasm driver to be updated automatically by the Linux System Administrator.  By not installing these drivers, RSA is able to maintain the compatibility of the operating system version and the oracleasm driver version, and avoid problems such as reported in this article.

For more information about the Appliance Updater, please go to the RSA Identity Governance & Lifecycle Appliance Updater web page.
 

Relevant software links

oracleasm driver for SLES 11
oracleasm driver for SLES 11 is built and distributed by Novell. Please contact Novell for the driver.

For Database Administrators > ASMLib: Linux Drivers for Automatic Storage Management
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