Re: dbca and ASM

  • From: "Rajeev Prabhakar" <rprabha01@xxxxxxxxx>
  • To: Dave.Herring@xxxxxxxxxx
  • Date: Fri, 28 Sep 2007 17:17:38 -0400

Did you review metalink note 365428.1 ?


The Problem lies with Oracle Net configuration. If either of the following
parameters are set to anything other
than the default of "accepted" ,DBCA cannot communicate with the ASM
instance.

SQLNET.ENCRYPTION_SERVER = accepted
SQLNET.ENCRYPTION_CLIENT = accepted

The problem was with encryption type of "DES40".
After removing "DES40" from both SQLNET.ENCRYPTION_TYPES_CLIENT and
SQLNET.ENCRYPTION_TYPES_SERVER communication between DBCA and ASM was
re-established.

The problem is that  DES40 was specified as one of the encryption algorithms
and it doesn't play well with the jdbc
drivers. Per sections 5.1.2 of the 10.2 ASO guide, DES40 is not supported
for jdbc clients
 Pasted below* *is the solution that it suggests..
------------------------------------------------------------------------------------------------------------------------------------------------------

Remove DES40 from Encryption Types

Old settings:

SQLNET.ENCRYPTION_TYPES_CLIENT= (DES40, RC4_40, RC4_56, 3DES112, 3DES168,
AES256)
SQLNET.ENCRYPTION_TYPES_SERVER= (DES40, RC4_40, RC4_56, 3DES112, 3DES168,
AES256)

New settings that work:
SQLNET.ENCRYPTION_TYPES_CLIENT= (RC4_40, RC4_56, 3DES112, 3DES168, AES256)
SQLNET.ENCRYPTION_TYPES_SERVER= (RC4_40, RC4_56, 3DES112, 3DES168, AES256)
------------------------------------------------------------------------------------------------------------------------------------------------------

Rajeev



On 9/28/07, Herring Dave - dherri <Dave.Herring@xxxxxxxxxx> wrote:
>
> Folks,
>
> I'm trying to create a database on my RAC cluster with ASM.  This is on
> 10.2.0.3 and RHEL4 64bit.  ASM is up and running on both nodes (only
> 2-node cluster) and I've got valid diskgroups in each.  Checking crsstat it
> shows all services are up, as in ASM, LISTENER, gsd, ons, vip on both nodes.
>
> Now for creating a database.  I thought dbca would be the way.  But in the
> process, I believe step 7, I'm asked for the storage to use.  I pick ASM,
> then "next".  At this point I get the message: "DBCA could not startup the
> ASM instance configured on this node.  To proceed with database creation
> using ASM you ...".
>
> I can't figure out why dbca can't see my ASM instance.  I've tried setting
> ORACLE_SID=, ORACLE_SID=+ASM, ORACLE_SID=+ASM1 (local instance on this
> server of ASM), all run out of $ORACLE_HOME/bin, not
> $ORA_ASM_HOME/bin.  Each try gives me the same error.
>
> Any clue how to get dbca see your existing ASM instances?  Is there any
> way to find out what exactly is failing behind the scenes?  I've set tracing
> for dbca (-DTRACING.ENABLED=true -DTRACING.LEVEL=2 in the last line of
> dbca), but that doesn't output anything after first starting up.
>
> Any help would be GREATLY appreciated.  Thanks.
>
> Dave
>
>
> ___________________________________
> David C. Herring, DBA| A c x i o m Delivery Center Organization
> 630-944-4762office |630-430-5988 wireless|630-944-4989 fax
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