TIP 117#: Access to ODA ILOM is challenging ?

New ODA is configured with ILOM IPs and network cable is plugged to Netmgt port. Everything is ready for connecting to the server via ILOM and bummer!, you may see the whole connection or at least the connection to remote console does not work as it is expected.

The following item could come handy to troubleshoot and fix the issue:

ILOM client requirements:

Per the following link, the client access should meet certain requirement.

I found that having right Java and registering it in browser are the key.
For new ODA (X5-2), per 888888.1, consider upgrading Java to 7 to avoid bug 20420055

After you make all necessary changes per above requirement, you may still have some problem connecting to remote console.
The following two issues are reported on several customers which we have :

Issue : ILOM remote console is blocked by rule set

Solution : The simplest solution is to remove rule set file - The file is C:\Windows\Sun\Java\Deployment\DeploymentRuleSet.jar and it is not dependent on where Java is installed.
If the issue still stays, consider setting Java security level to medium in Java control panel (in windows in Windows control panel)

Issue : ILOM remote console errors out with "Video redirection error - no appropriate protocol found"

Solution: Comment out jdk.tls.disabledAlgorithms=SSLv3 in JAVA_folder/lib/security/ and restart the browser

TIP 116# : Oracle Database Appliance - 3 Observations and 3 Resolutions

During last couple weeks, I have been involved in various ODA activities from patching of an existing ODA to latest version to setting up new environments on ODA X5-2
I thought to share some lesson learnt :
1)  Patch failure
If you encounter in a situation which ODA patch fails and reports the following error
Unable to get the nodenumber in the chassis
The resolution is to create /opt/oracle/oak/conf/node_num.conf on each compute node and add NODENUM=0 or NODENUM=1.
2) Network issue
If you setup new ODA and in the first boot, it should ask for fiber or copper connection and after providing the right option, ODA will keep the appropriate driver and will remove unnecessary drivers. If you do not see it in any new ODA x3-2 onwards when it is booted for the first time, you may see issue with setting up network later.
To fix the issue, before further progress with deployment and setting up environment, run /opt/oracle/oak/lib/

3)  Some oakcli commands fail
You may notice that some oakcli commands fail with the following error:

OAKERR:6000 Exception encountered in Module getMasterNode
OAKERR:6002 No master node was found

This cause usually could be that the process cannot connect to oakd daemon on ODA. 
You could confirm this with running
oakcli show ismaster
If this command fails, it could be fixed by bouncing oakd using oakcli. As long as oakcli show ismaster does not work well, you may experience failure of some oakcli commands. 

TIP 115# : DataGuard and Patch

Starting 11.2, Oracle introduced Standby-First Patch Apply which provides support between different software releases in the primary and standby. In other words, for certified Oracle patches, it allows the customer to apply/validate the patch first on the standby software while the primary stays in the previous software release. Also it enabled the customer to switch over between primary and standby in the mixed software version.
Patch README should provide the details on whether or not the patch is certified for standby-first patch apply. According to Oracle doc or Oracle Patch Assurance - Data Guard Standby-First Patch Apply (Doc ID 1265700.1), the following patches are certified for standby-first patch apply.
  • Exadata Database Bundle Patch
  • Patch Set Update (PSU)
  • Critical Patch Update (CPU)
  • Interim (“one-off”) patches
Make sure to keep compatible between primary and standby the same during the patching. It is noted that mixed version cannot be run for more than 31 days (possibly support issue if it goes beyond) and it is only viable for the patches which are not more than 1 year apart. So to be enable to utilize this feature, the following conditions should meet :

  • Software is 11.2 on-wards
  • Patch is determined explicitly in readme to be Standby-First Patch apply
  • Mixed version can only be run less than 31 days
  • The qualified patch should not be more than 1 year apart from the current primary/standby run.

TIP 114# : All about RAC

If you are starting with new RAC setup or you have a RAC environment and you are looking for performance tuning, stabilization of the environment or even upgrade, the following document comes very handy :

RAC and Oracle Clusterware Best Practices and Starter Kit (Platform Independent) (Doc ID 810394.1)

TIP 113# : Documents for Oracle licensing

If you negotiate with Oracle on licensing or design/architect a solution for a customer, the following documents may come handy :