About three months ago I found a script named host_access_control.
The script provides the API to managing several host access and security settings. The script is available on Compute Nodes and Storage Cells since the Exadata Software Version 18.104.22.168.0. The utility is located in /opt/oracle.cellos/host_access_control. The script is not documented in the Exadata Documentation, but in the Super Cluster documentation.
The script called with the Option „-h“ displays the help:
Weiterlesen „Change the security settings on Exadata with the script host_access_control“
Some time I have the problem with the vies of the Top Activity Page in the Cloud Control:
The Graf shrink to left and you can see only the part of the picture:
Weiterlesen „Cloud Control: the Graph in the Performance Top Activity view shrinks to left“
Kernel-based Virtual Machine (KVM) provides a possibility to use the Oracle (or Redhat/CentOS) Linux kernel as a hypervisor.
In my example, I will configure the KVM virtualization on top of the guest vm running OEL 7.4. The guest VM is running on top of the VMWare Workstation 12.
To enable the virtualization layer select VM settings and navigate to the Processor settings. Enable the setting „Virtualize Intel VT-x/EPT or AMD-V/RVI.“
The Guest VM is now enabled for the using of the nested virtualization (such kvm). Start the Guest VM.
Install and configure KVM virtualization on the OEL 7.4 Linux
Weiterlesen „KVM Virtualization on top of the vmware workstation 12 guest vm‘s“
This document describes the upgrade of the GI from 12.1 to 12.2 with installation of the RU August 2017.
The Exadata consists of:
- Two db nodes: exadb1/exadb2
- Three cell servers
The software release of Exadata components:
Infiniband Software version: 2.2.6-2 (Juli 2017)
Storage cells version: 22.214.171.124.2.170714
DB node versioin: 126.96.36.199.2.170714
GI Version: 188.8.131.52.170418
RDBMS Version: 184.108.40.206.170418
The order of the action:
- Out of the place installation of the Grid Infrastructure 12.2 on all database servers
- Installation RU Patch August 2017 on all database servers
- Upgrade Gird Infrastructure to 12.2
Weiterlesen „Upgrade Grid Infrastructure 12.1 to 12.2 + Install the 2017 August Release Update (RU) on Exadata“
The high availability of applications in the WebLogic environment is realized by clustering. Managed servers in the cluster work together. The information about transactions is distributed cluster-wide. If a cluster member fails, another server takes over the tasks of the failed server and executes them. In this way, the applications are kept running without interruption.
The AdminServer is a single point of failure: if the server fails, the Domain is no longer administrable:
– Configuration changes cannot be performed
– The administration console is not available
The managed servers are still running and can continue to work, even if the AdminServer is not available: this requires the activation of MSI (Managed Server Independence) Mode.
How can the AdminSevrer be protected from failure? In this blogpost I will describe all the steps that are necessary to keep your server running safely.
Weiterlesen „How to configure the WebLogic AdminServer for High Availability“
This post focuses on the creation, configuration and tuning of an initial Forms & Reports 220.127.116.11.0 Domain on the OEL 7.2 Server.
The WebLogic Server is a necessary requirement, and must already be installed. For instruction how to install the WebLogic Server 18.104.22.168 please refer to my previous post: WebLogic Server 22.214.171.124.0: Installation on the Linux OEL 7: step by step instruction
The following tasks will be implemented:
- Preparing the Operating System for the installation of the WebLogic Server 126.96.36.199, Installation JDK 1.8 and the WebLogic Server 188.8.131.52:
- Creating of database schemas
- Installing and Configuring a Forms & Reports Domain
- Configuring of components
- Creating of Start & Stop scripts for the automatic start/stop of components
- Tuning and Troubleshooting
The Domain will be created on the one OEL 7.2 server: host03.example.com (IP 192.168.75.35)
Installation Forms & Reports 184.108.40.206
Weiterlesen „Oracle Forms & Reports 220.127.116.11.0: Create and Configure on the OEL 7.2 Server“
Kategorie Step by Step
This post describes the installation of the WebLogic Server Version 18.104.22.168.0
The following tasks are performed and described:
- Preparing the Operating System for the installation of the WebLogic Server 22.214.171.124
- Installation JDK 1.8 and the WebLogic Server 126.96.36.199
The installation will be proceeding on the Oracle Enterprise Linux 7.2: host03.example.com
Weiterlesen „WebLogic Server 188.8.131.52.0: Installation on the Linux OEL 7: step by step instruction“