Tag: solaris

11g Rac Installation Checklists

~ rajeevramdas@aol.com ~ Leave a comment

In my numerous engagements with customers, assisting them with Oracle Rac installations, i have found that providing the customer with a checklist of tasks to be performed before the installation, and reviewing it with their Database/Server/Storage/Network  Administrator’s  help in a smooth RAC installation.The checklist only lists the tasks, but does not go into step by step details regarding how to perform the task. For the details, i then point them to the Oracle Installation and Configuration Guides (Links to which can be found in the checklist itself) and relavent metalink notes.

Below are links to the checklists that I use for 11g Installations on Linux and Solaris. All pointers to errors and improvements are welcome.

Oracle Real Application Clusters, 11g Installation Checklist for Redhat Enterprise Linux 5 and Oracle Enterprise Linux 5

Oracle Real Application Clusters, 11g Installation Checklist for Solaris

Rac how to determine interconnect speed

~ rajeevramdas@aol.com ~ Leave a comment

During a Recent  Oracle 11g Rac installation on Solaris, i ran into  the following issue. After installing and configuring oracle clusterware, when we were trying to create the ASM instance, the ASM instance would only stay alive on one node of the cluster. The customer had configured the private interconnect to be a 100 base T connection (As opposed to GiGE). Once the customer re-configured the interconnect to be a GiGE, the ASM instance came up properly. Oracle recommends that you have a GiGE connection for your private interconnect.

Before starting your installation you can check if the interface you are using for the private interconnect, is configured to be a GIGE connection.

On Redhat or Oracle Enterprise Linux

Install the rpm ethtool

ethtool <interfacename> | grep Speed ,will give you the speed of the interface

On Solaris



kstat <interfacename> | grep link_speed  ,will give you the speed of the interface