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Oracle RAC 11g Release 2 running on CentOS using iSCSI (08-November-2010)
Oracle RAC 11g release 2 allows DBA's to configure a clustered database solution with superior fault tolerance, load balancing, and scalability. However, DBA's who want to become more familiar with the features and benefits of database clustering will find the costs of configuring even a small RAC cluster costing in the range of US$10,000 to US$20,000. This cost would not even include the heart of a production RAC configuration, the shared storage. In most cases, this would be a Storage Area Network (SAN), which generally start at US$10,000. Unfortunately, for many shops, the price of the hardware required for a typical RAC configuration exceeds most training budgets. For those who want to become familiar with Oracle RAC 11g without a major cash outlay, the following guide provides a low-cost alternative to configuring an Oracle RAC 11g release 2 system using commercial off-the-shelf components and downloadable software at an estimated cost of US$2,800. This guide provides detailed instructions on how to build a two-node Oracle RAC system using low cost hardware and freely available software. A network storage server will be built using Openfiler 2.3 (Final) and iSCSI technology which will be used for all shared storage requirements. Powered by rPath Linux, Openfiler is a free browser-based network storage management utility that delivers file-based Network Attached Storage (NAS) and block-based Storage Area Networking (SAN) in a single framework. Openfiler supports CIFS, NFS, HTTP/DAV, FTP, however, I will only be making use of its iSCSI capabilities to implement an inexpensive SAN for the shared storage component required by Oracle RAC 11g. The new article can be found at: Building an Inexpensive Oracle RAC 11g R2 on Linux - (RHEL 5.5) ---------------------------- Jeffrey M. Hunter, OCP Sr. Database Administrator firstname.lastname@example.org http://www.idevelopment.info ----------------------------