Oracle Tips by Burleson

Oracle10g Grid Computing with RAC
Chapter 5 - Preparing Shared Storage

DB Optimized Option

In such a case, the files in the DB Optimized file system are treated as direct I/O files, and the I/O is completely un-buffered and not serialized through any OS locking. Any access to files in a DB Optimized mounted file system that do not fit the alignment requirements do succeed – through the buffered I/O path. Regular file system commands can be used against these files such as cp, rm, compress, etc.

DB Optimized file systems are used to store all Oracle data files, redo logs, control files, SPFILE, OCR file, and CRS voting disk.

Configure Veritas CFS for Solaris and HP platforms

Another option available for Solaris and HP platform is the use of Veritas Advance Cluster solution, which provides comprehensive cluster software and shared storage solutions. In this section, we will examine the shared storage solution in terms of the Veritas cluster file system (CFS)