Veritas Concurrent I/O improves the performance of regular files on a VxFS file system without the need for extending namespaces and presenting the files as devices. This simplifies administrative tasks and allows databases, which do not have a sequential read/write requirement, to access files concurrently. This chapter describes how to use the Concurrent I/O feature.

On the Linux 2-6 kernel, with DB2 8.2.2 or later, you can use the Veritas Concurrent I/O feature to improve data write performance for DMS tablespaces with FILE containers. Concurrent I/O can also improve data write performance for most SMS tablespaces.