When you configure PowerCenter to run on a grid, you specify the storage location for different types of session files, such as source files, log files, and cache files. To improve performance, store files in optimal locations. For example, store persistent cache files on a high-bandwidth shared file system. Different types of files have different storage requirements.
You can store files in the following types of locations:
Shared file systems.
Store files on a shared file system to enable all Integration Service processes to access the same files. You can store files on low-bandwidth and high-bandwidth shared file systems.
Local.
Store files on the local machine running the Integration Service process when the files do not have to be accessed by other Integration Service processes.