IBM Spectrum Scale Data Management API for GPFS information
The Data Management Application Programming Interface (DMAPI) for (GPFS) is based on The Open Group's System Management: Data Storage Management (XDSM) API Common Applications Environment (CAE) Specification C429, The Open Group, ISBN 1-85912-190-X specification. The implementation is compliant with the standard. Some optional features are not implemented.
The XDSM DMAPI model is intended mainly for a single-node environment. Some of the key concepts, such as sessions, event delivery, and recovery, required enhancements for a multiple-node environment such as GPFS.