Subsystem Device Driver Path Control Module (SDDPCM) for IBM AIX

Good information by Saiprasad P. Parkar and Pratikkumar Ashok Shaha (thank you)

Subsystem Device Driver Path Control Module (SDDPCM) is used for implementing multipath configuration environment using IBM® System Storage® SAN Volume Controller (SVC), IBM Storwize® V7000, and other IBM Storage products. It supports a storage-redundant configuration environment for a host system that is attached to storage devices. It provides enhanced data availability, dynamic input/output (I/O) load-balancing across multiple paths, and automatic path failover protection.

Read on here

Posted by rogerluethy on February 25, 2013

https://rogerluethy.wordpress.com/2013/02/25/subsystem-device-driver-path-control-module-sddpcm-for-ibm-aix/