The Storage Networking Industry Association (SNIA) is a non-profit, membership-driven organization dedicated to providing standards and education/certification on IT storage technologies. It's been around since 1997 and is both well connected in the industry and highly respected therein.
The SNIA certification program offers the SNIA Certified Storage Engineer (SCSE), SNIA Certified Storage Architect (SCSA) and SNIA Certified Storage Networking Expert (SCSN-E) credentials. The SCSN-E is the pinnacle cert in this line-up, and identifies IT professionals who can design, deploy and manage a storage network in a multivendor environment.
This is a rigorous certification that can take years of experience and study to achieve. Those who persevere and earn the SCSN-E join an elite group of storage networking professionals at the top of their games.
Requirements: Pass three exams: SNIA Storage Network Foundations exam (S10-101) or substitute CompTIA Storage+ Powered by SNIA certification, SNIA Storage Networking Management/Administration exam S10-201 or S10-210, and SNIA Architect - Assessment, Planning & Design exam S10-300 or S10-310. Must also complete two SNIA Certification Partner product credentials. Partners include Brocade, Cisco, Dell, EMC, HP ASE, Hitachi Data Systems and NetApp. (See list at http://www.snia.org/education/certification/scsne.)
Exam costs: $200 per SNIA exam + the cost of partner product credentials (which vary): $600 plus.