IBPI is an acronym for International Blinking Pattern Interpretation (IBPI), and defines these two items:
- How SGPIO is interpreted into states for drives or slots on a backplane.
- How LEDs on a Backplane should represent these states.
IBPI is a rapidly emerging industry standard and defined by SFF-8489. SGPIO has been adopted across the storage industry, and has in large replaced proprietary protocols, SCSI Enclosure Services (SES) and SAF-TE. SGPIO is defined by the SFF-8485 specification.
States for drives or slots can be, for example, empty, failed, rebuilding, etc. The state of a drive or slot is determined by the host bus adapter, and is typically transmitted to the backplane through SGPIO-signals on a cable.
Read more about IBPI: Typical System Storage Architecture, HW Layer: The Physical SGPIO Bus and Signal Definitions, SGPIO Protocol Layer: The SGPIO Bit Definitions, SGPIO Protocol Layer: Definition of The 3 Bits, Shortcomings in SGPIO and The IBPI Specification Advantages, IBPI Spec: SGPIO Interpretation, IBPI Spec: LED Blinking Pattern Interpretation, Summary: Combined IBPI Interpretation Table