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IBPI
The International Blinking Pattern Interpretation (IBPI) is an internal computer hardware standard. It defines two items: # How SGPIO is interpreted into states for drives or slots on a backplane. # How light emitting diodes (LEDs) on a backplane should represent these states. IBPI was defined by the SFF-8489 specification of the Small Form Factor Special Interest Group in 2011. SGPIO has been adopted across the storage industry, and has in large replaced proprietary protocols such as SCSI Enclosure Services (SES) and SAF-TE. Note, however, that both IBPI and the underlying SGPIO are documenting common practice rather than providing requirements; the entire changelog for version 0.4 of IPBI is "Text changes made to identify this specification as one alternative, rather than the only one." ''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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SGPIO
Serial general-purpose input/output (SGPIO) is a four-signal (or four-wire) bus used between a host bus adapter (HBA) and a backplane. Of the four signals, three are driven by the HBA and one by the backplane. Typically, the HBA is a storage controller located inside a server, desktop, rack or workstation computer that interfaces with hard disk drives or solid-state drives to store and retrieve data. It is considered an extension of the general-purpose input/output (GPIO) concept. – The SGPIO specification is maintained by the Small Form Factor Committee in the SFF-8485 standard. The International Blinking Pattern Interpretation indicates how SGPIO signals are interpreted into blinking light-emitting diodes (LEDs) on disk arrays and storage back-planes. History SGPIO was developed as an engineering collaboration between American Megatrends Inc, at the time makers of back-planes, and LSI-Logic in 2004. SGPIO was later published by the SFF committee as specificatioSFF-8485 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |