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Fixed-block architecture

Fixed-block architecture (FBA) is an IBM term for the hard disk drive (HDD) layout in which each addressable block (more commonly, sector) on the disk has the same size, utilizing 4 byte block numbers and a new set of command codes. FBA as a term was created and used by IBM for its 3310 and 3370 HDDs beginning in 1979 to distinguish such drives as IBM…

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Hard disk driveBlockSectorIBM3310
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LBAAdvanced Format512e
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Fixed-block architecture

Nodes22
Edges21
Triples0
Avg. degree1.91
Density0.090909
Components1

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disk ibm block size data record track number drive hard sector key blocks hdds format mainframe fba term 3310 3370

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