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SQL Server on Linux: Scatter/Gather == Vectored I/O

SQL Server According to Bob

Scatter/gather capabilities allow more efficient memory to disk transfers reducing redundant memory copies, sorting and other activities applications may require to gain improved I/O performance. On Linux the total number of buffers that can be read or written, in a single ABI request, is capped at 2048.

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SQL Server I/O Basics Chapter #2

SQL Server According to Bob

Subsystem / Path The ​​ I/O subsystem or path ​​ includes ​​ those ​​ components ​​ that are ​​ used to support an I/O operation. ​​ Also, it ​​ is ​​ generally impractical on a production system.

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