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Tuning I/O resources

Tuning I/O resources

Input/output (I/O) is the process of transferring data from memory to a device, from a device to memory, or from one device to another. Most I/O usually occurs between memory and the system's hard disk drives, though on some multiuser systems, it might be between the system and terminals connected via the network or serial lines. If the speed at which peripheral devices can access and communicate data to the system is relatively slow, the operating system may spend most of its time idle waiting for I/O with many processes asleep until the I/O completes.

The following sections contain information about the monitoring and tuning of various I/O subsystems:


Next topic: Subsystems that affect disk and other I/O

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SCO OpenServer Release 5.0.7 -- 11 February 2003