Home | Contents | Help   Raidhelp     Three Stages of I/O Processing Processing a standard I/O request within a RAID system can be broken down into three main stages: 1. Generation The time required by the operating system to generate an I/O request. 2. Processing The time required by the RAID controller and the disk drives to process the I/O request. 3. Transference The time required to transfer the data from the drive storage system to the host. Each of these three stages has a direct impact on the potential performance of the array or RAID system. Different types of interfaces offer better or worse I/O processing options. The ideal interface is one that offers multi-threaded I/O processing.  Related topics: The Interface Decision   Raidhelp   RAIDhelp© Copyright 1999-2004 Antony Kershaw