The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

2.2.6 Default I/O Scheduler

For the Unbreakable Enterprise Kernel, deadline is the default I/O scheduler.

For the Red Hat Compatible Kernel, cfq is the default I/O scheduler.

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