A system administrator notices that a Linux server is experiencing slow performance, specifically in disk operations. Upon investigating, the administrator discovered that the I/O wait time is considerably high. Which of the following actions is the BEST course of action to reduce the high latency affecting the system?
Replace the current I/O scheduler with one that is better optimized for the system's workload.
Increase the CPU clock speed to process I/O operations faster.
Decrease the amount of RAM in the system to reduce the memory available for disk caching.
Deploy additional network interfaces to balance the I/O load.
In this scenario, the best course of action is to replace the current I/O scheduler with one that is optimized for the particular workload characteristics (e.g. CFQ, Deadline, NOOP). The I/O scheduler is responsible for ordering disk access to improve performance. Some schedulers are better suited for certain workloads than others, and so choosing the correct one can potentially reduce I/O wait times and thus lower latency.
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