Description: Disk performance refers to how quickly a disk can read and write data. This performance is crucial in computing environments as it directly affects the speed of data access and, consequently, the efficiency of applications that rely on that data. Traditional hard drives (HDD) and solid-state drives (SSD) have different performance characteristics; while HDDs are slower due to their mechanical nature, SSDs offer significantly higher read and write speeds thanks to their flash memory-based technology. Disk performance is commonly measured in terms of data transfer rates, indicating how many megabytes per second (MB/s) can be read or written. Additionally, factors such as latency, seek time, and disk fragmentation also influence overall performance. In virtualized environments, disk performance becomes even more critical, as multiple virtual machines may be accessing the same storage resources simultaneously, potentially creating bottlenecks if not managed properly. Therefore, optimizing disk performance is essential to ensure smooth and efficient operation of applications and services that depend on it.