Final answer:
To guarantee a throughput of 25 MBps, you should consider a disk type like an SSD, which offers superior performance over HDDs. It is important to review the read/write speeds to ensure they exceed the required throughput. Other factors such as reliability and IOPS should also influence the decision, along with budget considerations and potential future needs.
Step-by-step explanation:
When selecting a disk type to ensure a guaranteed throughput of 25 MBps for a medium-sized application with modest IO requirements, you should consider disk performance specifications that align with your needs. For consistent performance requirements like these, a solid-state drive (SSD) would typically be an appropriate choice over a hard disk drive (HDD), as even entry-level SSDs usually offer greater throughput than 25 MBps. However, if cost is a concern and the throughput demand is consistent without significant peaks, a higher-end HDD might also meet the requirements, particularly one that is designed for enterprise systems and raid configurations which often tout improved IO performance.
It's important to look at the specified read/write speeds of the storage device, as manufacturers will typically list the sequential and random read/write speeds. For a guaranteed throughput of 25 MBps, the disk's sequential write speed should consistently exceed this number. Additionally, considering the use case of an application, other factors such as the disk's reliability, latency, and IOPS (Input/Output Operations Per Second) should be factored into the decision-making process. Enterprise-grade disks, whether HDDs or SSDs, are usually engineered for such reliability and performance. Ultimately, evaluating the disk specifications pertinent to your application's performance requirements—alongside other factors like budget and future growth expectations—is essential in making an informed decision. When in doubt, it is advisable to consult with a storage solution expert or conduct further research based on your specific use case.