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Differences between Solid State devices (SDD) and Traditional Spinning Disk (TSD)
As much as both the solid-state devices and traditional spinning disk-like the hard disk drives (HDD) perform similar roles, the two have divergent underlying technologies. The analyses focus on factors such as read and write speeds, encryption, capacity, and workloads.
Considering read and write speeds, the SDDs are quite faster compared to the HDDs. This is because they simultaneously access the cells of reading and write operations hence making the process speeds beyond 15K RPM. On the other hand, HDDs have platters that spin at speeds ranging between 7,500 rpm to 15000 rpm. Another factor of difference between the two classes of devices is capacity. The SDDs also have superior capacity than the HDDs. Several vendors currently offer SDD of 100 TB 3D in a form factor measuring 3.5 inches. The HDD manufacturers are still stuck with 14TB maximum capacities (HDD & Taylor, 2020). Another important factor is encryption. Both the SDDs and HDDs support software-based encryptions where data is subjected to an encryption algorithm that encrypts the data while writing it on the disk.
Consequently, the data decrypted and read from the disk. The process of encryption favors SDDs than HDDs since the former has used cryptoprocessor to administer encryption. The final analysis factor is workloads. SDDs are preferable for high-performance processing to their HDDs counterparts. The SDDs will always produce optimal performance, whether in hybrid storage arrays or an all-flash array.
Reference
HDD, S., & Taylor, C. (2020). SSD vs. HDD. Retrieved 8 September 2020, from https://www.enterprisestorageforum.com/storage-hardware/ssd-vs-hdd.html