When it comes to choosing between HDD (Hard Disk Drive) or SSD (Solid State Drive) for your Synology NAS, it really depends on your specific needs and the way you plan to use your NAS.
HDDs are generally cheaper per GB of storage and have larger storage capacities compared to SSDs. However, they are slower in terms of data transfer speed and access times. If you plan to use your NAS for storing large files that do not require frequent access or if cost is a significant factor, then HDDs may be a good choice for you.
On the other hand, SSDs are faster and more reliable in terms of performance and durability due to having no moving parts. This makes them a good choice for applications that require frequent access and fast transfer speeds, such as running virtual machines, hosting databases or running other high-performance applications. However, SSDs are generally more expensive than HDDs, and their storage capacity is usually smaller.
In summary, if you are looking for a cost-effective option with large storage capacities and don’t require high-performance applications, then HDDs may be the better choice for you. However, if you are looking for faster performance and higher reliability, then SSDs may be the better choice for you, despite their higher cost.