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Knowledge Center

When considering an SSD for Synology FlashStation, what options do I have?

Last updated:Feb 23, 2021

When considering an SSD for Synology FlashStation, what options do I have?

Purpose

Synology FlashStation is compatible with 2.5" SAS and SATA SSD interfaces, both of which are similar in terms of drive performance but come with different features. This article provides you detailed information about SAS and SATA SSDs, so you can determine which of the SSD interfaces suits your needs.

Resolution

SAS SSD

  • SAS SSD is mostly defined as an enterprise-class product. In SAS regulation, it supports error detection and retransmission to ensure data integrity. Most SAS SSD vendors have also introduced features like high reliability/endurance (usually marked as drive writes per day or DWPD), energy efficiency, and consistent performance. With the features added, SAS SSD is usually more expensive than SATA SSD.

SATA SSD

  • SATA SSD is mostly defined as a cost-effective storage solution, for its excellent performance is beneficial to high-speed computing needs and far faster than a traditional spindle disc drive. Although most SATA SSDs come with a shorter lifespan and DWPD than SAS SSDs, they are still commonly used in modern PCs and entry-level servers. Relatively, SATA SSD is less expensive than SAS SSD.

Which SSD should I choose, SAS SSD or SATA SSD?

  • For general high-speed computing needs, such as video post-processing, virtualized applications, and VDI, SATA SSD is a cost-effective solution, its high data transfer rate is no doubt beneficial to system performance. Synology FlashStation supports advanced technologies such as Btrfs and RAID F1 that enhance data protection and prevent data loss and sudden RAID volume degradation, so there is no need to worry about the lower DWPD of SATA SSDs. For tasks such as mission-critical virtualization infrastructures or online transactions that require high precision data integrity, SAS SSD is highly recommended for all the benefits of higher stability and durability it brings, and Synology FlashStation safeguards your data against unexpected interruptions.

Please check on the detailed information about Btrfs, RAID F1, and the latest Synology FlashStation's SSD compatibility list.