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In fact, the SA500’s endurance easily beats that of most conventional SSDS. The 1TB and 2TB versions will take you 40 and 80 years, respectively. If you write 50GB - about two Blueray movies worth of data - to a 500GB WD Red per day and every day, it’ll still take you some 20 years to wear it out. Endurance is necessary since NAS servers are designed to work 24/7 with lots and lots of transactions.īut keep in mind that 350TB is already a massive amount of data. While that sounds like a big gap because it is. For comparison, the 500GB WD Red SA500 can take only 350 TBW, less than half. Its 480GB capacity, for example, can handle 875 TBW. The Seagate’s IronWolf 110 has the highest endurance I’ve seen in a standard SSD. A higher-capacity drive of the same model generally has higher TBW. We measure endurance by the number of terabytes that can be written (TBW). The higher the rating is, the more writes you can perform on a drive. Comparatively low enduranceĮndurance is the amount of data you can write to an SSD before you can’t anymore. With up to 4TB of storage space, the new WD Red SA500 SSD is perfect for a high-end NAS server. Considering most NAS servers’ performance is limited by their network connection, which generally caps at 1Gbps, the SA500 is more than fast enough. The SA500 uses SATA 3, which caps at 6Gbps.
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And both drives will also work with any standard computer that supports their interfaces. Of course, you can use an adapter (not included) to use the SA500 in any server of any physical size. The 2.5-inch design is a perfect fit for mini NAS servers, like the Synology DS620slim or the DS419slim, and the M.2 can work right away as a cache for the DS1019+ though, in this case, I wish it were an NVMe drive. It’s important to note that the M.2 version doesn’t support the NVMe interface. If you’re not sure which is which, I talked about them in detail in this post. It’s available in up to 4TB in the standard 7mm 2.5-inch (laptop) form factor and up to 2TB in the newer M.2 2280 design. As mentioned above, the WD Red SA500 comes in two flavors.