Seagate officially unveiled its Exos X18 hard drives on Thursday, which have been shipping to select customers for a while. The new drives are designed for hyperscalers, data centers and enterprise NAS systems that require maximum capacity, reliability and 24/7 availability.
The Seagate Exos X18 is the company’s 5th generation helium-filled 3.5-inch hard drives with a spindle speed of 7200 RPM. The HDDs can store 16 TB or 18 TB of data using eight or nine platters. The hard drives rely on conventional magnetic recording to ensure predictable write performance. The Exos X18 is aimed at different customers with different servers and can use a SATA or SAS interface as well as 512e or 4KN formatting. The SATA version has an average power consumption of 5.3 W, while the SAS version consumes 5.8 W.
In terms of performance, Seagate rates its Exos X 18TB HDDs for a sustained data rate of 270MB / s and also says that the new drives offer more random read / write input / output operations per second (IOPS) than previous generations of hard drives.
18TB for enterprise and hyperscalers
Because data center hard drives operate in multi-bay racks, a highly vibrating environment, Seagate’s Exos HDDs come with numerous reliability features, including a dual-connected motor and RV sensors to ensure stable and predictable performance. In terms of endurance, the manufacturer rates its Exos HDDs for a workload of up to 550TB / year over five years.
With 18 TB hard drives, businesses can store up to 4320 TB of data in a single standard rack (240 drives), an increase of 11.1% compared to 16 TB HDDs. Hyperscalers using extremely compact 4U servers with approximately 100 3.5-inch HDDs inside can now store up to 1800 TB per box or as much as 18 PB (petabytes per rack). Cloud data center owners are always inclined to increase their capacities per watt and per square meter, so they appreciate high capacity hard drives.
The Seagate Exos X18 HDD is available now from retailers and resellers for a suggested retail price of $ 561.75, which is slightly lower compared to the $ 599 price of the drive released last month. At $ 32 per terabyte, the Exos X18 isn’t the cheapest TB-based hard drive, but its main selling point is its extreme capacity that allows to maximize storage capacity per rack and thus per data center.