Comparison

ExaDrive vs. NVMe in the data center

The 3.5 inch form factor has been refined over decades by enclosure, server, and rack infrastructure companies to provide superior density. By adopting this approach, ExaDrive offers up to 7.5x better density and 80% lower OpEx than NVMe SSDs.

  w/ExaDrive NL w/NVMe SSD ExaDrive Advantages
Max Density Enclosure 4U 90-slot 3.5″ 2U 24-slot 2.5″ 2x more drives per U
Max SSD Capacity 64 TB 16 TB 4x more TB per drive
Max Rack Capacity 63.4 PB 8.4 PB 7.5x more capacity
Capacity per Rack U 1.44 PB 0.2 PB 7.5x higher density
Power per TB 0.23 W 1.30 W 76% lower power
TCO per TB $ $$$ 80% lower TCO / TB



ExaDrive vs. HDD in the data center

ExaDrive has eclipsed nearline HDDs in capacity, and there is little evidence that HDD vendors will ever catch up. Higher density equates to lower power per TB and lower server/software costs. ExaDrive, of course, crushes HDDs on performance.

  w/64 TB ExaDrive w/18 TB HDD ExaDrive Advantages
Capacity per Rack U 1.44 PB 0.4 PB 3.6x higher density
Power per TB 0.23 W 0.71 W 67% lower power
Access Time < 0.1 ms 15 ms 150x faster access
Random IO / TB (4 KB) 1,563 IOps 11 IOps 142x more IOps
Workload Rating 0.2 – 0.6 DWPD 0.08 DWPD ~4x more reliable
Weight per TB 6.3 grams 38.3 grams 84% lighter / TB



ExaDrive vs. enterprise SATA SSDs

Existing SATA SSDs top out at 8 TB, offering limited capacity for large data workloads. At the same time, existing SATA SSDs often lack in-flight data protection. ExaDrive is the world’s highest capacity enterprise-grade SATA SSD.

 
Form Factor 2.5″ 2.5″ 2.5″ 2.5″ 3.5″
Capacity Range 1 TB to 8 TB 1 TB to 8 TB 1 TB to 8 TB 1 TB to 8 TB 16 TB to 100TB
Lowest Power / TB 0.90 W 0.60 W 0.50 W 1.1 W 0.15 W



ExaDrive vs. enterprise SAS SSDs

The SAS protocol offers dual-port capability and better signal integrity than SATA, essential for high availability storage systems and ultra-dense server designs. ExaDrive is the world’s highest capacity and most energy efficient SAS SSD.

 
Form Factor 2.5″ 2.5″ 2.5″ 3.5″
Capacity Range 1 TB to 15 TB 1 TB to 30 TB 1 TB to 15 TB 16 TB to 100TB
Lowest Power / TB 0.90 W 0.50 W 1.1 W 0.15 W



ExaDrive vs. enterprise HDDs

Nearline HDDs are inexpensive but are very slow and offer less capacity than ExaDrive. While HDD media may not have a firm endurance limit, HDD motors do (550 TB / year according to all three HDD vendors), and that affects overall reliability.

 
Max Capacity 16 TB 16 TB 18 TB 100 TB
Lowest Power / TB 0.75 W / TB 0.75 W / TB 0.67 W / TB 0.15 W / TB
Weight / TB 41.9 g / TB 45.0 g / TB 38.3 g / TB 5.9 g / TB
Workload Rating 0.1 DWPD 0.1 DWPD 0.08 DWPD 0.2 – 0.6 DWPD