Only 12 Gb/s Serial Attached SCSI (SAS-3) drives meet every stated need. SAS-3 provides a per-lane throughput of 12 Gb/s and is full-duplex. Enterprise SAS drives include two independent ports, allowing each disk to be cabled to separate host bus adapters so the operating system can establish redundant, multipath access.
Serial ATA III is limited to 6 Gb/s, is half-duplex, and exposes only a single port per drive, so it cannot provide simultaneous redundant paths. USB 3.2 Gen 2 offers 10 Gb/s signaling but is designed for removable devices, is single-ported, and lacks the dual-path capability expected in enterprise backplanes. SDXC UHS-II media peaks around 312 MB/s (≈2.5 Gb/s), far below the required bandwidth and with no dual-port feature. Therefore, 12 Gb/s SAS-3 is the correct choice, while the other interfaces fail on speed, redundancy, or both.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is SAS-3 and why is it suitable for enterprise storage?
Open an interactive chat with Bash
What is multipath I/O, and why is it important for enterprise storage?
Open an interactive chat with Bash
How does the 12 Gb/s backplane connect with PCIe storage HBAs?