Dell 480GB SAS SSD 2.5″ 12Gb/s 0B34794 Enterprise Solid State Drive

Dell 480GB SAS 12Gbps 2.5″ Enterprise Read-Intensive SSD

This enterprise-class Solid State Drive (SSD) is custom-certified for Dell PowerEdge servers and PowerVault arrays. Manufactured by HGST (a Western Digital brand) under the premium Ultrastar SSD1600MR series, this drive combines highly reliable Multi-Level Cell (MLC) NAND flash memory with a dual-port 12Gb/s SAS interface to deliver optimized read throughput and excellent IOPS-to-watt efficiency for read-centric server workloads.

General Specifications

Performance Dimensions

The drive architecture is fine-tuned for rapid access to “hot” enterprise data and high sequential tracking:

• Interface Link Rate: 12 Gb/s (1200 MB/s per port)

• Sequential Read Speed (64K): Up to 1,100 MB/s

• Sequential Write Speed (64K): Up to 700 MB/s

• Random Read (4KiB): Up to 130,000 IOPS

• Random Write (4KiB): Up to 30,000 IOPS

• Mixed Workload (70% Read / 30% Write): ~50,000 IOPS

Enterprise Features & Reliability

• Endurance Classification: Read-Intensive (RI) / High Endurance Technology (HET)

• MTBF (Mean Time Between Failures): 2.5 Million Hours

• Annualized Failure Rate (AFR): 0.35%

• Data Reliability (UBER): 1 in $10^{17}$ bits read

• Data Protection Framework:

  • Advanced Power Loss Management: Employs onboard hardware capacitance to safely commit data-in-flight to non-volatile flash memory during unexpected power loss.

  • End-to-End Protection: Fully compliant with the T10 Data Integrity Field (DIF) standard.

  • XOR Parity Protection: Features internal Exclusive-OR parity checks to insulate against individual flash die failures without stalling operation.

System Compatibility

This 15mm SFF SAS drive is engineered for integration across legacy and mainstream Dell architectures:

• Dell PowerEdge Servers: 13th and 14th Generation servers including R430, R630, R730, R730xd, R930, R440, R640, R740, and R740xd arrays.

• Storage Arrays: Compatible with Dell PowerVault MD and ME series enclosures utilizing standard 2.5″ hot-plug backplanes.