19TW1 Dell 12TB 7.2K RPM SAS-12GBPS 256MB 512E Hard Drive

Product Overview of Dell 19TW1 12TB Near Line SAS HDD

The Dell 19TW1 12TB Near Line SAS hard drive is a high-capacity enterprise storage solution designed for Dell PowerEdge servers. Built for reliability, performance, and scalable data environments, this 3.5-inch hot-plug HDD delivers stable throughput and long-term durability for modern data centers.

General Product Information

• Manufacturer: Dell
• Part Number: 19TW1
• Type: Enterprise Hard Disk Drive (HDD)

Technical Specifications

• Storage Capacity: 12 TB
• Form Factor: 3.5 Inch
• Interface: SAS 12Gbps
• Cache Buffer: 256 MB
• Sector Format: 512e Advanced Format

Performance Characteristics

• Rotational Speed: 7200 RPM
• Average Latency: 4.16 ms

Data Transfer Performance

• Sustained Transfer Rate: 243 MB/s (read), 255 MB/s (write)
• External Transfer Rate: Up to 1200 Mbps via SAS 12Gbps

Seek Performance

• Typical Read Seek Time: 8.0 ms
• Typical Write Seek Time: 8.6 ms

Compatibility

Supported Dell PowerEdge Servers

• PowerEdge C6420
• PowerEdge R440
• PowerEdge R540
• PowerEdge R640
• PowerEdge R6415
• PowerEdge R7415
• PowerEdge R7425

Highlights of Dell 19TW1 12TB 7200RPM Near Line SAS HDD

The Dell 19TW1 12TB 7200RPM Near Line SAS Hard Drive is a high-capacity enterprise storage solution designed for Dell PowerEdge 14G server environments where reliable data retention, scalable storage architecture, and consistent performance are critical requirements. This 3.5-inch hot plug hard drive combines 12TB capacity with a 7200RPM spindle speed and a 12Gbps SAS interface to deliver stable performance for backup systems, archival storage, virtualization environments, and enterprise data center workloads. 

12TB High-Capacity Storage

The 12TB capacity of the Dell 19TW1 enables organizations to consolidate large volumes of data into fewer physical drives. This reduces hardware footprint and simplifies storage infrastructure management. It is ideal for backup repositories, surveillance archives, cloud storage systems, and big data environments. The high-density design improves rack efficiency and reduces operational complexity. It supports scalable RAID configurations for enterprise-level redundancy and performance.

7200RPM Rotational Speed

The 7200RPM spindle speed delivers stable and predictable performance for sequential workloads and large file transfers. It is optimized for backup operations, archival storage, and enterprise file systems. Compared to higher RPM drives, it consumes less power and generates lower heat output. This improves energy efficiency in large-scale data center deployments. The mechanical design ensures consistent reliability under continuous operation.

Near Line SAS 12Gbps Interface

The SAS 12Gbps interface provides high-bandwidth and reliable communication between the drive and Dell PowerEdge server controllers. It supports full-duplex data transfer for simultaneous read and write operations. This ensures efficient handling of large datasets in enterprise environments. SAS technology delivers superior error detection and signal integrity compared to SATA interfaces. It is engineered for mission-critical workloads requiring stable and fast data access.

256MB Cache Buffer

The integrated 256MB cache buffer significantly improves drive performance by temporarily storing frequently accessed data. This reduces latency and enhances responsiveness during intensive workloads. It is particularly beneficial for backup systems, virtualization environments, and file storage applications. The cache smooths data flow and ensures consistent throughput under heavy load conditions. This results in improved overall system efficiency and performance stability.

512e Advanced Sector Format

The 512e sector format uses 4K physical sectors while emulating 512-byte logical sectors for compatibility with legacy systems. This ensures seamless integration with RAID controllers and enterprise operating systems. It improves storage efficiency while maintaining compatibility across hybrid environments. Proper sector alignment enhances performance consistency and reliability. This makes it suitable for diverse enterprise storage architectures.

3.5 Inch Form Factor

The 3.5-inch form factor enables high-capacity storage deployment in Dell PowerEdge server chassis. It allows efficient utilization of server bays while maximizing storage density. This design is widely used in SAN systems, backup servers, and archival infrastructures. The robust mechanical structure ensures stable operation under continuous workloads. It supports scalable enterprise data center architecture.

Hot Plug Tray Design

The included Dell hot plug tray allows installation or replacement without shutting down the server. This ensures uninterrupted system availability during maintenance operations. It is essential in RAID environments where failed drives must be replaced immediately. The tray ensures secure mounting and proper airflow within the chassis. This feature minimizes downtime and improves operational efficiency in enterprise systems.

PowerEdge 14G Server Integration

The Dell 19TW1 is validated for Dell PowerEdge 14th Generation servers, ensuring full compatibility with Dell PERC RAID controllers. This certification guarantees optimized firmware performance and system stability. Integration with Dell OpenManage enables centralized monitoring and diagnostics. Vendor certification reduces deployment risks and ensures reliable operation. It is a trusted enterprise storage component within Dell ecosystems.

Enterprise Reliability

This hard drive is engineered for continuous operation in enterprise environments where uptime is critical. Its components are designed to withstand vibration, heat, and sustained workloads. Dell validation testing ensures long-term durability and reliability. This reduces the risk of unexpected failures in production systems. It is suitable for mission-critical storage environments requiring continuous availability.

Data Integrity Protection

Integrated error correction mechanisms continuously monitor data during read and write operations. These systems detect and correct errors before they impact system performance. This ensures high data integrity in enterprise workloads. It reduces the risk of silent data corruption over time. Organizations benefit from improved reliability and data accuracy in storage systems.

Redundant Storage Architecture

The Dell 19TW1 supports RAID configurations including RAID 1, RAID 5, RAID 6, and RAID 10. These configurations provide redundancy, performance optimization, and scalable storage expansion. The 12TB capacity enables efficient construction of high-density RAID arrays. RAID integration ensures data availability during drive failures. This supports enterprise-grade storage resilience and continuity.

Enterprise Continuity

This drive is ideal for backup and disaster recovery environments requiring large-scale data retention. It can store full system images, application backups, and archival datasets efficiently. The SAS interface ensures stable performance during backup and restore operations. Consolidating backup storage reduces infrastructure complexity. It strengthens enterprise continuity and disaster recovery planning.

Cloud Storage Workload

The Dell 19TW1 is well suited for virtualization environments requiring large-scale storage capacity. It supports VMware, Hyper-V, and cloud platforms through Dell PowerEdge integration. The drive improves virtual machine storage efficiency and workload distribution. It is suitable for secondary storage tiers in cloud infrastructure. This supports scalable enterprise virtualization deployments.

Enterprise Collaboration Systems

This drive is ideal for file servers and NAS systems handling enterprise-level shared data. The 7200RPM speed ensures stable throughput for multiple users. The large cache buffer improves responsiveness during file access operations. SAS connectivity ensures reliable data transfer under load. It supports centralized storage for enterprise collaboration environments.

Data Center Environments

The high-capacity design reduces the number of drives required for storage deployment. The 7200RPM speed minimizes power consumption compared to higher-performance drives. This improves thermal stability in server racks and enclosures. Reduced energy usage contributes to lower operational costs. It supports efficient and sustainable enterprise data center operations.

OpenManage Integration

Dell-certified firmware ensures optimized performance within PowerEdge environments. It manages caching, command processing, and error handling efficiently. Integration with Dell OpenManage provides centralized monitoring and diagnostics. This improves system visibility and operational control. It ensures consistent enterprise storage performance across deployments.

Scalable Storage Infrastructure

The Dell 19TW1 12TB 7200RPM Near Line SAS hard drive delivers a strong combination of capacity, reliability, and enterprise-grade performance. Its 12TB storage, 256MB buffer, 512e format, and hot plug tray make it ideal for backup, archival, virtualization, and file server workloads. Certified compatibility with Dell PowerEdge 14G servers ensures seamless integration. Businesses benefit from scalable storage expansion and trusted Dell engineering for long-term infrastructure growth.