345-BLZC Dell 15.36TB SAS 24GBPS 1DWPD Read-Intensive 2.5Inch Hot-Plug SSD.

Dell 345-BLZC 15.36TB SAS 24GBPS 1DWPD SAS SSD

The Dell 345-BLZC 15.36TB SAS SSD represents a new generation of high-density, read-optimized solid state storage designed to satisfy the growing demands of enterprise servers and modern data centers. Built around advanced BICS TLC flash technology and powered by the ultra-fast SAS-4 24Gbps interface, this hot-plug 2.5-inch drive delivers exceptional throughput, low latency, and consistent endurance for read-centric applications.

Manufacturer Details

• Brand: Dell
• Part Number: 345-BLZC
• Drive Type: Hot-swap Solid State Drive

Technical Specifications

• Total Capacity: 15.36TB
• NAND Technology: BiCS Flash™ TLC
• Usage Profile: Read-Intensive Endurance

Sequential Throughput

• Up to 4200 MB/s sustained read speed
• Up to 4100 MB/s sustained write speed
• Fast file transfers and quick application loading
• Excellent for backup, restore, and large data streaming

Form Factor Advantages

• Space-saving 2.5-inch footprint
• 15mm thickness for enterprise drive trays
• Supports high-density server configurations
• Easy replacement and upgrades

Supported Dell PowerEdge Servers

• PowerEdge R350, R440, R450, R550, R640, R650, R650xs
• PowerEdge R6515, R6525, R660, R660xs, R6615, R6625
• PowerEdge R740, R740xd, R750, R750xa, R750xs
• PowerEdge R7515, R7525, R760, R760xa, R760xs
• PowerEdge R7615, R7625, R840, R860, R940, R940xa, R960
• PowerEdge C6420, C6520, C6525, C6620
• PowerEdge HS5610, HS5620
• PowerEdge T550, T560
• PowerEdge XE9680, XR7620

Power Vault Storage Integration

• Fully compatible with Power Vault MD2424
• Ideal for shared storage and expansion arrays
• Supports scalable enterprise storage architectures

Ideal Use Cases for the Dell 15.36TB SAS SSD

• Virtual desktop infrastructure (VDI)
• Large-scale virtualization platforms
• Business intelligence and analytics
• Cloud and hybrid cloud storage
• Media delivery and content streaming
• Enterprise databases and data warehouses
• Backup, archiving, and data replication

Dell 345-BLZC 15.36TB SAS 24GBPS SSD

The Dell 345-BLZC 15.36TB SAS 24Gbps Read-Intensive SSD is a strategic asset for the data-centric enterprise. It masterfully addresses the triad of modern storage challenges: the need for massive capacity, blistering read performance, and unwavering reliability. By understanding its specifications—from the 1 DWPD endurance to the dual-ported 24Gbps SAS interface—IT architects and storage administrators can confidently deploy it to accelerate read-dominant workloads, consolidate infrastructure, and build a storage foundation that supports business growth while effectively managing long-term costs. It represents the intelligent, performance-capacity workhorse tier in a modern, multi-tiered enterprise storage architecture.

Decoding the Dell 345-BLZC: A Specification Deep Dive

Every alphanumeric code in the Dell 345-BLZC's name signifies a deliberate engineering choice. This section breaks down the core specifications that define its capabilities and ideal use cases. The specific 15.36TB capacity is not arbitrary. It results from the NAND flash memory architecture, where storage is built using binary multiples. Furthermore, a portion of the raw NAND capacity is reserved for over-provisioning—a critical technique where spare space is used by the SSD's controller for garbage collection, wear leveling, and maintaining high performance and endurance over the drive's lifespan.

Capacity & Form Factor: 15.36TB in a 2.5-Inch Hot-Plug Drive

The massive 15.36 Terabyte (TB) capacity is a headline feature. It allows for unprecedented data consolidation, reducing the physical drive count, power consumption, and rack space required compared to deploying multiple lower-capacity drives. This directly translates to lower Total Cost of Ownership (TCO) and simplified storage array management. The 2.5-inch hot-plug form factor is the industry standard for modern server and storage array bays. The "hot-plug" capability is crucial for enterprise uptime; it permits drive removal and replacement without powering down the entire system, enabling seamless maintenance and rapid failure recovery.

Interface & Protocol: SAS 24GBPS SSD

The "SAS 24Gbps" designation is what truly separates this drive from mainstream storage. SAS (Serial Attached SCSI) is a full-duplex, dual-port protocol designed for enterprise and data-center environments.

24Gbps (Generation 4 SAS): This is the latest generation of SAS technology, doubling the bandwidth of the previous 12Gbps (SAS3) standard. With a theoretical per-lane speed of 24 gigabits per second, and utilizing multiple lanes, it delivers exceptional throughput for data-intensive applications, eliminating storage bottlenecks.

NAND Type: Read-Intensive 1 DWPD

Endurance, measured in Drive Writes Per Day (DWPD), 345-BLZC defines how much data can be written to the drive daily over its warranty period. A 1 DWPD rating means you can write the entire drive's capacity (15.36TB) once every day for five years (a typical warranty period). This endurance class is optimized for workloads with a high read-to-write ratio (often 90/10 or 80/20). It utilizes more cost-effective NAND flash types (like 3D TLC) compared to write-intensive drives, providing an excellent balance of capacity, performance, and price for the right applications.

Targeted Workloads & Application Scenarios

The Dell 345-BLZC is not a one-size-fits-all solution; it is a precision instrument. Its value is maximized when aligned with specific data patterns and business applications.

Enterprise File Sharing & Collaboration Platforms

In large organizations, platforms like Microsoft SharePoint or network-attached storage (NAS) systems for active projects host files that are read far more often than they are modified or written. Deploying the 345-BLZC in the storage backend of these systems accelerates document access, search, and retrieval for a global workforce.

vs. NVMe SSDs

NVMe (Non-Volatile Memory Express) over PCIe offers incredible, low-latency performance and is ideal for the most demanding, latency-sensitive workloads. However, its ecosystem is different. The Dell 345-BLZC SAS SSD offers advantages in:

Reliability

Dell Enterprise 345-BLZC SSDs come with a standard 5-year limited. This warranty is aligned with the drive's endurance rating (1 DWPD for 5 years). The inclusion of advanced features like Power Loss Protection (ensuring data in flight is not corrupted during an unexpected power failure) and end-to-end data path protection reduces the risk of data corruption and unplanned downtime, which carries immense cost in enterprise settings.

Compatibility

345-BLZC key strength of SAS technology is its robust compatibility matrix. A 24Gbps SAS4 drive is backward compatible with 12Gbps (SAS3) and 6Gbps (SAS2) infrastructures. It will automatically negotiate down to the highest supported speed of the host system. This protects investments and allows for phased upgrades. Conversely, when installed in a native 24Gbps SAS4 host bus adapter (HBA) and backplane, it delivers its maximum performance.