SAMSUNG 845DC PRO MZ-7WD800EW 2.5" 800GB SATA III MLC Enterprise Solid State Drive

Samsung SSD 845DC EVO
Outstanding Performance and Reliability Specifically Engineered for Data Center Use

Maintain Consistent Performance with SSDs Made by an Industry Leader in Data Center Memory Solutions

Keep Your Data Center Running Smoothly with Reliable, High-Performance Samsung SSDs

In order for data centers to operate efficiently they must deliver exceptional, consistent performance with low latency. Because they handle various read and write workloads and must operate 24/7, it is critical that data centers maintain high stability. And most importantly, data centers are continually exposed to risk of data corruption or deletion caused by unforeseen power outages. In order to keep data centers up and running efficiently, IT and property managers are continually seeking high-performing and reliable memory solutions. As a global leader in memory technology, Samsung is able to offer data centers superb solid state drives (SSDs) that deliver exceptional performance with protection against data loss regardless of power outages. Using its vast expertise and experience in cutting-edge SSD technology, Samsung memory solutions help data centers operate at a high performance level – 24/7, 365 days a year. Plus, Samsung provides end-to- end integration as the sole manufacturer of the main SSD components for quality assurance and the utmost compatibility. In fact, Samsung has developed the 845DC EVO specifically tailored to the needs of data centers. Samsung 845DC EVO SSD delivers:

• Exceptional Performance – Low latency rate and consistently high performance using NAND flash memory and integration of an optimized controller.
• Outstanding Reliability – Enterprise-grade power-loss protection architecture, advanced signal processing algorithms for integrity assurance, S.M.A.R.T. technology monitoring for failure detection.
• End-to-End Integration – Single-source component manufacturing for synergistic performance compatibility and quality.

Obtain Superb Performance with Low Latency in Both Read and Write Operations

To be well-suited for a data center environment, an SSD must maintain sustained performance over extended periods of time and provide mixed performance for the various workloads that simultaneously access the device. Plus, the SSD must deliver performance consistency to satisfy Quality of Service (QoS) requirements.

Maintain a High-Level of Sustained Performance Using the Best Quality Components

The Samsung 845DC EVO is specifically designed and optimized to excel in virtually any data center scenario, performing best when it matters the most. This enterprise-level, high-performance SSD offers sustained random and sequential read/write performance for diverse RAID configurations.

The NAND chips used in the 845DC EVO are carefully selected from the highest-quality three-bit MLC NAND flash wafer, tuned for high endurance and then tested at both the component and system level before they are determined appropriate for use in the SSD.

Optimize Your Data Center Operations with Enterprise-Level Performance and Dependability

Ensure High Mixed Workload Performance

Because data center SSDs have to serve requests from diverse applications, such as web applications, email services, search engines and databases with numerous kinds of services, mixed workload input/output (IO) performance is extremely important. The I/O workloads generated involve a combination of various read/write ratios, request sizes and Native Command Queuing (NCQ) queue depths (QDs), depending on the type of service. Plus, the SSDs must do so in multiple virtual machines (VMs) on multi-core processors.
The 845DC EVO is especially designed to answer these needs by providing outstanding performance for the various mixed workloads that access a server simultaneously. For various read/write ratios, the 845DC EVO presents overall superior performances which contributes greatly to a data center's total performance.

Deliver Consistent Performance with Low Latency

Also important in data center storage is the QoS, which is determined by the percentage of response times falling below a given value. In other words, the QoS is measured by the consistency of steady performance the device delivers. Low latency is also necessary to satisfy QoS requirements. Storage QoS is particularly important in cloud data center environments, as data centers are expected to provide the level of performance guaranteed by Service Level Agreement (SLA) through parallel and real-time processing.

The following figure illustrates a scenario where multiple VMs share one SSD. Each VM is allocated to a different customer with the same SLA and is expected to deliver identical performance. If a particular VM accesses the SSD while it is undergoing internal SSD functions, such as garbage collection (GC), the VM will show unexpected performance degradations. This degradation violates the SLA and negatively impacts the user experience, hence why consistent performance is mandatory for data center SSDs.

Rely on Samsung SSDs to Deliver the Sustained Reliability Data Centers Demand

Experience Outstanding Reliability You can Truly Depend On

The Samsung 3-bit MLC NAND flash technology also improves lifetime reliability with its included proprietary advanced Error- Correcting Code (ECC) and NAND flash management. Features include:

Advanced ECC Engine and End-to-End Data Protection

Another Key Feature of the 845DC EVO is its Advanced Signal Processing Algorithms
One of the most critical algorithms in the 845DC EVO is the ECC engine, which detects signal discrepancies and proactively remedies them in real time. This process significantly improves the reliability of the SSD, so you can ensure the integrity of the data read from each NAND chip. End-to-end data protection extends error detection through the entire path from host interface to the NAND flash memory in the SSD.

Other specific algorithms monitor every endurance cycle and adaptively tune each cell for higher endurance. At the same time, wear leveling and block replacements are managed proactively by periodic monitoring of the effective endurance level of the NAND

Power Loss Protection

In normal power off conditions, the host server allocates time to preserve data integrity by transmitting standby commands to the devices. However, in the event of an unexpected power loss, the cached data in the device's internal buffers (DRAM) can be lost. Unexpected power loss can result from users unplugging the power from the system without prior notice, sudden battery loss, unexpected power outages or users unplugging devices from the system. To prevent data loss, the 845DC EVO has been designed with powerloss protection architecture. Upon immediate detection of an external power failure, the SSD uses the electricity from a tantalum capacitor to provide enough time to transfer the cached data in DRAM to the flash memory, guarding against data loss.

Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T)

S.M.A.R.T. monitors the computer drives to detect and report on various reliability indicators. When a failure is anticipated, the S.M.A.R.T. technology warns the user of impending driver failure, providing the user time to replace the ailing drive, thereby avoiding data loss or unexpected outages. However, S.M.A.R.T. can only warn of predictable errors, such as mechanical problems, but not ones that result from unpredictable failures, which have no measurable variables to track and analyze, such as electrical surges. In addition, S.M.A.R.T.-enabled drives are capable of reporting S.M.A.R.T. status, indicating that the drive will not perform within the manufacturer's specifications. So, rather than complete data loss, the drive may simply begin to run slower.

Dynamic Thermal Guard Protection

The 845DC EVO is equipped with the Dynamic Thermal Guard protection mechanism that automatically regulates the SSD's temperature internally and protects it from overheating. When the temperature exceeds a safe threshold, the 845DC EVO internally delays the handling of requests to enable the temperature to drop back down to normal operating levels, thereby protecting both the user's data and the hardware.

Align with a Proprietary SSD Component Manufacturer to Ensure Maximum Performance and Endurance

Choose One End-to-End Solution to Ensure Seamless Integration

The three most crucial components of any SSD are the NAND flash memory, the controller and the firmware. The NAND flash memory does the critical task of storing your valuable data. And the controller and the firmware work together to accomplish the complex and essential task of managing data storage and maintaining the performance and lifespan of the SSD. Integration of each component is critically important in creating a high-quality, dependable SSD you can trust.

Samsung is one of the few manufacturers that actually designs all three of these components in-house. And among those who do design all the components themselves, Samsung has vast experience in the SSD market. Because Samsung has intimate knowledge of every component and its parts, it can finely tune them at each stage of development to ensure they work seamlessly together. While generic controller manufacturers must optimize their chips to work with both ONFI and Toggle NAND, Samsung engineers pour their design know-how into making Toggle NAND work perfectly with its own proprietary controller technology. This means that Samsung engineers can focus all their efforts toward one common specification and goal - performing the crucial task of storing and protecting your precious data. That's why integration matters.

Entrust Your Data Center to the Experts in Memory for Over 20 Years

As demand for quality of service (QoS) in performance and enhanced storage security increases in the data center environment, it is vitally important that your SSDs can handle the task. Plus, your SSDs must do so 365 days a year without interruption to ensure not one single megabyte of data is lost. With consistent performance, power loss protection and secure AES data encryption, you can count on the 845DC EVO SSD to keep your data center up and running efficiently, reliably, safely and continually.

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