PERC H755

SAS-SATA Controller Overview

The SAS-SATA controller plays a crucial role in managing the communication between servers and storage devices like hard drives and solid-state drives (SSDs). These controllers are designed to support both Serial Attached SCSI (SAS) and Serial ATA (SATA) protocols, enabling flexible connectivity and high-performance data handling for enterprise storage solutions. As the backbone of server storage infrastructures, these controllers help ensure the optimal performance, reliability, and scalability of storage arrays in demanding environments.

Key Features

• Dual-Protocol Support: SAS-SATA controllers support both SAS and SATA devices, allowing for seamless integration with a wide range of storage devices.
• High Data Transfer Rates: SAS controllers offer higher data transfer rates compared to SATA, making them ideal for high-performance applications.
• Advanced RAID Capabilities: Many SAS-SATA controllers come with built-in RAID functionalities, supporting various RAID levels (RAID 0, RAID 1, RAID 5, RAID 10) for redundancy and performance optimization.
• Scalability: These controllers can support multiple drives, making them suitable for large-scale storage setups in enterprise environments.
• Compatibility: SAS-SATA controllers are designed to be backward compatible with SATA devices, offering flexibility in storage configurations.

PERC H755 SAS-SATA Controller

The PERC H755 is a cutting-edge RAID controller designed by Dell Technologies. This controller is engineered to provide high-performance, reliable, and secure storage management in Dell PowerEdge servers. The PERC H755 is equipped with advanced features that optimize storage operations, ensuring data integrity and speed in demanding server environments. Whether deployed in small-scale enterprise systems or large data centers, the PERC H755 offers a versatile solution for managing data storage needs.

Key Specifications of PERC H755

• Interface: PCIe Gen 4 x8
• RAID Support: RAID 0, RAID 1, RAID 5, RAID 10, RAID 50, RAID 60
• Drive Support: SAS, SATA, NVMe
• Cache: 4GB or 8GB cache options
• Maximum Number of Devices: Supports up to 128 devices
• Advanced Data Protection: Supports data protection features like PowerLoss Protection (PLP), CacheVault, and data rebuild functionality.
• Compatibility: Fully compatible with various Dell PowerEdge server models, providing easy integration.

Performance Benefits of PERC H755

The PERC H755 RAID controller is designed for high throughput and minimal latency, allowing it to deliver optimal performance for a wide range of enterprise applications. Its use of PCIe Gen 4 interface ensures high-speed communication between the controller and server, enabling faster data access and improved overall system performance.

Fast Data Access

With its high-speed data paths and intelligent caching algorithms, the PERC H755 enables faster data retrieval and storage. It supports advanced data management features such as cache tiering, which dynamically optimizes data placement based on usage patterns, ensuring that frequently accessed data is placed in the fastest storage tiers for maximum efficiency.

Reduced Latency

The PERC H755 controller’s advanced architecture significantly reduces latency, ensuring that operations such as database queries, file transfers, and virtualization tasks are completed quickly. This low-latency performance is essential for environments where fast access to data is crucial.

Reliability and Redundancy

The PERC H755 is built with redundancy and data integrity in mind, making it an excellent choice for mission-critical applications. Its advanced RAID support ensures that data is mirrored or striped across multiple drives, preventing data loss in case of drive failure.

RAID Capabilities

RAID support in the PERC H755 enables users to choose between multiple RAID levels, balancing performance, redundancy, and storage capacity. Whether you need redundancy for data protection or enhanced speed for high-performance workloads, the PERC H755 can be configured to meet specific requirements.

Power Loss Protection

One of the most significant features of the PERC H755 is its PowerLoss Protection (PLP) functionality. This ensures that in the event of an unexpected power outage, any cached data in transit is safely written to disk, preventing data corruption and loss. The PLP feature is an essential safeguard for environments where uptime and data integrity are critical.

Subcategories of SAS-SATA Controllers

Within the category of SAS-SATA controllers, there are several subcategories designed to meet specific needs of different applications, ranging from entry-level to enterprise-level systems. Understanding these subcategories helps businesses choose the right controller for their storage setup.

Entry-Level Controllers

Entry-level SAS-SATA controllers offer basic RAID functionality and support for a limited number of drives. These controllers are ideal for small businesses or personal servers where performance is important but not mission-critical. They typically support RAID 0 and RAID 1 configurations for simple drive mirroring or striping for speed.

Mid-Range Controllers

Mid-range controllers provide more advanced RAID configurations and support for a larger number of devices. They are suitable for growing businesses or more demanding applications that require more storage capacity and better fault tolerance. These controllers often feature more sophisticated caching algorithms, allowing for improved performance in multi-user environments.

Enterprise-Grade Controllers

Enterprise-grade SAS-SATA controllers like the PERC H755 offer the highest levels of performance, redundancy, and scalability. These controllers support large-scale storage configurations, advanced RAID features, and multiple drive interfaces, including SAS, SATA, and NVMe. They are designed to handle the intensive demands of data centers, virtualization, and high-performance computing environments.

Advanced RAID Controllers

For businesses that require cutting-edge data protection and high-speed storage, advanced RAID controllers like the PERC H755 offer additional features like NVMe support, enhanced data rebuild capabilities, and improved cache management. These controllers are equipped with enterprise-class functionality for critical applications that cannot afford downtime.

Choosing the Right SAS-SATA Controller

Selecting the right SAS-SATA controller for your server depends on various factors, such as the number of drives in your storage setup, performance requirements, and data protection needs. When considering a controller like the PERC H755, it’s important to evaluate the following criteria:

Performance Requirements

If your applications require fast data access, high throughput, or low latency, it’s essential to choose a controller that offers high-speed interfaces like PCIe Gen 4 and supports SSDs for optimal performance. The PERC H755 is an excellent choice for businesses looking to leverage the power of SAS and NVMe drives for maximum speed.

Scalability Needs

Consider how much storage you will need as your business grows. The PERC H755 is scalable, supporting up to 128 devices, making it a suitable choice for businesses that anticipate expanding their storage capacity in the future. If you expect significant growth, selecting a controller with high scalability will help avoid the need for frequent upgrades.

Data Redundancy and Protection

For critical applications where data loss is unacceptable, choose a controller that offers robust RAID support and power loss protection features. The PERC H755’s PowerLoss Protection and data rebuild features ensure that your data is safe even in the event of hardware failure or power loss.