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A Comprehensive Interpretation of RAID Cards: From Basic Knowledge to Brand Selection

Comprehensive Guide to Understanding RAID Cards in Servers

1. What is a RAID Card?

RAID Card Overview

RAID Card, short for Redundant Array of Independent Disks, is a technology that combines multiple hard drives into a single logical drive. This enhances capacity, performance, reliability, and manageability. RAID cards play a crucial role in servers, providing more efficient and secure data storage.

SAS Card, on the other hand, is a low-end hard drive expansion card. Compared to RAID cards, SAS cards lack cache support and have significant performance differences, particularly in RAID levels 0 and 1.

Onboard RAID refers to the SATA controller integrated into the server's motherboard PCH. This RAID solution usually only supports SATA drives, lacks cache, has lower performance, and is limited in functionality.

2. Major RAID/SAS Card Brands

In the server market, Broadcom (LSI) RAID cards hold the highest market share. LSI RAID cards are widely recognized for their reliability and performance, with common models based on 3108 and 3508 chips. Many server manufacturers' custom RAID cards are also based on LSI technology.

Broadcom (LSI) RAID Card

Microchip (formerly Adaptec) is another major brand in the server RAID card market. Adaptec was originally owned by PMC, then acquired by Microsemi, and eventually by Microchip. Microchip RAID cards also hold a significant position in the market.

3. LSI Product Roadmap

As a leading RAID card supplier, LSI's product roadmap covers a range of solutions from basic to advanced, catering to different user needs and ensuring efficient data storage and management.

LSI Product Roadmap

4. Detailed Analysis of the LSI 3008 SAS Card

The LSI 3008 is a high-performance SAS card suitable for various server environments, providing exceptional storage solutions. It supports multiple RAID configurations and offers excellent reliability and performance, making it ideal for demanding enterprise applications.

LSI 3008 SAS Card

5. Comparison of LSI RAID Cards and SAS Cards

Understanding the differences in parameters between LSI RAID cards and SAS cards helps in choosing the right storage solution based on specific needs. Different models of RAID and SAS cards vary significantly in terms of performance, cache, and supported RAID levels.

Comparison of LSI RAID Cards and SAS Cards Comparison of LSI RAID Cards and SAS Cards

6. The Relationship Between RAID Cards, Servers, and Hard Drives

1. The Logical Relationship of RAID Cards Within Servers

RAID cards play a critical role within servers, connecting hard drives and providing stable data storage services through array configurations.

Logical Relationship of RAID Cards Within Servers

2. Comparison of RAID Card and Hard Drive Connection Methods

Different RAID cards connect to hard drives in various ways, each with its own advantages. Choosing the appropriate connection method can optimize storage performance.

Comparison of RAID Card and Hard Drive Connection Methods

3. Expansion of Hard Drive Cabinets Using the 9480-8i8e RAID Card

This RAID card model can easily expand hard drive cabinets to meet large-scale storage needs.

Expansion of Hard Drive Cabinets Using the 9480-8i8e RAID Card

4. The Relationship Between NVMe-Supported RAID Cards and Hard Drives

The high-speed data transfer capability of NVMe drives can be further enhanced with NVMe-supported RAID cards.

The Relationship Between NVMe-Supported RAID Cards and Hard Drives

5. RAID Card Cache Protection Mechanism

The cache protection feature of RAID cards ensures the safety of data during transmission, preventing data loss.

RAID Card Cache Protection Mechanism
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