Avago Technologies MegaRAID SAS 8204ELP - Manual (Page 17)

MegaRAID SAS RAID Controllers User’s Guide 1-1
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Chapter 1
Overview
This section provides an overview of the RAID controllers with RAID
control capabilities. It consists of the following sections:
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Section 1.1, “Overview”
•
Section 1.2, “SAS Controller Descriptions”
•
Section 1.3, “General Description”
•
Section 1.4, “Configuration Scenarios”
•
Section 1.5, “Benefits of the SAS Interface”
•
Section 1.6, “Summary of SAS RAID Controller Characteristics”
•
Section 1.7, “Hardware Specifications”
•
Section 1.8, “Technical Support”
1.1 Overview
The MegaRAID SAS controllers are high-performance intelligent PCI
Express-to-SCSI/Serial ATA II adapters with RAID control capabilities.
RAID controllers provide reliability, high performance, and fault-tolerant
disk subsystem management. They are an ideal RAID solution for the
internal storage of workgroup, departmental, and enterprise systems.
RAID controllers offer a cost-effective way to implement RAID in a server.
SAS technology brings a wealth of options and flexibility with the use of
SAS and Serial ATA (SATA) II devices within the same storage
infrastructure. However, SAS and SATA devices bring individual
characteristics that make each one a more suitable choice depending on
your storage needs. MegaRAID gives you the flexibility to combine these
two similar technologies on the same controller, within the same
enclosure, and in the same virtual disk.