Intel 12Gb/s, Руководство пользователя

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12Gb/s Intel® RAID Controllers User Guide 3
Note: All of these RAID controllers provide an x8 PCIe 3.0 interface.
12Gb/s Intel
®
RAID Controller Detailed Descriptions
The 12Gb/s Intel
®
RAID Controllers are described in detail in the following subsections.
Intel
®
RAID Controller RS3WC080
The Intel
®
RAID Controller RS3WC080 is a PCIe 3.0 Low-Profile SAS Controller that
controls eight internal SAS/SATA ports through two SFF-8643 mini-SAS HD-4i internal
connectors.
Intel
®
RAID Controller RS3DC040 and RS3DC080
•
The Intel
®
RAID Controller RS3DC040 is a PCIe 3.0 Low-Profile SAS Controller
that controls four internal SAS/SATA ports through one SFF-8643 mini-SAS HD-
4i internal connector.
•
The Intel
®
RAID Controller RS3DC080 is a PCIe 3.0 Low-Profile SAS Controller
that controls eight internal SAS/SATA ports through two SFF-8643 mini-SAS HD-
4i internal connectors.
Configuration Scenarios
You can use the 12Gb/s Intel
®
RAID Controllers in three main scenarios:
•
Low-end internal SATA configuration : In this configuration, use the RAID
controller as a high-end SATA II or SATA III compatible controller that connects up
to eight drives either directly or through a port expander. This configuration is
mostly for low-end or entry servers. An out-of-band I
2
C bus provides enclosure
management. Side bands of both types of internal SAS connectors support the SFF-
8485 (SGPIO) interface.
•
Midrange internal SAS configuration : This configuration is like an internal
SATA configuration, but with high-end SAS drives. This configuration is more
suitable for low-range to midrange servers.
•
High-end external SAS/SATA configuration : This configuration is for external
connectivity using SATA II drives, SATA III drives, SAS drives, or combinations of
SATA and SAS drives. External enclosure management is supported through in-
band, SCSI-enclosed storage. The configuration must support STP and SMP.