User`s guide

SAS Controller Descriptions 1-3
Copyright © 2009 by LSI Corporation. All rights reserved.
The SAS controllers support the ANSI Serial Attached SCSI standard,
version 2.0. In addition, the controller supports the SATA II protocol
defined by the Serial ATA specification, version 1.0a. Supporting both the
SAS interface and the SATA II interface, the SAS controller is a versatile
controller that provides the backbone of both server and high-end
workstation environments.
Each port on the SAS RAID controller supports SAS devices, SATA II
devices, or both, using the following protocols:
• SAS Serial SCSI Protocol (SSP), which enables communication with
other SAS devices
• SATA II, which enables communication with other SATA II devices
• Serial Management Protocol (SMP), which communicates
topology management information directly with an attached SAS
expander device
• Serial Tunneling Protocol (STP), which enables communication with
a SATA II device through an attached expander
1.2 SAS Controller Descriptions
The 6Gb/s SAS RAID controllers are described as follows:
• The MegaRAID 6Gb/s SAS 9260-4i PCI Express 2.0 Low-Profile
Serial-Attached SCSI/SATA II Disk Array Controller controls four
internal SAS/SATA ports through one SFF-8087 Mini SAS 4i internal
connector.
• The MegaRAID 6Gb/s SAS 9260-8i PCI Express 2.0 Low-Profile
Serial-Attached SCSI/SATA II Disk Array Controller controls eight
internal SAS/SATA ports through two SFF-8087 Mini SAS 4i internal
connectors.
• The MegaRAID 6Gb/s SAS 9260DE-8i PCI Express 2.0 Low-Profile
Serial-Attached SCSI/SATA II Disk Array Controller controls eight
internal SAS/SATA ports through two SFF-8087 Mini SAS 4i internal
connectors and offers data security using disk encryption.
• The MegaRAID 6Gb/s SAS 9280-8e PCI Express 2.0 Low-Profile
Serial-Attached SCSI/SATA II Disk Array Controller controls eight