Avago Technologies MegaRAID SAS 8204ELP - Manual (Page 16)

1-2 Overview
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two similar technologies on the same controller, within the same
enclosure, and in the same virtual disk.
Note: LSI recommends that you carefully assess any decision to
mix SAS and SATA drives within the same virtual disks.
Although you can mix drives, LSI strongly discourages the
practice.
The MegaRAID 1078-based SAS RAID controllers are based on the LSI
first-to-market SAS IC technology and proven MegaRAID technology. As
second-generation PCI Express RAID controllers, the MegaRAID SAS
RAID controllers address the growing demand for increased data
throughput and scalability requirements across midrange and enterprise-
class server platforms. LSI offers a family of MegaRAID SAS RAID
controllers addressing the needs for both internal and external solutions.
The following battery backup units provide cached data protection and
allow system builders to protect cached data even during the most
catastrophic system failures:
•
LSI intelligent Battery Backup Unit 01 (LSIiBBU-01)
•
LSI intelligent Battery Backup Unit 05 (LSIiBBU-05)
•
LSI intelligent Battery Backup Unit 06 (LSIiBBU-06)
•
LSI intelligent Battery Backup Unit 07 (LSIiBBU-07)
•
LSI intelligent Transportable Battery Backup Unit 03 (LSIiTBBU-03)
Refer to the MegaRAID Battery Backup Unit User’s Guide on the
MegaRAID Universal Software Suite CD for more information about
these batteries.
The SAS controllers support the ANSI Serial Attached SCSI standard,
version 1.1. In addition, the controller supports the SATA II protocol
defined by the Serial ATA specification, version 1.0a. Supporting both the
SAS and SATA II interfaces, 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