IBM Redbooks ServeRAID-MR10i, User Manual

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1-2 Overview
needs. MegaRAID
®
gives you the flexibility to combine these two similar
technologies on the same controller and within the same enclosure.
Note: You cannot mix SAS drives and SATA drives within the
same
virtual disk(s) .
The ServeRAID-MR10i controller is based on the MegaRAID
first-to-market SAS IC technology and proven technology. As the
second-generation PCI Express storage adapter, the ServeRAID-MR10i
controller addresses the growing demand for increased data throughput
and scalability requirements across midrange and enterprise-class server
platforms. IBM
®
offers a family of SAS controllers to address the needs
for both internal and external solutions.
The innovative intelligent Battery Backup Unit (iBBU) is pre-installed on
the ServeRAID-MR10i controller. The iBBU provides cached data
protection, which allows system builders to protect cached data even
during the most catastrophic system failures.
Note: You must charge the battery before use. For more
information about charging the battery, see
Chapter 5,
“Installing the Intelligent Battery Backup Unit” .
The ServeRAID-MR10i controller supports the SAS protocol as
described in the
Serial Attached SCSI Standard , version 1.1 . The
controller also supports the Serial ATA II (SATA II) protocol defined by
the
Serial ATA Specification, Version 1.0a , and the Serial ATAII;
Extension to the Serial ATA Specification, Version 1.1 . SATA II is an
extension to SATA 1.0a. The ServeRAID-MR10i controller is a versatile
controller that provides the backbone of both server and high-end
workstation environments.
Each port on the ServeRAID-MR10i controller supports SAS devices
and/or SATA II devices using the following:
•
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