IBM ServeRAID-MR10is, User Manual

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1-4 Overview
•
You cannot mix Solid State Drives and Solid State SATA Drives in
the same virtual disk
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See Section 3.3.4, “Electrical Characteristics,” for information about
the power requirements, and Section 3.3.5, “Operating and Non-
operating Conditions” for information about the minimum and
maximum temperature ranges
1.3 General Description
The ServeRAID-MR10is controller brings 3.0 Gbit/s Serial Attached SCSI
and 3.0 Gbit/s Serial ATA II performance to host adapter, workstation,
and server designs. The controller supports internal storage devices,
which allows you to use a system that supports enterprise-class SAS
drives and desktop-class SATA II drives. Each ServeRAID-MR10is
controller can connect to drives directly. Simplified cabling between
devices is an additional benefit.
This controller is based on the LSISAS1078DE device. This device is
compliant with the Fusion-MPT architecture and provides a PCI Express
x8 interface.
The controller integrates eight high-performance SAS/SATA II PHYs and
a PCI Express bus master DMA core. Each of the eight PHYs is capable
of 3.0 Gbit/s SAS link rates and 3.0 Gbit/s SATA II link rates.
The LSISAS1078DE device provides an eight-lane, 2.5-Gbit/s PCI
Express host interface, eight 3.0 Gbit/s SAS ports or SATA ports, and a
full-featured, hardware-based RAID implementation. The
LSISAS1078DE device integrates a high-speed DDR/DDR2 SDRAM
interface with a hardware RAID assist engine for parity calculations. The
LSISAS1078DE device provides the maximum benefits of a RAID
system and enables you to configure the system to satisfy your system
requirements.
The LSISAS1078DE device increases system performance and provides
fault-tolerant data storage. The LSISAS1078DE supports data striping
across multiple disks, which reduces disk access time because multiple
disks simultaneously read or write data. The LSISAS1078DE device
backs up data with either data mirroring or a parity block. Either backup
method enables you to recover lost data in the event of a disk failure.