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This is the primary reference and user’s guide for the Intel® RAID Controller SASUC8I,
which can be used to manage SAS and SATA II disk drives. It contains installation
instructions and specifications.
For details on how to configure the storage adapters, and for an overview of the software
drivers, see the Intel
Audience
This document assumes that you have some familiarity with storage disk controllers,
RAID technology, and related support devices. The people who benefit from this book
are:
• Engineers who are designing an Intel
• Anyone installing an Intel
Organization
This document includes the following chapters and appendixes:
• Chapter 1 provides a general overview of the Intel
• Chapter 2 describes the procedures for installing the Intel
SASUC8I.
• Chapter 3 provides the characteristics and technical specifications for the Intel
RAID Controller SASUC8I.
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IT/IR RAID Software User’s Guide on the Resource CD.
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RAID Controller SASUC8I for a system.
®
RAID Controller SASUC8I in a RAID system.
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RAID Controller SASUC8I.
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RAID Controller
®
• Appendix A lists and explains the terms and abbreviations used in this manual.
Related Publication
The Intel® IT/IR RAID Software User’s Guide on the Resource CD that is included with
the RAID controller.
This chapter provides a general overview of the Intel® RAID Controller SASUC8I. It
consists of the following sections:
•Summary of SAS RAID Controller Features
•Benefits of Serial-Attached SCSI (SAS)
®
The Intel
provides reliable and fault-tolerant disk subsystem management. This is an ideal RAID
solution for the internal large capacity storage needs of mid to low-end servers and
workstations for use by workgroups and departmental-sized organizations or individuals.
The Intel
a server for internal storage.
The SAS controller allows you to use SATA II and SAS hard disk drives in the same
system, so you can take advantage of the benefits of each type of drive; however, Intel
does not recommend mixing SAS and SATA II drives in the same enclosure.. The
controller supports up to 14 physical devices in IR mode and up to 122 devices, including
expander devices, in IT (non-RAID) mode. For more information about the use of
expanders, see the ANSI SAS Standard Specification, Version 1.0.
As the second generation PCI Express* storage adapter, the Intel
SASUC8I addresses the growing demand for increased data throughput and scalability
requirements across mid to low-end servers and workstations. Simplified cabling between
drives is an additional benefit.
RAID Controller SASUC8I is a PCI Express* SAS RAID controller. It
®
RAID Controller SASUC8I offers a cost-effective way to implement RAID in
®
RAID Controller
Summary of SAS RAID Controller Features
Note: In this document, the term low-profile refers to the height, not the length, of a PCI add-in
card.
®
The Intel
•An LSI* 1068E SAS (including SATA) controller.
•Eight independent internal ports provided via two SFF8087 connectors.
•Support for both enterprise-class SAS devices and enterprise-class SATA II drives.
•Support for up to 14 SAS or SATA II drives and 2 logical drives in IR mode.
•PCI Express* connector that fits into a x8 PCI Express* (or larger) slot capable of
RAID Controller SASUC8I is a low-profile SAS RAID adapter with:
2.5 Gbps per lane over PCI Express* x1, x4, or x8.
Page 12
Usability
The SAS controller supports the ANSI Serial-attached SCSI (SAS) Standard, Version 1.0.
In addition, the controller supports the Serial ATA (SATA) protocol defined by the Serial ATA Specification, Version 1.0a. The SAS controller is a versatile controller that
supporting both the SAS and SATA interfaces and provides the backbone of both server
and workstation environments.
Protocols supported include:
•Serial SCSI Protocol (SSP): Communication with other SAS devices.
•SATA II Protocol: Communication with SATA II devices.
•Serial Management Protocol (SMP): Topology management information sharing
with expanders.
•Serial Tunneling Protocol (STP): Support for SATA II through expander interfaces.
•Smaller, thinner cabling with serial point-to-point 3.0 Gbps data transfer rates.
•Allows mixed connections to SAS or SATA II targets.
•Support for non-disk devices and mixed capacity drives.
•Support for RAID levels 0, 1, 1E, and 10E.
•Hot spare with auto rebuild if an array drive fails.
•Fixed RAID stripe size of 64 KB.
•Advanced array configuration and management utilities that provide drive roaming.
•An upgradeable Flash ROM interface.
•Allows for staggered spin-up, hot plug, lower power consumption.
Redundancy and Error Handling
•In-band SES enclosure management support, including fault LEDs (Expander
backplane must be used in order to support fault LED. No fault LED option is
possible or expected in direct HDD connect mode).
•Activity and fault indicators per drive, port selector (dual-port drives).
•Auto-detection of failed drives with transparent rebuild.
•Commands are retried up to four times.
•SMART technology predicts failures of drives and electronic components for drives
in IR mode.
•Firmware provides best effort to recognize an error and recover from it if possible.
•Failures are logged from controller and drive firmware.
•Failures are logged in Intel
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RAID Web Console 2, CIM, and LEDs.
•Multiple cache options provide choice of speed and redundancy:
—Disk Write Cache: The data written / (done) signal is returned when data is
written to the drive or only to the drive’s cache.
✧ On (default): Write-back mode enabled. Faster, because it does not wait for
the disk, but data will be lost if power is lost.
✧ Off: Write-through mode enabled. Slower, but ensures data is on the disk.
•Redundancy through:
—Configuration stored in non-volatile RAM and on the drives (COD).
—Hot-swap support.
SAS and SATA Features
•Provides eight independent PHY, each supporting 3.0 Gbps and 1.5 Gbps SAS and
SATA data transfers.
•Scalable interface that supports up to 14 physical devices and 2 logical devices in IR
mode, or up to 122 physical devices in IT mode.
•Transfers data using SCSI information units.
•Supports SSP to enable communication with other SAS devices.
•Supports SMP to communicate topology management information.
•Supports either single PHY or wide ports consisting of 2, 3, or 4 PHY within a
single quad port.
•Allows addressing of multiple SATA targets through an expander if using SATA 2.0-
compliant hard disk drives.
Operating System Support
The Intel® RAID Controller SASUC8I supports major operating systems, including:
•Microsoft Windows Server 2008*, Microsoft Windows Server 2003*, and Microsoft
Windows XP*
•Red Hat* Enterprise Linux 4.0 and 5.0
•SuSe* Linux Enterprise Server 9 and 10
Note: The operating systems supported by this controller may not be supported by your server
board. See the tested operating system list for your server board at
http://support.intel.com/support/motherboards/server/. See also the tested hardware and
operating system list for the Intel
system you are using with the controller is supported.
®
RAID Controller SASUC8I to make sure the operating
SAS is a serial, point-to-point, enterprise-level device interface that leverages the proven
SCSI protocol set. SAS is a convergence of the advantages of SATA, SCSI, and FC, and is
the future mainstay of the enterprise and high-end workstation storage markets. SAS
offers a higher bandwidth per pin than parallel SCSI, and improves signal and data
integrity.
The SAS interface uses the proven SCSI command set to ensure reliable data transfers,
while providing the connectivity and flexibility of point-to-point serial data transfers. The
serial transmission of SCSI commands eliminates clock skew challenges. The SAS
interface provides improved performance, simplified cabling, smaller connectors, lower
pin count, and lower power requirements when compared to parallel SCSI.
SAS controllers leverage a common electrical and physical connection interface that is
compatible with Serial ATA technology. The SAS and SATA protocols use a thin, 7-wire
connector instead of the 68-wire SCSI cable or 40-wire ATA cable. The SAS/SATA
connector and cable are easier to manipulate, allow connections to smaller devices, and do
not inhibit airflow. The point-to-point SATA architecture eliminates inherent difficulties
created by the legacy ATA master-slave architecture, while maintaining compatibility with
existing ATA firmware.
To install the RAID Controller, follow these steps:
1. Power off the computer, all drives, enclosures, and system components. Remove
the power cord from the computer.
2. Remove the chassis cover and access the PCI Express* add-in card slots. For
instructions, see your server chassis documentation.
3. Align the controller’s connector with a x8 PCI Express* slot on the server board.
4. Press down gently but firmly to ensure that the card is properly seated in the slot, as
shown in Figure 1. Secure the bracket to the computer chassis.
5. Connect the SAS/SATA cables from the backplane (or hard drives) to the RAID
Controller (see Figure 2). Make sure the cables are properly connected to the
controller.
®
Figure 2. Attaching cables to the Intel
RAID Controller SASUC8I
Note: System throughput problems can occur if non-standard SAS cables are used.
To minimize the potential for problems:
✧ Use cables no longer than ten meters for SAS and one meter for SATA. It is
better to use the shortest possible cables. The cable length should be reduced
by about one foot (.33 meters) if using a backplane.
✧ You may connect one device per SATA/SAS cable either as a device or as an
expander.
✧ Route SAS cables carefully.
✧ Use only “straight” SAS cables, not “cross-over” SAS cables.
6. Replace components you needed to remove to access the PCI Express* add-in card
slot. For instructions, see your server chassis documentation.
7. Reinstall the chassis cover and reconnect the power cord(s). For instructions, see
your server chassis documentation.
8. Reconnect any peripheral items you needed to disconnect.
9. Turn the power on to the server and hard drives. As the server powers up, listen to
be sure that the SAS and SATA devices are powered up before or at the same time
as the computer boots.
10. Watch the boot process until you see a BIOS message informing you of the key
combination that you need to press to enter the LSI Corporation MPT SAS BIOS
Configuration Utility*. A message similar to the following appears:
Press <CTRL> + <C> to start the LSI SAS Configuration Utility
This message times out after several seconds. If you miss it, you will pass the option to get
into the LSI Corporation MPT SAS BIOS Configuration Utility*.
The firmware takes several seconds to initialize and then displays the Intel
Controller SASUC8I number and firmware version. The numbering of the controllers
follows the PCI slot scanning order used by the server board.
Connecting the Cables
This section describes the cables used on the SAS controller and provides instructions for
connecting SAS and SATA hard disk drives to the SAS RAID controller.
Note: Use only “straight” SAS cables, not “cross-over” SAS cables.
A SATA connector consists of a signal connector and a power connector. The SAS
connector adds a bridge (primary physical link) between the signal connector and the
power connector. This means SAS backplane connectors can accept either drive type, but
SATA backplane connectors can ONLY accept SATA drives. Figure 3 shows these
connectors.
®
RAID
Figure 3. SAS and SATA Plugs and SAS Backplane Connector
After performing the Intel® RAID Controller SASUC8I installation, you must configure
the storage adapter and install the operating system driver. The IntelSoftware User’s Guide provides configuration options and instructions for the Intel
RAID Controller SASUC8I, as well as detailed installation instructions for operating
system drivers.
Replacing a Controller
To replace a failed controller, follow these steps .
1. Power off the computer and all drives, enclosures, and system components.
Remove the power cord.
2. Remove the chassis cover and access the PCI Express* add-in card slots. See your
server documentation for instructions.
3. Disconnect the cable(s) from the RAID controller.
4. Remove the failed controller from the system.
5. Insert the replacement controller into the system. Follow the instructions under
The design and implementation of the Intel® RAID Controller SASUC8I minimizes
electromagnetic emissions, susceptibility to radio frequency energy, and the effects of
electrostatic discharge.
Compatible DevicesMixed capacity, mixed SATA II and SAS in different enclosures; non-disk
Cabling• Small, thin cables that do not restrict airflow
PCI Express* Rev 1.0A, x8 lane width 2.5 Gbps
devices, including expanders
• Shared connectors for multiple drive types
Redundant
Configuration
Enclosure
Management
The host adapters have eight LEDs, labeled A0–A7, that turn green to indicate an activity
condition on any of the eight phys. There are eight Link Not Present LEDs, labeled
LNP0–LNP7, that turn yellow to indicate a fault condition on any of the eight phys. See
Figure 4 for LED locations.
RAID configuration is stored and config on disk (COD)
In-band SES enclosure management support, including fault LEDs
(Expander backplane must be used in order to support fault LED. No fault
LED option is possible or expected in direct HDD connect mode).
The host adapters have two light pipes routed through the PCI bracket. One light pipe
turns green to indicate activity on any phy. The other light pipe is bi-color. It flashes green
to indicate the adapter heartbeat, or it turns yellow when the adapter firmware detects a
fault condition.
•Relative humidity range: 5% to 90% non-condensing
•Maximum dew point temperature: 32°C
The storage and transit environment conditions are:
•Temperature range from -45°C to 105°C (dry bulb).
•Relative humidity range: 5% to 90% non-condensing
Safety Characteristics
The Intel® RAID Controller SASUC8I meets or exceeds the requirements of UL
flammability rating 94 V0. Each bare board is also marked with the supplier name or
trademark, type, and UL flammability rating. For the boards installed in a PCI Express*
bus slot, all voltages are lower than the SELV 42.4 V limit.
The design and implementation minimize electromagnetic emissions, susceptibility to
radio frequency energy, and the effects of electrostatic discharge. The board carries the CE
mark, C-Tick mark, Canadian Compliance Statement, Korean MIC, Taiwan BSMI, Japan
VCCI, FCC Class B and is marked with the FCC Self-Certification logo. The board also
meets the requirements of CISPR Class B.
BIOSBasic Input/Output System. Software that provides basic read/write capability.
Usually kept as firmware (ROM based). The system BIOS on a server board is used
to boot and control the system. The BIOS on your host adapter acts as an extension
of the system BIOS.
ConfigurationThe way a computer is set up; the combined hardware components (computer,
monitor, keyboard, and peripheral devices) that make up a computer system, and the
software settings that allow the hardware components to communicate with each
other.
Device DriverA program that allows a microprocessor (through the operating system) to direct the
operation of a peripheral device.
Domain
Validation
EEPROMElectronically Erasable Programmable Read-Only Memory. A memory chip
External SAS
Device
HostThe computer system in which a storage adapter is installed. It uses the storage
Host Adapter
Board (HAB)
Internal SAS
Device
Main MemoryThe part of a computer’s memory that is directly accessible by the CPU (usually
NVRAMNon-volatile Random Access Memory. An EEPROM (Electronically Erasable
Peripheral
Devices
A software procedure in which a host queries a device to determine its ability to
communicate at the negotiated data rate.
typically used to store configuration information. It provides stable storage for long
periods without electricity and can be reprogrammed. See NVRAM.
A SAS device installed outside the computer cabinet. These devices are connected
together using specific types of shielded cables.
adapter to transfer information to and from devices attached to the SCSI bus.
A circuit board or integrated circuit that provides a device connection to the
computer system.
A SAS device installed inside the computer cabinet. These devices are connected
together using an unshielded ribbon cable.
synonymous with RAM).
Read-Only Memory chip) used to store configuration information. See EEPROM.
A piece of hardware (such as a video monitor, disk drive, printer, or CD-ROM) used
with a computer and under the computer’s control. SCSI peripherals are controlled
through a SAS Intel
SASSerial-attached SCSI. A serial, point-to-point, enterprise-level device interface that
leverages the proven SCSI protocol set. The SAS interface provides improved
performance, simplified cabling, smaller connections, lower pin count, and lower
power requirements when compared to parallel SCSI. SAS controllers leverage a
common electrical and physical connection interface that is compatible with Serial
ATA. The SAS controllers support the ANSI Serial Attached SCSI standard, version
1.0. In addition, the controller supports the Serial ATA (SATA) protocol defined by
the Serial ATA specification, version 1.0a. Each port on the SAS RAID controller
supports SAS and SATA devices.
SAS DeviceAny device that conforms to the SAS standard and is attached to the SAS bus by a
SAS cable. This includes SAS storage adapters (host adapters) and SAS peripherals.