IBM Redbooks ServeRAID-MR10i, User Manual

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2-10 ServeRAID-MR10i SAS/SATA Controller Hardware Installation
Note: See the Warranty and Support Information document for
the replacement battery part number and battery-disposal
instructions.
Follow these steps to replace a failed controller with data in the
transportable battery backup unit.
Step 1. Review all safety information provided with the server; then,
power down the server and the drives.
Step 2. Remove the failed controller from the system.
Step 3. Remove the iBBU from the failed controller.
Step 4. Insert the iBBU into the replacement controller.
Step 5. Insert the replacement controller into the system.
Step 6. Turn on the power to the system.
The controller then reads the disk configuration into NVRAM
and flushes cache data to the virtual disks.
Note: See Section 5.1, “Installing the iBBU on the ServeRAID-
MR10i Controller” for installation instructions for the iBBU.
2.6 After Installing the ServeRAID-MR10i Controller
After the ServeRAID-MR10i controller installation, you must configure the
ServeRAID-MR10i controller and install the operating system driver. The
ServeRAID-MR Software User’s Guide instructs you on the configuration
options and how to set them on your ServeRAID-MR10i controller. The
ServeRAID-MR Device Driver Installation User’s Guide provides detailed
installation instructions for operating system drivers.
ServeRAID-MR10i User’s Guide 3-1
Chapter 3
ServeRAID-MR10i
SAS/SATA Controller
Characteristics
This chapter describes the characteristics of the ServeRAID-MR10i
SAS/SATA Controller. It consists of the following sections:
Section 3.1, “ServeRAID-MR10i SAS/SATA Controller”
Section 3.2, “ServeRAID-MR10i Controller Characteristics”
Section 3.3, “Technical Specifications”
3.1 ServeRAID-MR10i SAS/SATA Controller
The ServeRAID-MR10i SAS/SATA Controller is a dual PHY, SAS
PCI Express adapter and is used in a system with a PCI Express slot
PCI Express goes beyond the PCI specification in that it is intended as
a unifying I/O architecture for various systems: desktops, workstations,
mobile, server, communications, and embedded devices.
The following subsections provide graphics and connector information for
the ServeRAID-MR10i controller.
The ServeRAID-MR10i PCI Express Disk Array Storage Adapter has one
LSISAS1078 ROC (RAID-on-chip) processor that controls eight internal
SAS/SATA ports through two SAS 4x internal connectors.
This subsection provides the board layout and connector information for
the ServeRAID-MR10i controller, which has eight internal SAS/SATA
connectors.
Figure 3.1 displays the connectors on the controller, while
Table 3.1 describes them.
3-2 ServeRAID-MR10i SAS/SATA Controller Characteristics
Figure 3.1 Card Layout for the ServeRAID-MR10i Controller
Table 3.1 ServeRAID-MR10i Controller – Connectors
Connector Description Type Comments
J1 Board-to-board
connector for battery
backup unit
daughter card
20-pin
connector
Provides an interface to the
daughter card that contains the
battery backup unit.
J2 Universal
Asynchronous
Receiver/Transmitter
debugging
4-pin
connector.
Reserved for IBM
®
use.
J3 Individual Activity
LED header for eight
SAS ports
16-pin
connector
Provides an LED interface
individually to eight SAS ports. The
LED indicates activity on individual
drives.
J4 Individual Fault LED
header for eight SAS
ports
16-pin
connector
Provides an LED interface
individually to eight SAS ports. The
LED indicates errors on individual
drives.
J5 Debug connector 2-pin
connector
Reserved for IBM use.
J6 Board Default
Debug
2-pin
connector
Reserved for IBM use.
ServeRAID-MR10i Controller Characteristics 3-3
3.2 ServeRAID-MR10i Controller Characteristics
Table 3.2 shows the general characteristics for the ServeRAID-MR10i
controller.
The ServeRAID-MR10i controller ensures data integrity by intelligently
validating the compatibility of the SAS domain. The controller uses
Fusion-MPT architecture, which allows for thinner drivers and better
performance.
J7 Cache Write
Pending LED
2-pin
connector
The connector for the enclosure
LED. It provides a signal that
indicates when the on-board cache
contains data and a write from the
cache to the physical disks is
pending. Optional.
J8 Ports 0–3 x8 SAS
Ports
The x8 Mini SAS 4i ports connect
the cables from the RAID controller
to SAS or SATA II physical drives
or to a SAS expander.
J9 Ports 4–7 x8 SAS
Ports
The x8 Mini SAS 4i ports connect
the cables from the RAID controller
to SAS or SATA II physical drives
or to a SAS expander.
J10 IPMI-style SMBus
(System Manage-
ment)/I
2
C header
3-pin
shielded
header
Provides enclosure management
support.
Table 3.1 ServeRAID-MR10i Controller – Connectors (Cont.)
Connector Description Type Comments
Table 3.2 ServeRAID-MR10i Characteristics
Flash
ROM
1
1. For boot code and firmware.
Serial
EEPROM
2
2. For BIOS configuration storage.
SAS Data Transfers SCSI Features
SCSI
Termination
Yes Yes Up to 3 Gbits/s per port Plug and Play
Scatter/Gather
Activity LED
Active
3-4 ServeRAID-MR10i SAS/SATA Controller Characteristics
3.3 Technical Specifications
The design and implementation of the ServeRAID-MR10i controller
minimizes electromagnetic emissions, susceptibility to radio frequency
energy, and the effects of electrostatic discharge. The controller carries
the following marks and certifications:
CE mark
C-Tick mark
FCC Self-Certification logo
Canadian Compliance Statement
Korean MIC
Taiwan BSMI
Japan VCCI
In addition, the adapter meets the requirements of CISPR Class B.
The ServeRAID-MR10i controller and the intelligent Battery Backup Unit
(iBBU) are CSA C22.2 No. 60950-1, UL 60950-1 First Edition listed
Accessory, UL file number E257743.
3.3.1 Storage Adapter Specifications
Table 3.3 lists the specifications for the ServeRAID-MR10i controller.
Table 3.3 ServeRAID-MR10i Controller Specifications
Specification ServeRAID-MR10i Controller
Processor
(PCI Express Host
Controller to PCI
Secondary I/O
Controller)
LSISAS1078 ROC device with Integrated PowerPC
processor
Operating Voltage +3.3 V, +12 V
Card Size Standard height, half-length PCI Express adapter
card size (4.376" x 6.6")
Array Interface
to Host
PCI Express Rev 1.0a
Technical Specifications 3-5
3.3.2 Array Performance Features
Table 3.4 shows the array performance features of the ServeRAID-
MR10i controller.
Type of Drives
Supported
Serial Attached SCSI (SAS) and Serial ATA II (SATA II)
PCI Express Bus
Data Transfer Rate
Up to 2.5 Gbits/s per lane
x8 lane width (with support for downshifting for
motherboards with x1 and x4 connections)
Up to 2 Gbytes/s per direction for SAS x8 cards
(4 Gbytes/s total)
Serial Port 3-pin RS232-compatible connector (for manufacturing
use only)
SAS Controller(s) One LSISAS1068 Single SAS controller
SAS Bus Speed 3 Gbits/s
SAS Ports Two SAS connectors with four SAS ports each
Cache Configuration Integrated 128 Mbyte - 256 Mbyte Double Data Rate II
667 MHz SDRAM intelligent battery backup unit
Size of Flash ROM
for Firmware
4 Mbytes
Nonvolatile Random
Access Memory
(NVRAM)
32 Kbytes for storing RAID configuration
Table 3.3 ServeRAID-MR10i Controller Specifications (Cont.)
Specification ServeRAID-MR10i Controller
Table 3.4 Array Performance Features
Specification ServeRAID-MR10i Controller
PCI Express Host Data Transfer
Rate
2.5 Gbits/s per lane
Drive Data Transfer Rate 3.0 Gbits/s per lane
Maximum Scatter/Gathers 26 elements
Maximum Size of I/O Requests 6.4 Mbytes in 64 Kbyte stripes
Maximum Queue Tags per Drive As many as the drive can accept
3-6 ServeRAID-MR10i SAS/SATA Controller Characteristics
3.3.3 Fault Tolerance
Table 3.5 shows the fault tolerance features of the ServeRAID-MR10i
controller.
3.3.4 Electrical Characteristics
All power is supplied to the ServeRAID-MR10i controller through the PCI
Express 3.3V rails and the 12V rail. Onboard switching regulator circuitry
operating from the 3.3V rails and the 12V rail provide the necessary
voltages. The following states determine the typical current consumption
of the controller:
State 1: During a hard reset
State 2: During a disk stress test
State 3: While sitting idle at the DOS prompt
Stripe Sizes 8, 16, 32, 64, or 128 Kbytes
Maximum Number of Concurrent
Commands
255
Support for Multiple Initiators Yes
Table 3.4 Array Performance Features (Cont.)
Specification ServeRAID-MR10i Controller
Table 3.5 Fault Tolerance Features
Specification ServeRAID-MR10i Controller
Support for SMART
1
1. The Self Monitoring Analysis and Reporting Technology (SMART) detects
up to 70 percent of all predictable disk drive failures. In addition, SMART
monitors the internal performance of all motors, heads, and drive
electronics.
Yes
Optional Battery Backup for
Cache Memory
iBBU battery backup. 4.8V/880mAH battery
pack; up to 72 hours of data retention for
512 Mbytes
Drive Failure Detection Automatic
Drive Rebuild Using Hot Spares Automatic
Parity Generation and Checking Yes