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Intel® Server RAID Controller U3-1 User’s Manual Rev 1.0 A-3
Hardware Details
A.2.2 Intel® Server RAID Controller U3-1 Specifications
A.3 Disk Drive Connectivity
A.3.1 SCSI Specifics
This section provides information on supported SCSI technology and form factors.
A.3.1.1. Drives Supported
SRCU31 supports up to 15 SCSI devices. It supports up to 15 disks (or 14 disks if one of the SCSI
ID’s is occupied by an Intelligent SCSI Enclosure).
Table A-1. Hardware Architecture Features
Component Feature
CPU
Intel i960® RN I/O Processor, 100MHz, RISC 32-bit core. This
controller features hardware XOR support for highspeed RAID
5 parity calculations.
Memory/Cache
3.3V, unbuffered PC100, ECC, SDRAM DIMM expandable to
32, 64 or 128MB
Cache
Downstream Write Through, Full and Sequential Write-Back -
Selectable per volume.
Firmware ROM Type, Flash EEPROM, 2MBits x 8 (flashable)
PCI Transfer Rate: 264MB/second Burst
Voltages +12V, +5V and 3.3V (all +/- 5%)
Array Interface to Host Interface to Host PCI 2.2
PCI Signaling Capable of being used in a 5 volt or 3.3 volt slot.
Table A-2. Environmental Specifications
Attribute Conditions
Temperature
Operating 0° to +55° C
Storage -40° to +70° C
Humidity
Operating 90% relative humidity
Storage 90% relative humidity
Form Factor
Length 6.75 inches
Height 4 inches
Table A-3. SCSI Controller Technology
SCSI Controller Supported Description
SCSI Controller: LSI SYM53C1010 LSI Ultra160 SCSI Controller