Example Of A Sas Direct-Connect Application; Example Of A Sas Raid Controller Configured With An Lsisasx12 Expander - IBM ServeRAID-MR10M User Manual

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Figure 1.1

Example of a SAS Direct-Connect Application

SAS/SATA II Device
SAS/SATA II Device
SAS/SATA II Device
SAS/SATA II Device
Figure 1.2 shows an example of the ServeRAID-MR10M controller
configured with an LSISASx12 expander that is connected to SAS disks,
SATA II disks, or both.
Figure 1.2 Example of a SAS RAID Controller Configured with an
LSISASx12 Expander
LSISASx12
Expander
SAS/SATA II SAS/SATA II
Drives
Overview
SAS
PCI Express
RAID Controller
PCI Express Interface
PCI Express Interface
8
SAS RAID Controller
LSISAS1078
PCI Express to SAS ROC
SAS/SATA
Drives
Drives
32-Bit Memory
Address/Data
Flash ROM/
Bus
PSBRAM/
NVSRAM
2
I C
Interface
2
I
Peripheral
Bus
Flash ROM/
NVSRAM/
2
I C/UART
72-bit DDR/DDR2
with ECC
Interface
SDRAM SRAM SRAM
LSISASx12
Expander
SAS/SATA II
SAS/SATA II
Drives
Drives
C
SRAM