IBM ServeRAID M5025, Руководство пользователя

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1-6 Overview
Figure 1.1 Example of a SAS Direct-Connect Application
Figure 1.2 shows an example of the ServeRAID M5025 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
Flash ROM/
SAS
PCI Express
RAID Controller
SAS/SATA II Device
32-Bit Memory
Address/Data
Bus
PSBRAM/
I
2
C
SAS/SATA II Device
SAS/SATA II Device
SAS/SATA II Device
PCI Express Interface
I
2
C
Interface
NVSRAM
LSISASx12
Flash ROM/
NVSRAM/
SRAM
I
2
C/UART
LSISASx12
SAS/SATA II
Drives
PCI Express Interface
SAS/SATA
Drives
SAS/SATA II
Drives
SAS/SATA II
Drives
SAS/SATA II
Drives
8
SRAM
SRAM SDRAM
Peripheral
Bus
72-bit DDR/DDR2
with ECC
Interface
LSISAS2108
PCI Express to SAS ROC
SAS RAID Controller
Expander
Expander