Acer SmartRAID V Bedienungsanleitung Seite 12

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Seitenansicht 11
xii
SmartRAID V User’s Manual
SmartRAID V Architecture........................................................................................... 7-22
ASPI Protocol ........................................................................................................... 7-22
I2O Messaging Protocol ........................................................................................... 7-22
Command Processing .......................................................................................... 7-23
Command Overlapping ......................................................................................... 7-23
Command Queuing ............................................................................................... 7-24
Auto Request Sense ............................................................................................. 7-24
Byte/Word Alignment ............................................................................................ 7-24
Scatter/Gather ...................................................................................................... 7-24
PCI Data Transfer and Bus Mastering ......................................................................... 7-25
On-Board Microprocessor ........................................................................................... 7-26
SCSI Interface ............................................................................................................. 7-26
SCSI Device IDs ...................................................................................................... 7-26
Logical Unit Numbers (LUN) .................................................................................... 7-27
Bridge Controllers .................................................................................................... 7-27
Commands and Messages.....................................................................................7-27
Disconnect/Reconnect ............................................................................................. 7-27
Transfer Padding and Residue Reporting ................................................................ 7-28
Single-Ended and Differential SCSI ......................................................................... 7-28
Multi-Mode SCSI ...................................................................................................... 7-29
Wide SCSI ............................................................................................................... 7-29
SCSI Transfer Rate .................................................................................................. 7-29
Cabling Single-Ended SCSI ..................................................................................... 7-30
Cabling Ultra2 (LVD) SCSI ....................................................................................... 7-32
SCSI Termination ..................................................................................................... 7-33
TERMPWR .............................................................................................................. 7-34
Fibre Channel Arbitrated Loop (FC-AL)....................................................................... 7-35
DPT I2O BIOS............................................................................................................. 7-36
Assembly Drawings .............................................................................A-1
PM3755F....................................................................................................................... A-2
PM3755U2B .................................................................................................................. A-3
PM3754U2 .................................................................................................................... A-4
PM1554U2, PM2554U2 and PM2654U2 ....................................................................... A-5
SX4054U2-1 Bus Expansion Module ............................................................................ A-6
SX4054U2-2 Bus Expansion Module ............................................................................ A-7
SX4055U2-1 Bus Expansion Module ............................................................................ A-8
SX4055U2-2 Bus Expansion Module ............................................................................ A-9
SX4055F FC-AL Bus Expansion Module .................................................................... A-10
RA4050 RAID Accelerator........................................................................................... A-11
BB4050 Battery Module .............................................................................................. A-12
Troubleshooting ...................................................................................B-1
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