host bus adapter for Windows and Linux installation guide
4–7
Troubleshooting
SCSI Address Mapping
The driver emulates six SCSI buses per HBA to map all 126 possible AL_PA to Target
IDs.
The first bus is a dummy bus used to delay the initial inquiry scan until after discovery
completes. The 31 target IDs per bus are then mapped to either ascending or
descending SEL_IDs (based on the ScanDown registry parameter).
NOTE: The driver uses the first bus if the parameter MapBus0=1 is used.
Fabric Device Mapping
In a fabric (switched) environment, devices are initially created in the order that they
are returned from the Simple Name Server (SNS). Once created (at boot), the devices
continue to be tracked based on:
–WWPN:HardAddress=0;MapNodeName=0
–NodeName:HardAddress=0;MapNodeName=1
–D_ID:HardAddress=1; (MapNodeName=don’t care)
0x22
IOERR_RESERVED
0x23
IOERR_RESERVED
0x24
IOERR_RESERVED
0x25
IOERR_ABORT_MULTI_REQUESTED
0x26
IOERR_RESERVED
0x27
IOERR_RESERVED
0x28
IOERR_LINK_BUFFER_SHORTAGE
0x29
IOERR_RCV_XRIBUF_WAITING
Table 4–4: Parameter Error Values Valid only when CmdStat=0x3 (Continued)
0x12 Offset
Explanation (Continued)