hp StorageWorks fca2355 dual channel PCI host bus adapter - installation guide

4–8 fca2355 dual channel PCI host bus adapter installation guide
Troubleshooting
Private Loop Device Mapping
In a private loop environment (FC-AL, no switch), devices are initially created based
on a fixed address ordering. 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)
This section identifies the initial fixed mapping between the Windows NT
bus/target/lun and a Fibre Channel native address (AL_PA/SEL_ID). There are two
potential mappings based on a registry parameter [ScanDown=0 (driver default); use
*, ScanDown=1;].
The index into Table 4–5 can be derived by:
#define TARGETS_PER_BUS 32
i = (Srb->PathId > 0) ? Srb->PathId-1 : 0; //Bus 0 = dummy bus nodeInx =
((I * (TARGETS_PER_BUS-1)) + Srb->TargetId;w
Table 4–5: Current Private Loop Device Mapping
Bus #
0
Target#
0-31
Lun#
0-7
*AL_PA
None
SEL_ID
None
**AL_PA
None
SEL_ID
None
IMPORTANT:
*
0 0-7 0x01 0x7D 0xEF 0x00
1 0-7 0x02 0x7C 0xE8 0x01
2 0-7 0x04 0x7B 0xE4 0x02
3 0-7 0x08 0x7A 0xE2 0x03
4 0-7 0x0F 0x79 0xE1 0x04
5 0-7 0x10 0x78 0xE0 0x05
6 0-7 0x17 0x77 0xDC 0x06
7 0-7 0x18 0x76 0xDA 0x07
8 0-7 0x1B 0x75 0xD9 0x08
9 0-7 0x1D 0x74 0xD6 0x09
*Use this translation if registry ScanDown = 0 (default).
**Use this translation if registry ScanDown = 1.
***If MapBus0= 1; then the device addressing starts with Bus#0, not Bus#1.