Emulex 3.4 User Manual

The parameter values listed in Table 3 are applicable to driver version 6.20i or later. If you are using a 
version previous to 6.20i, see the Emulex Driver for Solaris User Manual for parameter information.

The LPFC.conf file contains all the driver properties that control driver initialization. In the LPFC.conf file, 
all HBA-specific driver properties have lpfcX-prefix (where X is the driver instance number); e.g., setting 
lpfc0-lun-queue-depth= 20 makes 20 the default number of maximum commands which can be sent to a 
single logical unit (disk). The LPFC man page also provides further device property details.

Note: The fcp-bind-WWNN, fcp-bind-WWPN and fcp-bind-DID driver properties do not 

apply to a specific HBA. They are the global properties. These properties specify a list 
of persistent bindings. Each entry in this list applies to a specific instance of an HBA. 
You can only use one type of binding per HBA.

Note: To override a driver parameter for a single driver-loading session, specify it as a 

driver property to the modload command. For example: # modload /kernel/drv/lpfc 
automap=0 (for 32-bit platforms) or modload /kernel/drv/sparcv9/lpfc automap=0 (for 
64-bit platforms). This will load Emulex's SCSI support driver with automap set to 0 
for this session.

ack0

Controller 
Specific

0

0=Off

1=On

No

Use ACK0 for class 2. If ack0 
is 1, the HBA will try to use 
ACK0 when running Class 2 
traffic to a device. If the device 
doesn’t support ACK0, then 
the HBA will use ACK1. If 
ack0 is 0, only ACK1 will be 
used when running Class2 
traffic.