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11
Driver parameters
These parameters can be set by hfcmgr or hfcmputil.
The symbols such as "[Windows only]", "[Linux only]" or "[RHEL5 or 6 only]" indicate that the
parameter is only available for the Operating System.
hfcmgr higher than or equal to version 8.0
This section refers to the hfcmgr version higher than or equal to 8.0. For hfcmgr version lower
than 8.0, please refer to p163. hfcmgr version can be checked by executing a command,
"hfcmgr -g". For details, refer to "Display General Information" section. If this manual is available
on online, it is easy to jump to the descriptions of each option in the "Display General
Information" section, by clicking its name in the table below. Refer to the descriptions to confirm
available configurations.
[Detailed description]
Displayed entry (Specified parameter)
Description
Connection Type
(-p ct)
Specify the connection type of a FC path between Hitachi Fibre Channel Adapter and the device attached
to it. If "auto" is specified, this product negotiates with the device connected to it and automatically sets the
connection type to "Arbitrated Loop" or "Point to Point" mode, depending on the situations. Usually, this
parameter does not need to be changed manually.
If LPAR manager is installed and LPAR is used on it, this parameter cannot be changed in the guest OS.
Refer to HVM section in Hitachi Compute Blade User's Guide for details.
Refer to the table below for the descriptions of the displayed values.
Displayed value
Point to Point[fabric]
Point to Point
FC-AL[fabric]
FC-AL
Multiple PortID
(-p mpid)
Hitachi Fibre Channel Adapter can emulate FC-SW virtually. This function depends on the combination of
Connection Type and this option value. For details, refer to HITACHI Fibre Channel Adapter USER'S
GUIDE (BIOS/EFI Edition).
Link Speed
(-p sp)
Specify the link speed of a FC path between Hitachi Fibre Channel Adapter and the device attached to it.
The relations between specified value and the Link Speed are as follows.
<Specified Parameter>
1
2
4
8
16
If "auto" is specified, this product negotiates with the device connected to it and automatically sets the link
speed to a suitable value, depending on the situations. Usually, this parameter does not need to be
changed manually.
If LPAR manager is installed and LPAR is used on it, this parameter cannot be changed in the guest OS.
Refer to HVM section in Hitachi Compute Blade User's Guide for details.
Description
Point to Point (FC-SW Connection)
Point to Point (Direct Connection)
Fibre Channel Arbitrated Loop (FC-SW Connection)
Fibre Channel Arbitrated Loop (Direct Connection)
<Link Speed>
1Gbps
2Gbps
4Gbps
8Gbps
16Gbps
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