Installing and Managing HP-UX Virtual Partitions (includes A.04.01)

Planning Your System for Virtual Partitions

New Hardware Path Formats (A.02.02)

Chapter 3

New Hardware Path Formats (A.02.02)

Beginning with vPars version A.02.02, the way to specify hardware paths has changed. This was done so that

older vPars configuration databases remain compatible with additional hardware that is being supported.

For example, given a path where its sequential digits are 4 0 1 0 0 0 0, it is not possible to determine

whether this path means a device at "4/0/1/0/0.0.0" or a device at "4/0/1/0/0/0/0.0.0.0.0.0.0". The

former structure is cell/sba/lba/dev/function, and the latter structure is

cell/sba/lba/pci_bridge/dev/function where pci_bridge has the format m/n. Therefore, the following

rules have been created. These rules apply when using either the vPars GUI or the command-line interface.

When entering a hardware path, the sequence and number of slashes (/)

and dots (.) in the hardware path that you input determines the resultant hardware path as follows:

In the above table, padding means to pad using .0 up to six elements after the first dot.

Example Using Legacy Paths

If a path was entered using slashes and dots and while using pre-A.02.02 software, you cannot enter the same

path format using A.02.02 or later software. You must enter the path using the exact same digits but with

dots instead of slashes as delimiters.

For example, if a path using A.02.01 software was entered as:

# vparmodify -p winona2 -m io:4/0/1/0/0.0.0:BOOT

then vparstatus would show the path as "4.0.1.0.0.0.0". To do the same vparmodify command above but

using A.02.02 or later, the command would be:

# vparmodify -p winona2 -m io:4.0.1.0.0.0.0:BOOT

To change the above path to be the ALTBOOT setting, the command is:

# vparmodify -p winona2 -m io:4.0.1.0.0.0.0:ALTBOOT

Example Using Combo Cards

Beginning with vPars A.02.02, when setting a path, you can either use one or more occurrences of the / and .

in the path so that the resultant path is the correctly padded path (this path is the same as the path shown in

the ioscan output), OR use a correctly padded path directly using only dots (this path is the same as the path

shown in the vparstatus output).

Table 3-1 Hardware Path Format Rules

Path Format Description Example

What the vPars Commands

will do with the Entered Path

one or more occurrences of the / and . 0/1. path will be padded

only occurrences of the / 1/0

1/0/1

path will not be padded

only occurrences of the . 1.0

1.0.