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Chapter 3 Setting Up MPxIO

3.3 Solaris 8 OS

3.3

Solaris 8 OS

3.3.1

Disabling MPxIO on Some Paths

When multipathing is not required for some devices, the procedure that follows should be used to

add the physical paths of these devices to the "/kernel/drv/fp.conf" file, in order to disable use of

the multipath function for these devices.

This is not necessary when multipathing is to be set up for all devices recognized by the OS, in

which case proceed to

Procedure

P3AM-2722-04ENZ0

ETERNUS Disk storage systems Server Connection Guide for Oracle Solaris

"3.3.2 Checking the Storage System Status" (page

If this setting is omitted, multipathing is set up for all LUNs recognized by

the OS.

MPxIO must be disabled for the paths of connected devices that MPxIO

does not support (such as a tape device).

Use the "cat" command (etc.) to check the "/etc/path_to_inst" file and identify the

physical pathname of the device for which multipathing is not required.

In this example, the physical path is "/pci@8,600000/SUNW,qlc@2"

# cat /etc/path_to_inst

"/pci@8,600000/SUNW,qlc@2" 0 "qlc"

"/pci@8,600000/SUNW,qlc@2/fp@0,0" 5 "fp"

"/pci@8,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e0113ce2e1,0" 5 "ssd"

Physical path

Add the following line to the "/kernel/drv/fp.conf" file using the "vi" command.

name="fp" parent="Physical path" port=0 mpxio-disable="yes";

Example:

name="fp" parent="/pci@8,600000/SUNW,qlc@2" port=0 mpxio-disable="yes";

17).

End of procedure