mpt_sas(7D) (man pages section 7: Device and Network Interfaces)

man pages section 7: Device and Network Interfaces

mpt_sas(7D)

Name

mpt_sas– SAS-2 host bus adapter driver

Synopsis

scsi@unit-address

Description

The mpt_sas host bus adapter driver is a nexus driver that supports the LSI SAS200x/2108 series of chips. These chips support SAS/SATA interfaces, including tagged and untagged queuing, SATA 3G/SAS 3G/SAS 6G. The mpt_sas driver supports the following Dell cards: PERC H200 Integrated, PERC H200 Adapter, PERC H200 Modular, and 6Gbps SAS HBA.

Configuration

The mpt_sas driver is configured by defining properties in mpt_sas.conf. These properties override the global SCSI settings. The mpt_sas driver supports one modifiable property:

mpxio-disable

Solaris I/O multipathing is enabled or disabled on SAS devices with the mpxio-disable property. Specifying mpxio-disable="no" activates I/O multipathing, while mpxio-disable="yes" disables I/O multipathing.

Solaris I/O multipathing can be enabled or disabled on a per port basis. Per port settings override the global setting for the specified ports.

The following example shows how to disable multipathing on port 0 whose parent is /pci@0,0/pci8086,2940@1c/pci1000,72@0:

name="mpt_sas"    parent="/pci@0,0/pci8086,2940@1c/pci1000,72@0" 
mpxio-disable="yes";

Examples

Example 1 Using the `mpt_sas` Configuration File to Disable MPXIO

Create a file called /kernel/drv/mpt_sas.conf and add the following line:

name="mpt_sas"    parent="/pci@0,0/pci8086,2940@1c/pci1000,72@0"
mpxio-disable="yes";

Files

/kernel/drv/mpt_sas: 32-bit ELF kernel module
/kernel/drv/sparcv9/mpt_sas: 64-bit SPARC ELF kernel module
/kernel/drv/amd64/mpt_sas: 64-bit x86 ELF kernel module
/kernel/drv/mpt_sas.conf: Optional configuration file

Attributes

See attributes(5) for a description of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Architecture	SPARC, x86