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man pages section 4: Device and Network Interfaces

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Updated: Thursday, June 13, 2019
 
 

mpt_sas(4D)

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/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(7) for a description of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Architecture
SPARC, x86

See Also

driver.conf(5), pci(5), attributes(7), prtconf(8), scsi_abort(9F), scsi_hba_attach_setup(9F), scsi_ifgetcap(9F), scsi_ifsetcap(9F), scsi_reset(9F), scsi_sync_pkt(9F), scsi_transport(9F), scsi_device(9S), scsi_extended_sense(9S), scsi_inquiry(9S), scsi_pkt(9S),