MPT_SAS(4D) MPT_SAS(4D)


NAME


mpt_sas - SAS-2/3 host bus adapter driver

SYNOPSIS


scsi@unit-address


DESCRIPTION


The mpt_sas host bus adapter driver is a nexus driver that supports
Broadcom (formerly LSI and Avago) SAS chipsets including the
SAS200x/2x08/2x16 and SAS300x/3x08/3x16/3x24 series of chips. These chips
support SAS/SATA interfaces, including tagged and untagged queuing, SATA
3G/SAS 3G/SAS 6G/SAS 12G.

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(7) for a description of the following attributes:


+---------------+-----------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------+
|Architecture | SPARC, x86 |
+---------------+-----------------+

SEE ALSO


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


December 15, 2017 MPT_SAS(4D)