man/man4d/mpt_sas.4d

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 MPT_SAS 4D "Dec 15, 2017"
 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),