1mpt_sas(7D)                         Devices                        mpt_sas(7D)
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NAME

6       mpt_sas - SAS-2 host bus adapter driver
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SYNOPSIS

9         scsi@unit-address
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DESCRIPTION

13       The mpt_sas host bus adapter driver is a nexus driver that supports the
14       LSI SAS200x/2108 series of chips. These chips support  SAS/SATA  inter‐
15       faces, including tagged and untagged queuing, SATA 3G/SAS 3G/SAS 6G.
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17   Configuration
18       The   mpt_sas   driver   is   configured   by  defining  properties  in
19       mpt_sas.conf. These properties override the global SCSI  settings.  The
20       mpt_sas driver supports one modifiable property:
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22       mpxio-disable
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24           Solaris I/O multipathing is enabled or disabled on SAS devices with
25           the mpxio-disable property. Specifying mpxio-disable="no" activates
26           I/O  multipathing,  while  mpxio-disable="yes"  disables I/O multi‐
27           pathing.
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29           Solaris I/O multipathing can be enabled or disabled on a  per  port
30           basis. Per port settings override the global setting for the speci‐
31           fied ports.
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33           The following example shows how to disable multipathing on  port  0
34           whose parent is /pci@0,0/pci8086,2940@1c/pci1000,72@0:
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36             name="mpt_sas"    parent="/pci@0,0/pci8086,2940@1c/pci1000,72@0"
37             mpxio-disable="yes";
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EXAMPLES

42       Example 1 Using the mpt_sas Configuration File to Disable MPXIO
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45       Create  a  file  called  /kernel/drv/mpt_sas.conf and add the following
46       line:
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49         name="mpt_sas"    parent="/pci@0,0/pci8086,2940@1c/pci1000,72@0"
50         mpxio-disable="yes";
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FILES

54       /kernel/drv/mpt_sas
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56           32-bit ELF kernel module
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59       /kernel/drv/sparcv9/mpt_sas
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61           64-bit SPARC ELF kernel module
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64       /kernel/drv/amd64/mpt_sas
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66           64-bit x86 ELF kernel module
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69       /kernel/drv/mpt_sas.conf
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71           Optional configuration file
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ATTRIBUTES

75       See attributes(5) for a description of the following attributes:
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80       ┌─────────────────────────────┬─────────────────────────────┐
81       │ATTRIBUTE TYPE               │ATTRIBUTE VALUE              │
82       ├─────────────────────────────┼─────────────────────────────┤
83       │Architecture                 │SPARC, x86                   │
84       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

87       prtconf(1M),  driver.conf(4),  pci(4),  attributes(5),  scsi_abort(9F),
88       scsi_device(9S),       scsi_extended_sense(9S),       scsi_inquiry(9S),
89       scsi_hba_attach_setup(9F),    scsi_ifgetcap(9F),     scsi_ifsetcap(9F),
90       scsi_pkt(9S), scsi_reset(9F), scsi_sync_pkt(9F), scsi_transport(9F),
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94SunOS 5.11                        16 Jul 2009                      mpt_sas(7D)
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