This chapter provides overviews of SAS Domain considerations, SAS device discovery, and SAS boot device configuration.
SAS multipathing is supported with the Solaris 10 Update 5 OS release when using the bundled mpt(7d) driver.
SAS expanders are not supported with the Solaris 10 Update 5 OS release.
LUN masking is not supported with SAS-attached devices in the Solaris 10 Update 5 OS release.
Turn off power management on hosts connected to the SAS Domain in order to prevent unexpected results as one server attempts to power down a device while another attempts to gain access. See pmconfig(1m) and power.conf(4) for details about power management.
Adding and removing SAS devices is performed dynamically when using the mpt(7d) driver. You are no longer required to edit the sd.conf file to enable your system to detect specific targets and LUNs attached with the mpt driver. See mpt(7d) for more information.
You are no longer required to edit the sd.conf file to enable your system to detect specific targets and LUNs attached with the mpt driver.
If you add or remove a device in your SAS domain, messages will be written to the /var/adm/messages file indicating presence or removal. If a device has been added, it is visible to and available by the format(1m) command.
The Solaris Multipathed IO software allows Solaris 10 Update 5 OS hosts to boot from a multipathed SAS device, or from a SATA device connected to a SAS controller. Only the bundled mpt driver is supported for SAS multipathing in the Solaris 10 Update 5 OS release.
Some SAS and SATA devices might not support multipathing but will still function as non-multipathed devices. See http://sunsolve.sun.com for more information.