User`s guide

Conguring SAS Domains

This chapter provides overviews of SAS Domain considerations, SAS device discovery, and SAS

boot device conguration.

SAS Multipathing Considerations

■

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 o 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.

Dynamic Discovery of SAS Devices

Adding and removing SAS devices is performed dynamically when using the mpt(7d) driver.

You are no longer required to edit the sd.conf le to enable your system to detect specic

targets and LUNs attached with the mpt driver. See mpt(7d) for more information.

You are no longer required to edit the sd.conf le to enable your system to detect specic

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 le indicating presence or removal. If a device has been added, it is visible

to and available by the format(1m) command.

CHAPTER 6