HP 6G Virtual SAS Manager User Guide

Enabling or disabling multi-initiator mode and port splitting
The advance command controls two advanced parameters:
• Multi-initiator mode—Controls whether multiple initiators (server device bays) can access the
same zone group. When this option is selected, a zone group can be assigned to multiple
BladeSystem server device bays. Multi-initiator mode should be enabled when shared SAS
devices, such as the P2000 G3 MSA and tape devices are connected to the switch. Enabling
more than one initiator (server) to access the same zone group is a key principle of the shared
storage concept.
• Port splitting mode—Controls whether ports on the 6Gb SAS BL Switch can be divided into
sub-ports. When this option is selected, a switch port can be divided into two or four separate
sub-ports. When combined with a special cable, port splitting allows you to connect more
tape devices to the switch.
Syntax <TARGET> advance [multi=<on|off>] [portsplit=on|off]
Parameters Use when shared SAS storage enclosures or tape
autoloader or libraries are connected to the switch. When
multi=on
this option is selected, a zone group can be assigned to
multiple server device bays.
multi=off (Default) Use when zoned SAS storage enclosures only are
connected to the switch. When this option is selected, a
zone group can be assigned to only one server device bay.
portsplit=on If desired, use when tape autoloader or libraries are
connected to the switch. When this option is selected, switch
ports may be divided into sub-ports. When special cables
are used, one physical switch port can connect to as many
as four tape devices. To specify which port to split and how
many sub-ports to create, use the split command. For
more information, see online help.
portsplit=off (Default)
Example 1: This example shows how to enable multi-initiator mode:
=> switch loc=local startupdate
Success
=> switch loc=local advance multi=on
Success
=> switch loc=local saveupdate
Success
Example 2: This example shows how to disable multi-initiator mode:
=> switch loc=local startupdate
Success
=> switch loc=local advance multi=off
Success
=> switch loc=local saveupdate
Success
Enabling or disabling multi-initiator mode and port splitting 63