For more information on installing the HSG80 in an arbitrated loop topology,
see the HSG80 Array Controller ACS Version 8.5 Configuration Guide.
To set up an HSG80 for TruCluster arbitrated loop operation, use the
maintenance terminal to set the controller values as follows:
1.
Set the
PORT_
x
_TOPOLOGY
value to
LOOP_HARD
. For example:
set this port_1_topology = LOOP_HARD
set this port_2_topology = LOOP_HARD
set other port_1_topology = LOOP_HARD
set other port_2_topology = LOOP_HARD
The
PORT_
x
_TOPOLOGY
value of
LOOP_HARD
enables arbitrated loop
operation. Although the HSG80 controller also permits a topology
setting of
LOOP_SOFT
, this is not supported in Tru64 UNIX.
2.
Set
PORT_
x
_AL_PA
to unique values.
PORT_
x
_AL_PA
specifies the
hexadecimal arbitrated loop physical address (AL_PA) for the HSG80
host ports.
This is the preferred address, but the HSG80 controller can use
whatever AL_PA it obtains during loop initialization. However, the
address that you specify must be valid and must not be used by another
port. If the controller is unable to obtain the address that you specify
(for example, because two ports are configured for the same address),
the controller cannot come up on the loop.
In particular, if you do not set
PORT_
x
_AL_PA
, multiple ports might
attempt to use the default address, thus causing a conflict.
The valid AL_PA addresses are within the range of 0-EF (hexadecimal),
but not all addresses within this range are valid; the default value is 69
(hexadecimal).
The list of valid AL_PA addresses is as follows:
0x01, 0x02, 0x04, 0x08, 0x0F, 0x10, 0x17, 0x18, 0x1B, 0x1D,
0x1E, 0x1F, 0x23, 0x25, 0x26, 0x27, 0x29, 0x2A, 0x2B, 0x2C,
0x2D, 0x2E, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x39, 0x3A,
0x3C, 0x43, 0x45, 0x46, 0x47, 0x49, 0x4A, 0x4B, 0x4C, 0x4D,
0x4E, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x59, 0x5A, 0x5C,
0x63, 0x65, 0x66, 0x67, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E,
0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x79, 0x7A, 0x7C, 0x80,
0x81, 0x82, 0x84, 0x88, 0x8F, 0x90, 0x97, 0x98, 0x9B, 0x9D,
0x9E, 0x9F, 0xA3, 0xA5, 0xA6, 0xA7, 0xA9, 0xAA, 0xAB, 0xAC,
0xAD, 0xAE, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB9, 0xBA,
0xBC, 0xC3, 0xC5, 0xC6, 0xC7, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD,
0xCE, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD9, 0xDA, 0xDC,
0xE0, 0xE1, 0xE2, 0xE4, 0xE8, 0xEF
The convention in transparent failover mode is to use the same AL_PA
address for Port 1 on both controllers and the same AL_PA address for
Port 2 on both controllers. This convention allows the standby port on
the alternate controller to have the same AL_PA address in the event
4–14 Installing Fibre Channel Hardware and Configuring the emx Driver
