Adaptec 7220ss User Guide
5-6
Configuring the Controller
■
SEP LUNs
—Allow access to SEPs. A SEP LUN may be set to a
value between 0 and 63 or None. None means that the SEP
cannot be accessed via a LUN. For information about changing
the SEP LUN, see
cannot be accessed via a LUN. For information about changing
the SEP LUN, see
.
■
Partition LUNs
—Allow access to partitions on the controller.
Partition LUNs may be set to any numeric value between 0 and
63. For information about changing the partition LUN, see
63. For information about changing the partition LUN, see
Viewing LUN Information
You can view information for each existing LUN.
To view LUN information:
1
From the System Menu, select Utilities Menu and press Enter.
The Utilities menu appears.
2
Select LUN Information and press Enter.
The LUN Information window appears.
3
Press Esc to return to the Utilities menu.
Configuring the SCSI Channels
You can change three channel configuration options for each SCSI
channel:
channel:
■
Bus Speed
—This is the maximum speed the controller will
attempt to negotiate.
– 160 MB/sec—Default setting (DT clocking)
– 80 MB/sec (ST clocking)
– 40 MB/sec (ST clocking)
Note:
If you have disk drives that are not Ultra160 capable
and you experience disk channel problems, you should set
the bus speed to 80 MB/sec. Not all disk drives can handle
the Ultra160 bus speed.
the bus speed to 80 MB/sec. Not all disk drives can handle
the Ultra160 bus speed.