User manual

4.7 SCSI Configuration Setup
An SCSI Interface contains two channels, one is Primary SCSI Interface, and
the other is Secondary SCSI Interface. You can drop the pop-up menu to select
a channel to configure SCSI Interface.
The Set SCSI ID and the Termination must be set to avoid causing a conflict
with the SCSI adapter or other SCSI device daisy chained with the RAID
subsystem. Command Tag Queuing is a function that allows a SCSI device to
queue multiple requests without having to serialize the operations. This frees
the controller to process requests in whatever order is convenient, instead of
blindly processing and acknowledging each disk operation before starting the
next. This allows the RAID subsystem to efficiently handle multithreaded
applications that issue multiple disk commands.
4.7.1 General Setup
Primary SCSI Submenu for configuring primary SCSI settings
Set SCSI ID Select 0 to 14 or multiple (default: 0). ID 7 is reserved for the
SCSI Card.
Terminating Enable the SCSI termination of the RAID subsystem.
Tag queuing Tag queuing allows RAID systems to process multiple requests
from the host without having to serialize the operations thus
improving performance
Speed Ultra 3, Ultra 2, or Fast (default: Ultra 3).
Wide Use to enable the Ultra/Fast Wide SCSI feature. This feature
allows to increasing the I/O speed on host Interface from SCSI
to Wide SCSI.
4.7.2 LUN MAP
Lun mapping is used to setup each Slice to map to a logical Lun Number.
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