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NAS System
62 User Manual
6.2.2 Channel Manager
The Channel Manager can be used to configure the SCSI Host Channels A and B options
to the preferred settings. Select “Channel Manager” function in System menu.
For each Host Channel, the SCSI ID, Wide, Speed Setting, Current Speed, and Tag
Queue can be set.
Option Description
SCSI ID
Select 0 to 15 or Multiple ID. The RAID subsystem is like a
large SCSI device. A SCSI ID should be assigned and
selected from the list of SCSI IDs. If Multiple ID is selected,
you can map ID to a host channel.
Wide
If enabled for a wide bus, the throughput is double transfer
rate, because each transfer is of 16 bits or two bytes. For
example, if Wide option is enabled, the Speed Setting can
have maximum transfer speed of 320MB/sec.
Speed Setting
Select the preferred Speed setting. The options are 80
MB/sec, 160 MB/sec, and 320 MB/sec for Wide mode. 40
MB/sec is available when Wide is disabled.
Current Speed This shows the current speed for the host channel.
Tag Queue
When this option is enabled, it enhances the overall system
performance under multi-tasking operating systems by
reordering tasks or requests in the command queue of the
RAID system. This function should normally remain enabled.