Chapter 7 - SCSISelect Configuration Utility 7-13
In most cases, you can use the maximum value of 20.0. If the SCSI controller is set
not to negotiate for synchronous data transfer (i.e., Initiate Sync Negotiation is set
to no), then the value selected here is the maximum rate that the SCSI controller
accepts from the device during negotiation. (This is standard SCSI protocol.)
Some older SCSI-1 devices do not support
Fast SCSI data transfer rates. This may
cause your computer to operate erratically or
hang if the transfer rate is set too high. Set
Initiate Sync Negotiation to no for these
devices.
Enable Disconnection
This option determines whether the SCSI controller allows a SCSI device to
disconnect from the SCSI bus (sometimes called Disconnect/Reconnect).
Disconnect/Reconnect allows the SCSI controller to perform other operations on
the SCSI bus while the SCSI device is temporarily disconnected.
When set to yes, the SCSI device may disconnect from the SCSI bus. The SCSI
device, however, may choose not to disconnect, even if permitted by the SCSI
controller (this can usually be configured on the SCSI device). When set to no, the
SCSI device is not allowed to disconnect from the SCSI bus. The default setting is
yes.
You should leave Enable Disconnection set to yes if two or more SCSI devices are
connected to the SCSI controller. This optimizes SCSI bus performance. If only
one SCSI device is connected to the SCSI controller, set Enable Disconnection to
no to achieve slightly better performance.