Adaptec 2200S - SCSI RAID Controller Guia de Instalação descarregar pdf (Página 24)

2-5

Installing The Controller

SCSI Termination

Proper termination of channels used with SCSI devices is critical in

having the system work properly. The basics of termination are:

■ Use SCSI cables certified for Ultra320 operation to allow the

system to work at full speed.

Note:

The cable that came with your Adaptec SCSI

RAID 2120S/2200S controller has a built-in multimode

terminator on one end. This is meant to be located at the

opposite end of the cable from the attachment to the

controller. None of the devices attached to this cable

should be terminated. Like this cable, SCSI cables meant

for Ultra320 have multimode termination.

■ Enable termination on the physical end of a SCSI cable opposite

its connection to the controller (see the note above and the

following figure). If the controller is at one end of the SCSI

cable, leave the controller’s termination set to On for that

channel. Turn the controller’s termination setting Off only if

both internal and external cables and terminators are attached

to that channel. Any cables attached to a channel that doesn’t

have any devices or terminators attached should be

disconnected from the controller prior to starting the system.

■ If you are using multiple SCSI channels on a single controller, as

is possible on the Adaptec SCSI RAID 2200S, terminate each

channel separately.

SCSI termination for Adaptec SCSI RAID controllers is configured

through ARC. The controller has two possible termination settings:

Setting Function

Auto (Default) Used for most cabling conditions.

Disabled Disables controller termination unconditionally.

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 66 67

Sem comentários

Adaptec 2200S - SCSI RAID Controller Guia de Instalação Página 24