Supermicro 8052-6, Руководство пользователя

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Chapter 6: Advanced Chassis Setup
6-9
SCSI Backplane Jumper Settings
The SCSI subsystem is preset to provide dual channel operation. The
easiest way to reconfigure for single channel operation is to simply remove
both JP5 and JP21 from backplane A only (leaving those on backplane B
unchanged) and setting JP24 to different settings on each backplane. See
Figure 6-7 for jumper locations.
!
JP5: SCSI SAF-TE ID jumper. This jumper determines how the
backplane assigns IDs to the drives.
ON: SCSI SAF-TE ID set to 8. OFF: SCSI SAF-TE ID set to 6.
Dual Channel: Set JP5 to the same pins on both backplanes.
Single Channel: Set JP5 differently on both backplanes.
!
JP21: SCSI termination jumper (ON for termination and OFF for non-
termination). SCSI channels must be terminated to operate. The termina-
tion settings must be changed when reconfiguring channels.
Dual Channel: Set JP21 to ON on both back planes to provide the
termination for each channel.
Single channel: Set to OFF (remove the jumper) on backplane A and ON
on backplane B to provide a single termination.
!
JP24: SCSI ID. This jumper determines how indicator IDs are to be
assigned to the drives. This is used for the front control panel to allow you
to identify the current status of each individual drive.
1-2: SCSI ID's set to 0,1,2,3 and 4.
2-3: SCSI ID's set to 9,10,11,12 and 13.
Dual Channel: N/A (settings have no effect)
Single channel: Set JP24 differently on both backplanes.
!
JP9: I2C Link
!
JP15: Delay Start
!
JP6: Manufacturer's setting. You do not need to change this jumper.