Connecting Internal Scsi Devices - HP D7171A - NetServer - LPr Installation Manual

channels are 160 MBytes/sec. Connecting a non-Ultra 3 peripheral
to an Ultra 3 SCSI channel may limit the entire channel to lower
performance levels. If you are installing your SCSI devices inside an
array enclosure, see Connecting SCSI Array Enclosures (Storage
Subsystems) on page 2-11.

Connecting Internal SCSI Devices

To connect internal SCSI devices to each SCSI channel, you must use an
internal 68-pin SCSI cable that has enough connectors to accommodate
all your devices. (See Installation Hints for Connecting SCSI Devices on
page 2-13 for additional information on cabling SCSI devices.)
Follow these steps to connect internal SCSI devices:
1
Prepare each SCSI device for installation:
– Make sure each device is assigned a unique SCSI ID number
from 0 to 6, or 8 to 15 (the HP NetRAID-4M controller is set
to ID 7 by default; we recommend leaving this setting at 7).
You can use SCSISelect in the HP NetRAID-4M BIOS to
change the IDs. In general avoid using IDs 6 or 15. No
duplicate IDs are permitted on a channel. (See SCSI ID
Numbers on page 2-14 for additional information.)
– If you are using a cable that has a built-in terminator,
remove (or disable) the terminators on each internal device.
If your cable does not have a built-in terminator, you must
install (or enable) the terminators on only the internal
device you are attaching to the end of the cable. (See SCSI
Termination on page 2-14 for additional information.)
– HP internal/external disk enclosures are self terminating.
2
Install and mount each internal SCSI device in an available
drive bay inside your computer. (Refer to your computer and
device documentation for instructions.)
Installing the Hardware
2-7