User's Guide SBus Adapter SunSwiftTM

Preparing for Installation 1-3
1
SCSI Cabling
You can daisy chain up to 15 devices on the SunSwift SBus Adapter as follows:
• Single byte data transfers from an odd memory address to a SCSI device are
not supported by the SunSwift SBus Adapter SCSI-2 (fas) device. Refer to
SMCC Open Issues Supplement Solaris 2.5 Hardware: 1/96 for more detailed
information.
• If you use the SunSwift SBus Adapter for SCSI purposes only, you must
change the device name from SUNW,hme to SUNW,hme_idle to avoid a
“Link Down — cable problem?” message. Refer to SMCC Open Issues
Supplement Solaris 2.5 for more detailed information.
Ethernet Cabling
An additional Ethernet cable is required if you want to use your system’s
existing Ethernet interface and the SunSwift SBus Adapter Ethernet interface.
Disabling Your Current Ethernet Device
If you remove your system’s existing Ethernet cable (either from its on-board
Ethernet device or from an existing Ethernet card) and insert it into the
SunSwift SBus Adapter Ethernet connection, you must disable your current
card’s Ethernet device. For example, if your current Ethernet device is called
le0, you would remove its IP address and hostname from the /etc/hosts
file and remove the /etc/hostname.le0 file itself.
Wide-to-wide devices Use a 68-pin to 68-pin cable.
Always put wide SCSI devices closest to the host system.
Wide-to-narrow devices Use a 68-pin to 50-pin cable.
You can include only one wide-to-narrow cable along a
chain of peripherals.
Always put the narrow SCSI devices at the end of the
chain.
The SCSI bus must be terminated at the end of the chain.