This example shows two adapters with one sharing the internal devices of the other,
with simplified cabling.
The following shows a simplified cabling method for the previous example. This
technique has a limitation that, if any external cable is removed, then adapter A is
not properly terminated and does not function properly. If the external cable is
removed, then adapter A must have jumpers reconfigured to the factory default prior
to use, or an external terminator must be placed on the external adapter A's external
connector. Failure to do so may make the adapter fail intermittently and may cause
adapter diagnostics to fail.
If the external cable is removed from adapter A and left attached to adapter B,
adapter B may fail to function since the non-terminated cable distorts the electrical
signals on the SCSI bus.
When troubleshooting or diagnosing problems with this configuration, keep in mind
that when removing external cables you must first take action to properly
re-terminate or move jumpers before running diagnostics.
Figure
C-4. Adapters Sharing Internal Devices with Simplified Cabling
Appendix C. Jumper Settings and Multi-Adapter Configurations
C-7
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