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Installing the A5150A Adapter
SCSI Bus Termination
Chapter 2 33
The HBA is not able to distinguish inline-terminated cables from regular
SCSI cables. If an inline-terminated cable is connected to an HBA that
has auto termination enabled, termination will be provided by both the
cable and the HBA. This would result in improper (double) termination
of the SCSI bus. To prevent this, disable auto termination any time
inline-terminated cables are connected to the HBA.
Scenario Seven
V-Class systems use cables with inline termination. So, the jumpers of
any HBAs installed in a V-Class system are set to disable auto
termination when they are shipped from Hewlett-Packard.
Scenario Eight
High Availability configurations use inline-terminated cables exclusively,
so you must disable auto termination on any HBAs used in an HA
environment.
How to Turn Off Auto Termination
You control the auto termination feature through commands at the BCH
prompt. See the steps below.
NOTE The following steps and examples are specific to N-Class systems.
Menus, commands, and responses will be slightly different on other
systems.
To change the auto termination state of an A5150A HBA, follow these
steps: