Installation guide

If problems with user-level programs occur, use the BIOS setup to turn off

write-back CPU caching (or all caching if there is no control over the caching

algorithm).

If the AHA-2940 SCSI adapter does not recognize the Quantum Empire 1080S HP

3323 SE or other SCSI disk drive, reduce the Synchronous Transfer rate on the

Adaptec controller to 8 Mbps.

The AHA-3940 has been certiﬁed by Adaptec to work on speciﬁc systems. Our

testing has shown that the Solaris operating environment works properly in some

of those systems and not in others. If you encounter problems running the Solaris

environment on an Adaptec-approved system with the AHA-3940, contact your

technical support provider.

Conﬁguration Procedure

Conﬁgure each SCSI device to have a unique SCSI ID, and on the adapter’s

Advanced Conﬁguration Options setup menu, set the Plug N Play SCAM Support

option to Disabled.

Using the Adaptec conﬁguration utility:

If there is more than one controller (or an embedded controller), try to use one

IRQ per controller.

Enable bus mastering for the slot(s) with your host bus adapter(s), when the

choice is given.

For older disk drives, tape drives, and most CD-ROM devices, make sure the

maximum SCSI data transfer speed is set to 5.0 Mbps.

Enable support for disks larger than 1 Gbyte if applicable.

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Information Library for Solaris 2.6 (Intel Platform Edition) ♦ August 1997