> Anyone know if a Sun Ultra 5/10/etc. running Solaris can use an Adaptec
PCI
> SCSI card (spec. AHA-2940 series)?

Hello Tim,

no, recent versions of Solaris SPARC don't not support these cards. There
have been special versions that contained OpenFirmware.

These modells have an -OF appended to their modell name.

AHA-2940UW-OF, AHA-3940UW-OF single-ended SCSI
AHA-2944UW-OF, AHA-3944UW-OF differential SCSI (=HVD)

Support for these cards was dropped (by Adaptec, Sun never supplied drivers
for these cards) after Solaris 2.6 SPARC.

Michael