Preconfiguration Information

• If your BT-946C PCI card is labeled Rev. A or B, it needs to be supported in ISA emulation mode; use I/O address 0x334.

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  Note -

  Look at the card itself to find the revision level. The revision of the card is not provided in the manufacturer's documentation.

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• If your BT-946C is labeled Rev. C, it can be supported in native PCI mode. To do this, select "Advanced option," and choose "NO" for the "Host Adapter I/O Port Address as default" option.

• If your PCI card is model BT-956C or model BT-946C Rev. E, it can also be supported in native PCI mode. To do this, disable the "Set ISA Compatible I/O Port (PCI Only)" option.

• If your board model ends in "C", you must enter the AutoSCSI configuration utility and check the termination.

Supported Settings

I/O addresses are dynamically configured for BT-946C Rev. C PCI adapters.

Known Problems and Limitations

• Do not run the drvconfig utility during heavy I/O involving disks and tapes because doing so can cause data overrun errors.

• Data overrun errors may occur under high stress when your system is configured with multiple disks.

• If problems occur during Solaris installation, set the Interrupt Pin number of the "Configure Adapter" option in the manufacturer's AutoSCSI utility as follows:

  Slot	Interrupt Pin
  0	A
  1	B
  2	C

  For more information, see the sections "Configuration for Non-Conforming PCI Motherboards" and "Handling Motherboard Variations" in the documentation that comes with your board.

• Early versions of Rev. A, B, and C of the BT-946C may not work with the Solaris operating environment.

  Upgrade to at least Firmware 4.25J, BIOS 4.92E, and AutoSCSI 1.06E, if you have BT946C Rev. B. Upgrade the controller to at least BT946C Rev. E.