AIC7870.ADD

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Product Support
OS/2 1.3
OS/2 2.0
OS/2 2.1 S
OS/2 2.11 SMP S
OS/2 Warp 3 S
OS/2 Warp Connect S
OS/2 Warp 4 S
OS/2 Warp Server for e-Business S

Driver for the Adaptec PCI SCSI host adapters based on AIC-7870 controller.

Supported Devices

  • AHA-2910 PCI-to-Fast SCSI (non-bootable)
  • AHA-2930 PCI-to-Fast SCSI
  • AHA-2940 PCI-to-Fast SCSI
  • AHA-2940W PCI-to-Fast and Wide Single-ended SCSI
  • AHA-2940AU PCI-to-Ultra Single-ended SCSI
  • AHA-2940U PCI-to-Ultra Single-ended SCSI
  • AHA-2940U Dual - DualChannel PCI-to-Ultra Internal Single-ended SCSI with 50-pin external connector
  • AHA-2940UW PCI-to-Ultra Wide Single-ended SCSI
  • AHA-2940UW Dual - DualChannel PCI-to-Ultra Wide Single-ended SCSI with Wide external connector
  • AHA-2944W PCI-to-Fast and Wide Differential SCSI
  • AHA-2944UW PCI-to-Ultra Wide Differential SCSI
  • AHA-3940 MultiChannel PCI-to-Fast SCSI
  • AHA-3940W MultiChannel PCI-to-Fast and Wide SCSI
  • AHA-3940U MultiChannel PCI-to-Ultra SCSI
  • AHA-3940UW MultiChannel PCI-to-Ultra Wide SCSI
  • AHA-3940UWD MultiChannel PCI-to-Ultra Wide SCSI with dual external connectors
  • AHA-3944UWD MultiChannel PCI-to-Ultra Wide Differential SCSI with dual external connectors
  • AHA-3940AU MultiChannel PCI-to-Ultra SCSI
  • AHA-3940AUW MultiChannel PCI-to-Ultra Wide SCSI
  • AHA-3940AUWD MultiChannel PCI-to-Ultra Wide SCSI with dual external connectors
  • AHA-3944AUWD MultiChannel PCI-to-Ultra Wide Differential SCSI with dual external connectors
  • AHA-4944W Quad Channel PCI-to-Fast and Wide Differential SCSI
  • AHA-4944UW Quad Channel PCI-to-Ultra Wide Differential SCSI
  • AIC-7850 Single-chip PCI-to-Fast SCSI
  • AIC-7855 Single-chip PCI-to-Fast SCSI
  • AIC-7856 Single-chip PCI-to-Fast SCSI
  • AIC-7860 Single-chip PCI-to-Ultra SCSI
  • AIC-7870 Single-chip PCI-to-Fast and Wide SCSI
  • AIC-7880 Single-chip PCI-to-Ultra Wide SCSI
  • AIC-7895 Single-chip PCI-to-MultiChannel Ultra Wide SCSI
BASEDEV=AIC7870.ADD <parameters> 

Parameters

Universal
  • /ET - Allow embedded targets. This parameter indicates that the ADD should assume that all targets have more than one logical unit (LUN) defined.
  • /!ET - Do not allow embedded targets (DEFAULT). This parameter indicates that the ADD should assume that all targets have only one logical unit (LUN) defined.
  • /V - Load driver verbosely. This parameter will display the driver name as well as the version number and Adaptec copyright if the driver loads successfully. Information on all targets found in the system will also be displayed.
  • /PCIHW - Enables driver to access PCI configuration hardware registers. This switch is implemented because in some PCI systems, accessing PCI configuration space through PCI BIOS function calls causes problems. This switch is enabled by default. New with Version 3.02
  • /!PCIHW - Disables the PCIHW switch. This parameter will cause the driver to access the PCI configuration space through PCI BIOS function calls. New with version 3.02
General Unit
  • /I - Ignore the specified adapter. This allows another driver to share the adapters that the ADD would normally use.
  • /DM - Enable DASD manager support (DEFAULT). This parameter allows OS2DASD.DMD to control the specified target(s) if they are identified as DASD (hard disk) devices.
  • /!DM - Disable DASD manager support. This parameter prevents OS2DASD.DMD from controlling the specified target(s).
  • /SM - Enable SCSI manager support (DEFAULT). This parameter allows OS2SCSI.DMD to control the specified target(s) if they are identified as NON-DASD SCSI devices. All SCSI hard drives will be controlled by OS2DASD.DMD.
  • /!SM - Disable SCSI manager support. This parameter prevents OS2SCSI.DMD from controlling the specified target(s).
  • /TAG:n -- n=1-16. - Specifies the maximum number of tagged commands for all target devices on the host adapter (1-16). A value of 1 disables tagged queuing. The maximum number allowed is 16. (The default is 8.)
  • /UR - Enables reporting of under runs (DEFAULT).
  • /!UR - Disables reporting of under runs.
TIP
If Warp doesn't recognise the AIC7870 Driver add the parameter /A:n n=Number of Controller and /TAG:n n=number of PCI-Slot to AIC7870.ADD. It seems that the version 2.2 of the Adaptec 2940 driver does not work correctly with RSJ, but version 2.11 works fine.

Version

  • 2.11
  • 2.2
  • 3.02
  • 10.3.1