TECHNICAL INFORMATION DOCUMENT TITLE: ptf197 - Compaq 32-Bit Fast-SCSI-2 HBA DOCUMENT ID: TID300079 DOCUMENT REVISION: B DATE: 25JAN95 ALERT STATUS: Yellow INFORMATION TYPE: Symptom Solution README FOR: PTF197 PRODUCT and VERSION: UnixWare 1.1 ABSTRACT: The ptf197 file contains ptf197 - Compaq 32-Bit Fast-SCSI-2 Host Bus Adapter Driver for UnixWare. The Fast-SCSI-2 is a high performance SCSI device controller for Compaq EISA computers. It uses a dedicated processor custom designed for SCSI I/O, the NCR 53C710. The Compaq Fast-SCSI-2 controller works on Compaq EISA systems. To operate as a boot controller the controller must be configured at interrupt 15. SYMPTOM Need driver for Compaq 32-Bit Fast-SCSI-2 Host Bus Adapter Driver. SOLUTION Apply the ptf197 file. Installation Instructions: DATATYPE: compressedimage 1. Download the ptf197.dd.Z and ptf197.txt files to the /tmp directory on your machine. To create a diskette from an IHV HBA disk image file included in this PTF, become superuser and format a 3.5 inch 1.44MB diskette using: $ su provide root password at Password: prompt place a 3.5 inch high density disk in the floppy drive # format -v /dev/rdsk/f03ht ( f13ht if it's the b: drive ) # uncompress the image using: uncompress ptf197.dd.Z Now dd the image onto the disk using: # dd if=/tmp/ptf197.dd of=/dev/dsk/f03ht bs=1024k note path to dd image may be different use f13ht of it's the b: drive Solution Specifics General Description ------------------- The following Release Notes apply to the Compaq 32-Bit Fast-SCSI-2 Host Bus Adapter Driver. The Fast-SCSI-2 is a high performance SCSI device controller for Compaq EISA computers. It uses a dedicated processor custom designed for SCSI I/O, the NCR 53C710. Hardware Notes and Recommendations: ----------------------------------- The Compaq Fast-SCSI-2 controller works on Compaq EISA systems. To operate as a boot controller the controller must be configured at interrupt 15. If there are multiple Compaq Fast-SCSI-2 controllers at interrupt 15 then the controller in the lowest slot followed by any internal controllers will be found first. It is possible for a secondary controller to operate at interrupts other than 15. Installation Instructions ------------------------- If only one Compaq Fast-SCSI-2 controller is in the system and it is the boot controller then the software will be installed during UnixWare installation. If the one Compaq Fast-SCSI-2 controller is added to the system after UnixWare has been installed then the software may be loaded via Application Setup. The boot controller must be installed at interrupt 15. Installing Multiple Controllers ------------------------------- If there are multiple boards at interrupt 15 then the controllers in the lowest slot number are found first followed by any internal controllers. If there are multiple controllers installed at the same interrupt it will be necessary to edit the System file, /etc/conf/sdevice.d/cpqsc: 1) You must duplicate the configuration line. 2) The unit number, field 3, must be zero for the bootable controller, the first controller listed, -1 for all other controllers. 3) You must set the starting and ending I/O address space for the board. This is stored in fields 7 and 8. This information can be found using the System Configuration Utility. It should be set to N000 and N01f where N is the slot number. Below is an example for boards in slots 8 and 4. cpqsc Y 0 5 4 15 8000 801f 0 0 -1 cpqsc Y -1 5 4 15 4000 401f 0 0 -1 Special Considerations: ---------------------- Some SCSI devices do not handle multiple LUNs correctly. To accommodate these devices there is a special variable in /etc/conf/pack.d/cpqsc/Space.c that can be set. If cpqsc_lun_fix is set to 1 then only LUN 0 will be accessed for all devices connected to any Fast-SCSI-2 controllers. After changing the variable you must run /etc/conf/bin/idbuild.