dave@dms3b1.uucp (Dave Hanna) (05/03/91)
I am working on a proposal that, for both redundancy and performance reasons, we will be implementing with a dual processor platform. Each processor will be a complete, independent PC, with its own passive backplane, processor card, memory etc. I intend each processor to have a high-performance SCSI controller, and to connect them together across a common SCSI bus. Both processors need both read and write access to the disks on the SCSI bus. The problem I'm mulling over is how to keep accesses in sync. Does anyone know if any similar systems exist commercially (either hardware or software), or if there have been any articles describing approaches to this problem? One thing that seems obvious is that you have to inhibit cacheing of the File Access Table (FAT). Does it require source code from MicroSoft in order to be able to do that? I'm posting this to both groups because I have a feeling it will be a mixed hardware/software solution. Any help would be greatly appreciated. -- Dave Hanna, Infotouch Systems, Inc. | "Do or do not -- There is no try" P.O. Box 584, Bedford, TX 76095 | - Yoda (214) 358-4534 (817) 540-1524 | UUCP: ...!letni!dms3b1!dave |