dlyons@Apple.COM (David Lyons) (05/12/89)
>>Note that anyone using a hard disk and GS/OS should try to locate the >>SCSI driver patchs by Glen Bredon. I dont have them, but they are for >>folks using an Apple SCSI controller at least - I dont know about CMS >>controllers, etc. > >| Presumably, these patches are for more efficient SCSI drive access - right? > >| Does anybody know where these patches are available? >| And as long as we're at it, does Glen Bredon have an ArpaNet address? As far as I know, Glen Bredon does not have an ArpaNet/InterNet/BITNET/ whatever net address, but he's available on CompuServe, GEnie, AppleLink-- Personal Edition, by U.S. Mail, and (if you have a pressing problem) by phone. I believe his phone number is in his ProSel documentation. I can't really endorse his patch, but as far as I know it isn't causing problems for people. The patch is for SCSI.DRIVER on System Disk 4.0. This driver is used only with the Apple SCSI card, so if you're using a 3rd-party interface card you have no use for the patch (you probably don't even have the SCSI.DRIVER file on your boot disk). Note that the SCSI drivers were rewritten for System Disk 5.0 anyway--the 4.0 driver was just an "interim" driver to use while the real one was being written. The 5.0 drivers are faster & don't have the bug that Glen's patch seems to have fixed. As I understand it, the bug was that a block write through the 4.0 SCSI.DRIVER changed 2 bytes in the memory buffer from which the block was written. This doesn't cause a problem with most programs, but BEACH.COMBER was still using the data in memory after writing it to disk (not BEACH.COMBER's fault, although it could have been modified to work around the SCSI.DRIVER problem). --Dave Lyons, Apple Computer, Inc. | DAL Systems AppleLink--Apple Edition: DAVE.LYONS | P.O. Box 875 AppleLink--Personal Edition: Dave Lyons | Cupertino, CA 95015-0875 GEnie: D.LYONS2 or DAVE.LYONS CompuServe: 72177,3233 Internet/BITNET: dlyons@apple.com UUCP: ...!ames!apple!dlyons My opinions are my own, not Apple's.