[Coco] BUG with rbsuper and tc3 drivers

Tim Fadden t.fadden at cox.net
Mon Feb 6 18:25:01 EST 2017


On 2/6/2017 3:27 PM, Bill Pierce via Coco wrote:
> Tim, you can use up to 4 gig partitions, but only 2 I think. Might be one. You have to use a cluster size of 32 to to do this.
> Here's the size lowdown:
>
> 128 meg (and smaller) Cluster size of 1
> 256 meg Cluster size of 2
> 512 meg Cluster size of 4
> 1 gig Cluster size of 8
> 2 gig Cluster size of 16
> 4 gig Cluster size of 32
>
> Anything over 128 meg MUST use the above sizes as RBSuper will only handle the sizes to the power of 2.
>
> Wish I could help you with the SCSI drives, but I've only setup IDE drives.
>
Ya, I understood the clustering part.  Direct quote from the manual is:

24-bit sector addressing supports up to 4GB

The way I understood it that for partitioning the drivers just add the 
offset to  zero when accessing the sector, so if your first partition is 
4 gig.  then the second one's offset used up the 24 bits of the 
addressing?   Not that I will ever use up that much space anyway the 
only reason for using the larger drives is because I have boat load of 
18 gig drives!

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> Bill Pierce
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> -----Original Message-----
> From: Tim Fadden <t.fadden at cox.net>
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Sent: Mon, Feb 6, 2017 5:15 pm
> Subject: [Coco] BUG with rbsuper and tc3 drivers
>
> I have been having problems getting scsi disks working with the latest nitros9 I downloaded from the nightlies Feb 2nd.I have two disks attached one set to ID 0, and one set to ID 4OK so I made a boot floppy with sdc drivers, sdsuper/tc3 drivers, and floppy controller drivers with floppy as /dd.It all boots up fine.Now when doing a dir listing on /sd0 through /sd6 the system comes back with the listing of target 0!all the descriptors show their respective target  ie drv=0, drv=1, etc.so either tc3 driver, or sbdriver is not handling the scsi ID at all.I have multiple partitions on the drive , so next i did a dmode on it to change the offset, IEdmode /so wpc=0F ofs=D302low and behold, there is the dir from my second partition.so this leads me to believe that the offset is being passed correctly.I have not tried to write to them!  ha ha.   So for anyone that has just one drive attached all would seem to be working perfectly, but with multiple drives it is a no-go.Is any one savvy enough to figure out where the scsi ID is being egnored?  I would certainly appreciate it.Thanks!P.S. on a side not I was reading the superdriver docs, saying it can handle up to 4 gig, is this drive size, or partition size? I am guessing drive.  although I have an 18 gig attached with 4 partitions that seem to be working correctly. Might just be because I never put enough data on them to wack out the next partition.-- Tim Fadden"Hey Schmidt, don't forget about the six P's.Proper Preparation Prevents Piss-Poor Performance!"-- Coco mailing listCoco at maltedmedia.comhttps://pairlist5.pair.net/mailman/listinfo/coco
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-- 
Tim Fadden
"Hey Schmidt, don't forget about the six P's.
Proper Preparation Prevents Piss-Poor Performance!"



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