CompuServe Thread

#Share SCSI on IBM/AMIGA

8 messages in this thread
#36346From: Tony PitmanAug 11, 1993 6:12 PM
I am sharing a 40mb hard drive with an Amiga 3000 and and IBM 486 on a SCSI bus AT THE SAME TIME. Read the file SCSIAIBM.TXT to learn how.
#36382From: Yasushi MisawaAug 14, 1993 7:39 AM
Where can I found that doccument. I hope I can share HD with Amiga & Mac. Mac has utiliies for mounting IBM HD. So, SCSI-A-MAC is OK, I hope so…
#36396From: Mike SchillerAug 15, 1993 7:50 AM
Please remember that actually sharing a Harddrive is DANGEROUS to your data on that drive! I too have 2 machines hooked together via SCSI, my Amiga, and a 486 running NEXTSTEP 3.1, and I don't actually share any harddrives, but rather I share my CDROM, Tape, and SyQuest drives. By share, I never access either the tape or syquest drives from more than one machine at a time, as that could end up screwing up data. The CDROM is a different story, as it's a read only device, there's no chance of messing up data, and I've had the drive mounted on both machines at the same time, had shells open on both machines in the same directory on the CDROM, and did a directory of the drive at the same time from both machines (I use the ls command on both the Amiga & NEXTSTEP machines). I did it mostly to see if it could be done, and it can, both machines get their directories up in about the same amount of time. I'm assuming that the drive actually does 2 read operations to the CDROM, but it might be possible that it's only reading the data once, and sending the data over the SCSI bus, and both machines are reading the same data, but I'm not sure if this is what's happening or not. // -Mike Schiller \X/ AMIGA! On AutoPilot in sunny Fort Lauderdale
#36403From: Yasushi MisawaAug 15, 1993 10:22 AM
I see that it is just a adventure. Are you using CrossDos for Amiga->PC-HD?
#36407From: Mike SchillerAug 15, 1993 1:46 PM
No. I don't try and access any hard drives for 'sharing' the only device I use with both that's anything like a hard drive is my SyQuest drive, and I simply have Amiga cartridges, and PC ones. I've tried mounting the PC cartridges under CrossDOS, but have never been able to get it flying right. // -Mike Schiller \X/ AMIGA! On AutoPilot in sunny Fort Lauderdale
#36436From: Suresh KavanAug 18, 1993 12:48 AM
Cross-Dos should be able to happily mount a PC formatted Syquest..it works great with my bernouilli at any rate….this way I can render 90 Mb of animation files (.TGA) from 3D Studio to the Bernouilli, convert them on the Amiga side using Adpro into a DCTV anim…and rock and roll!!
#36451From: Chester ChenAug 18, 1993 9:28 PM
Suresh, Can you give more details on how you got this to work. I've don't have Cross Dos, but have the AmigaDos 2.1 which has the IBM read/write support for disks. I've not yet been able to set up a MountList (this appears to be what's required) I guess with the right parameters. Seems to me that my MessyDos SCSI Controller card uses some kind of Head translation scheme which I cannot figure out. I've got an Adaptec 1542C with a Syquest 5110C (this is the one that reads/writes 44's or 88's). This approach to use the same formatted cartridge is a more suitable alternative for me that trying to 'pseudo' network/share the scsi device.
#36411From: Tony PitmanAug 15, 1993 7:57 PM
I forget where I put the doc in this forum, but in the AmigaVendor forum I know that it is under the impulse library. I use CrossDOS on my set-up. You are right that it is an adventure, but if you follow some simple rules (out-lined in my text file.) you should be ok, though I still do not feel safe enough about it to put 'perminant' files on the shared drive. (I have had to reformat it twice in two days) I just use it as a quick way to transfer files right now. Tony