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- From: brians@eecs.cs.pdx.edu (Brian Smith)
- Newsgroups: comp.unix.bsd
- Subject: Re: SCSI tape drive not accessible
- Message-ID: <5939@pdxgate.UUCP>
- Date: 28 Jul 92 14:48:13 GMT
- References: <TMH.92Jul23041936@keks.first.gmd.de> <1992Jul23.080507.29145@news.uni-stuttgart.de>
- Sender: news@pdxgate.UUCP
- Distribution: comp
- Organization: Portland State University, Portland, OR
- Lines: 32
-
- In article <1992Jul23.080507.29145@news.uni-stuttgart.de> zrgl0376@helpdesk.rus.uni-stuttgart.de (Cowboy aka Bjoern Lemke) writes:
- >In article <TMH.92Jul23041936@keks.first.gmd.de> tmh@keks.first.gmd.de (Thomas Hoberg) writes:
- >>I managed to get the "Tiny BSD" floppy accross the modem and got
- >>386BSD installed on my system (486/33, 16MB, ET4000/8514, AHA1542, 1GB
- >>Wren VII + 88MB Syquest SCSI drives, Tandberg TDC3800 QIC 525 SCSI
- >>Streamer). The SCSI disks are at targets 0+1, the tape drive is at
- >>target 4. On boot up, only the first disk is recognized. Trying to
- >
- >I run into a similar problem. I used a Fujitsu 2624 Harddisk with the same
- >Streamer (Tandberg). Setting the tape drive to target 4, resulted in
- >nonrecognizing the streamer. (My harddisk is set to target 0). But after
- >setting the tape device to target 1, the scsi controller got it and
- >i was able to read and write from the device (/dev/ras1a) including some
- >scsi error messages (sense 0 0 0 0 .. and so on). I am not a scsi guru
- >and I don't know if this method is proper, but for the moment it works.
-
- This is in the faq recently posted. Apparently, the scsi driver in
- 386BSD only probes targets until it finds an empty spot. So, if you had
- target 0, target 1 and target 4, then the driver would find target 0, then
- target 1, then look for target 2 (finding it empty/non-responsive), and
- conclude that no more devices were on the scsi bus. The workaround is to
- make your scsi devices all contiguous and starting at 0.
-
- Brian
-
-
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