scsi cable that came with the drive. the unit also came with it's own terminator which is also plugged into the
packet loader. The packet-loader is the only device connected to the scsi card externaly.
Inside, the scsi card has both a scsi-1 and scsi-2 connector. The scsi-1 connector has a single device
connected (the CD-Rom). The scsi-2 connector has the rest of the devices connected on a single cable
(3 hard drives, 1 VXA-1 Exabyte tape drive). It is a fairly long cable, with about 8 inches of cable separating each
device. The last device on the cable is the VXA-1 tape drive followed by a termination on the cable itself.
I guess I could go back and try the sym53c8xx-2 driver with more conservative settings on the options and
test again.
On Fri, 2005-02-04 at 15:54 +0100, Geert Uytterhoeven wrote:
On Fri, 4 Feb 2005, James D. Freels wrote:
> When you say "cabling" issues, does this include a separate scsi card
> specific for the
> tape drive ? I think my cable connections are good.
The cable may be too long, or not properly terminated.
> The scsi card I have is a "LSI Logic / Symbios Logic (formerly NCR)
> 53c875 (rev 04)"
> All devices are indicating on boot up (dmesg) at 40 MB/s except the
> CD-Rom which
> is indicating 10 MB/s. I have 3 hard drives, 2 tape drives (including
> the new one
> having trouble), and 1 CD-Rom in this scsi chain. I have tried all
> three scsi drivers
> available for this card in the linux kernel 1) ncr53c8xx, 2) sym53c8xx,
> and 3) sym53c8xx-2.
> The ncr53c8xx driver seems to give the least problems, so I have
> concentrated on
> this one. As I said, the "library" (autoloader) seems to work
The ncr53c8xx driver is the very old one, sym53c8xx-2 is the new one. Actually
I've used all 3 of them with a 53c875 on a Linux/PPC box. sym53c8xx-2 (the
preferred one) should work fine.
> correctly, but it
> is just the tape writing that is giving me problems at present. It is
> able to label the tapes,
> but not write a larger data set to the tape.
Is the tape drive the last device on the cable?
You already have 6 devices (7 incl. the SCSI adapter), so the cable cannot be
that long. How long is it?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [EMAIL PROTECTED]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
