On Mon, Feb 28, 2000 at 09:41:44AM -0700, Eric Lee Green wrote:
> fred smith wrote:
A followup:
1) I borrowed another external SCSI tape drom the office and the scsi controller
does see it. So the problem is not the cable.
so:
2) I removed the drive from the external housing and plugged it directly
into the internal SCSI data cable between the controller and the hard
drive, and voila, it works! I backed up my entire Linux network server
(only about 300 mb) in about 15 minutes (this seems somewhat slow, but
it's an old AHA 1542C card set at the "standard" bus speed so it isn't
gonna scream). whew! Now I just gotta get some mounting hardware so I
can permanently mount it internally.
The drive unit itself (distinct from the external housing it came in)
claims to be a WangDAT 3400DX. however it is similar to but not the
same as the one pictured and described in the WangDAT documentation
available on the Tecmar web site. Specifically some of the jumper
blocks are located/oriented differently with a different number of pins.
Anyone here have any good ideas on how to tell which pins specifically
are the ones that enable hardware compression, in lieu of accurate
docs? (I just wanna make sure compression is enabled before I close it
up inside the computer.)
Thanks again!
Fred
> > Q: Does it matter which connector on the drive has the terminator and
> > which has the cable? They don't seem to be marked.
>
> If you peeked into the cabinet, here's what you'd see:
>
>
> EXTCONNECTOR ------- CONNECTOR --------- EXTCONNECTOR
> |
> |
> DRIVE
>
> The terminator must be the last thing on the SCSI chain. As you can see from
> the above, if you hook the terminator on the left and the computer cable from
> the right, the terminator is the last thing on the SCSI chain. If you hook the
> terminator on the right, and the computer cable on the left, the terminator is
> STILL the last thing on the SCSI chain.
>
> Short answer: No, it doesn't matter.
>
> > I'm running RH 5.2, 2.0.36 kernel.
> >
> > When I boot up the controller DOES NOT report the existence of the
> > drive. I'm thinking this is a bad sign, am I right?
>
> A bad sign, yes. Make sure that the tape drive is not at the same SCSI address
> as something else on your SCSI chain, take the cabinet cover off and make sure
> that the SCSI connector has not somehow jiggled out of the tape drive, check
> the DIP switches or jumpers to make sure that you don't have something weird
> enabled (or disabled), and all the other usual stuff you do when debugging.
>
> --
> Eric Lee Green [EMAIL PROTECTED]
> Software Engineer Visit our Web page:
> Enhanced Software Technologies, Inc. http://www.estinc.com/
> (602) 470-1115 voice (602) 470-1116 fax
--
---- Fred Smith -- [EMAIL PROTECTED] ----------------------------
"Not everyone who says to me, 'Lord, Lord,' will enter the kingdom of
heaven, but only he who does the will of my Father who is in heaven."
------------------------------ Matthew 7:21 (niv) -----------------------------
