[KLUG Members] Server Problem (long)

[Daniel Szalay]

I wonder if having the tape drive connected to the same controller (but
different port) as the hard drives is causing a problem?

Dan

-----Original Message-----
From: members-admin@kalamazoolinux.org
[mailto:members-admin@kalamazoolinux.org]On Behalf Of Mike Slack
Sent: Saturday, December 15, 2001 9:35 PM
To: members@kalamazoolinux.org
Subject: Re: [KLUG Members] Server Problem (long)


I have had very similar problems with the coexistence of the scsi tape
driver and the ips driver (for IBM ServeRAID PCI card).  You can see the
details in my message to this list dated 11/28.  I haven't had the time to
really figure out the problem yet, (it could be a hardware problem) but I am
guessing that at least one of these drivers is not written too well.  One of
my friends who has written literally thousands of Unix device drivers tells
me that some of the existing (commonly used) Linux device drivers are REALLY
poorly programmed.  I can say one thing I definitely do not like about the
scsi tape driver is that you can't seem to kill any mt process (like erasing
a tape) if something does go wrong.

Mike

--
Mike Slack
mike@slacking.org
--
"If we knew what it was we were doing, it wouldn't
be called research, would it?" --Albert Einstein


Daniel Szalay (DSzalay@chartermi.net) wrote:
> Over the last few months I've been building a home server using RH 7.1
using
> a mix of new and used parts. It's a 266Mhz PII with 384 meg of memory and
a
> 32 meg ATI video board. The drive system consists of an Adaptec 29160
> controller with three Quantum 9.1 Gig SCSI's in a Raid 5 configuration.
Also
> connected to this controller is a Seagate Scorpion-24 DDS-3 tape drive.
I'm
> having a problem accessing this drive.
>
> When I issue the command "mt -f /dev/st0 status" (or any mt command) I
> receive no response from the tape drive and my session hangs. I then have
to
> start a new session and reboot to free up the locked one. I know the drive
> works because it's brand new, and prior to loading Linux I installed a
copy
> of NT 4 to check the hardware (since I have more experience with NT than
> Linux), and it worked fine, backing up and restoring. I checked Seagate's
> web site and the drive is compatible with Linux. However, the installation
> book has several specific setups for the different flavors of Unix
involving
> jumpers on the drive. No mention of Linux though.
>
> What am I doing wrong?
>

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