hurf@batcomputer.tn.cornell.edu (Hurf Sheldon) (03/23/90)
Well, we have a cornucopia of DS3100 problems ...
All on different systems and all somewhat puzzling.
1) System running 3.1/2.1 , 12mb rz55:
We added a WrenVI and an Exabyte to the scsi
bus. Everything is terminated correctly(we think).
The only thing I don't like is that the scsi cable
we were given is the ushielded variety like an
in-cabinet cable. The rz55 was rz1, the boot device,
so we made the new disk rz0 and the tape is at SCSI 5.
Problem:
Powering up with any of the drives powered up
gets a display screen filled with little sprinkles of
white and the system hangs. Turning off all the drives
allows the screen to blank white and then go to console.
Turning the drives on after the white blanking works
and everthing works ok from then on...
2) System running 3.101,/2.2 12mb, rz23 internal
This system had a maxtor 8760 added to it before
doing the upgrade. The root partition is on the
8760. The 8760 is rz0, the rz23 is rz3.
Problem:
It will not boot correctly with the 3.1
kernal, complaining that it can't find the rz23
or just hanging.
We were able to come up single user on the
rz23 with the 8760 disconnected. The 3.0 kernal
boots and runs fine from the 8760.
3)3.1 Systems with newish Exabytes,
2 very differnt systems as far a disks, memory, etc
2 separate instances so far.
Problem:
Even with the dip swith #3 set to even byte disconnect
the drive hangs on reads and writes. Futhermore,
thruput from the drive is abysmal, on the order of
23k/sec. THe drives do a lot of searching, clicking
as well. Systems with Exabytes purchased in the fall do not
have this problem.
4)3.0/3.1 systems
Serial lines turned on, DEC supplied cable used to
connect to terminals and macs running terminal
emulation.
Problem:
When the terminal is turned off the getty process for that
line runs amok, hogging the cpu.
Killing off that particular pid does not stop the problem.
Any and all insights, suggestions appreciated.
hurf
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