Many thanks to
Alan C. Davis
Davis Computer Consulting
Tru64 UNIX System Admin and Remote Support
Planning, Installation, Tuning, Upgrade, System
Healthcheck
and
alan_at_nabeth.cxo.dec.com
(sorry thats all I got...)
Original Question / Problem
I have an ES40 (10 pci slot model) running 4.0f using ADVFS I am trying to
install a KGPSA fibre controller.
I boot the machine to single user mode with genvmunix
mount -u /
I tried to mount /usr but was unable to... I learned that booting to the
genvmunix kernel changed my devices, once i changed the link in
/etc/fdmns/usr_domain I was able to mount it and run doconfig.
My concern is that / and /usr are on the same disk /dev/rz8a for / and
/dev/rz8b for /usr... why would the link to / remain the same /dev/rz8a yet
/usr changed to /dev/rz16b
I have been told that the ES40 has a priority bus. My diff controller for my
drives on the HSZ70's is in slot 9 or pci 1 slot 5.
My questions are...
1. Will this complicate matters in the future?
2. Is there an easy way to figure out which devices are real now and which
are not?
3. Is there a way to avoid this short of a system rebuild.
My current solution was to change back to my original kernel vs changing all
of my links within /etc/fdmns and am running without the KGSPSA drivers
installed. This is ok for now... but I need to get hot on that project again
and now have another monkey wrench in the works, I have a new DIFF SCSI card
that needs to be installed for my new TZ892.
Any help or guidance on this matter would be greatly appreciated.
The obvious solution was to put my KGPSA and my new DIFF SCSI controller in a
lower priority slot than my current DIFF SCSI controller connected to my
HSZ70. This isnt as easy as it seems... when the ES40 arrived from compaq
it had 1 DIFF SCSI controller installed in PCI 1 slot 5 so i naturally
connected my HSZ70 to it (not knowing about the priority bus). The below
diagram shows my current config and suggested config. Other suggestions were
to manually edit the kernel configuration but this also may cause problems
down the road say if I no longer work here the next admin does a kernel
rebuild now all his device names have changed... then he or she is saying
not very nice things about me... not to mention sitting here on a Sunday
trying to figure it all out. Another option is to upgrade to 5.x vs 4.x i
thought of this... but i am not ready to go to battle on this yet. Maybe
after the holidays. So.. the next and most simple solution is listed below.
CURRENT CONFIGURATION
Physical Slot Logical Slot PCI
0 Priority
Map Device Attached
1 1 Video 7 doesn,t affect priority
2 2 SCSI SE 8 SCSI 2 TZ 887
3 3 Blank 9
4 4 SCSI SE 10 SCSI 3 CD Rom
Physical Slot Logical Slot PCI 1 Priority
Map Device Attached
5 1 SCSI LVD SE 1 SCSI 0 Int HD,s (swap)
6 2 SCSI DIFF 2 Not Enabled TZ 892
7 3 Blank 3
8 4 KGPSA 4 Not Enabled N/A
9 5 SCSI DIFF 5 SCSI 1 HSZ70 (os & data)
10 6 Network 6 doesn,t affect priority
SUGGESTED CONFIGURATION
Physical Slot Logical Slot PCI 0 Priority
Map Device Attached
1 1 Video 7 doesn,t affect priority
2 2 SCSI SE 8 SCSI 4 TZ 887
3 3 Blank 9
4 4 SCSI SE 10 SCSI 5 CD Rom
Physical Slot Logical Slot PCI 1 Priority
Map Device Attached
5 1 SCSI LVD SE 1 SCSI 0 Int HD,s (swap)
6 2 SCSI DIFF 2 SCSI 1 HSZ70 (os & data)
7 3 Blank 3
8 4 KGPSA 4 SCSI 2 HSZ80 (data)
9 5 SCSI DIFF 5 SCSI 3 TZ 892
10 6 Network 6 doesn,t affect priority
Move SCSI card from PCI 1 slot 9 to PCI 1 slot 2 put new SCSI card in PCI 1
Slot 9. This will leave PCI 1 slot 3 open and PCI 0 slot 3 open and both
would be lower in priority than the DIFF SCSI card running the HSZ70.
The only draw backs to this solution is that I have to remember the new
device name for the cdrom (no big deal) and recreate the TZ 887 in legato,
which is also no big deal because I need to add the TZ 892 anyway.
Terrence R. Haupt
UNIX Systems Administrator
Abbott Laboratories.
Received on Wed Oct 18 2000 - 15:34:26 NZDT