First, let me thank all the people who responded so quickly.
My original question was:
I was used to run on DU 3.x. My current client uses Digital Unix 4.0B. I
am not the system administrator here, except for a small alphaserver 1000
that we use to test some stuff in a lab.
I had to install an external tape drive and a supplementary hard disk in
that machine last week and was a bit frustrated when I discovered that you
still have to reboot with genvmunix and rebuild the kernel to enable the
new hardware.
Wasn't DU 4.x supposed to ease that process ? I don't have all the
documentation handy for that system, so I could not look into it. Is there
an easier way to add new devices ?
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And here are some specific answers:
From: "Idris W Morgan" <iwm_at_uvo.dec.com>
Provided that the adapter is configured into the kernle there should be
no
need to rebuild the kernel. You simply
do :
cd /dev
./MAKEDEV tz# rz# <---- where # is the SCSI id number calculated thus:
(8 * bus #) + SCSI target id of device
regards
- - - - -
From: Alan Rollow - Dr. File System's Home for Wayward Inodes."
<alan_at_nabeth.cxo.dec.com>
You have to build a new kernel when you add a SCSI adapter or other
I/O backplane connected device. For adding SCSI disks, tapes and
media changers on an existing SCSI bus you shouldn't have even
reboot, if you can add the device without unterminating the bus.
It should be sufficient to use scu(8) to scan the bus and the
new device will be usable. You do still have to create the
special files for it.
For disks connected through the RAID backplane controllers, you
may need to update the kernel so that there are "re" devices
for each logical unit in the configuration file. In such a
configuration it may best to add all 8 devices per controller
ahead of time.
- - - - - - -
It should automatic recognise a new device at boot time. You should only
need to rebuild the kernel if you change the controller configuration.
See the scsimgr(8) manual page for information about scanning for new
devices.
Stephen.
--
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// \\
// Stephen Carpenter "One inode short of a file system" \\
// \\
\\ UNIX Ambassador sac_at_uvo.dec.com //
\\ Digital Equipment Co. Ltd //
\\_______________________________________________________________//
- - - - - - -
From: "Olle Eriksson" <olle_at_cb.uu.se>
As long as you don't add a new controller the devices should be auto-
magically found. You may need to create the device files though. I
have verified this once with a disk and it worked at least in that
case.
Received on Mon Oct 06 1997 - 17:47:13 NZDT