ICP GRD RD Series, User Manual

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During the installation of the GDT driver, additional tools are copied into the /etc di-
rectory. Before you can use them you have to create a special device file named
/dev/rgdth by means of "link"; this device file has to be placed on a device of a GDT
Host Drive.
For example, on ICP Controller 0 we have the Host Drive 1 which is HA 0, Target-ID 0,
LUN 1 under Interactive Unix. The corresponding special device file is
/dev/rdsk/c0t0dl1s0 (c0 = HA, t0 = Target-ID 0, d0 = LUN 0, s0 = Unix partition).
By means of "ln /dev/rdsk/c0t0d1s0 /dev/rgdth", the required special device file is ge-
nerated.
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A media change can be made with UNIX commands MOUNT and UNMOUNT . Please
make sure that the removable hard disk keeps its GDTSETUP drive number when
changing the media, otherwise a separate ID/LUN entry is necessary for each single
media (since the drive number depends on the media and not the device containing
it).
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If you change the hardware configuration of your PCI computer system, it may happen
that the GDT is assigned to a different IRQ, as it was assigned during the installation
and operation of UNIX. In this case you need to run the installation again with a GDT
driver for the new IRQ, or change the hardware configuration so that the old IRQ is
available for the GDT again.