Shell Programming and Scripting

Let's pick one of the tests and assume that OutputW and OutputOK are other scripts or local functions.

There is a basic logic error here. The main condition does not work unless perhaps there is only ever one disk on a HP-UX system! Not sure about the syntax either.
We should run ioscan only once because it is a very powerful program and can cause the view to change. Be aware that running ioscan can cause dead hardware to completely disappear from the inventory (and therefore not show as NO_HW).
Let's try something lke this (untested and purely to demonstrate logic and not recommended).

Code:

ioscan -fnC disk > /tmp/ioscan_fnC_disk # Store output from ioscan
total_count=$(egrep "CLAIMED|NO_HW" ioscan_fnC_disk|wc -l)
dead_count=$(grep "NO_HW" ioscan_fnC_disk|wc -l)
if [ ${total_count} -eq  0 ]
then
        outputW "Disks: No Disks found."
else
        if [ ${dead_count} -gt 0 ]
        then
              outputW "Disks: Not CLAIMED disks detected."
        else
              outputOK "Disks: All Disks are CLAIMED"
        fi
fi
rm -f ioscan_fnC_disk # Clean up workfile

On my systems I run ioscan -fn (i.e. all hardware) daily and compare this output with the output from the same command yesterday. No attempt to predict every possible error output from ioscan. If there are differences, this is reported as a major error. Obviously if you detect a failure and repair it you will get one false alert for the broken hardware re-appearing.
I started doing this after discovering that a major hardware failure can cause a crash and reboot during which the dead hardware can completely and silently disappear from the ioscan inventory.
That reminds me. Don't forget to have a script to read the syslog and identify anything abnormal (and I don't mean broken printers).