Hi there,
when you disconnect / detach a disk device, it is still recorded within the HP-UX kernel, although it's not physically accessible anymore. That's exactly what the "NO_HW" entry from the 'ioscan' command means.
The HP-UX kernel can't remove this stale entry automatically when detaching a device. During a (re-)boot, the kernel removes these stale entries, but this can also be done manually by issueing the 'rmsf' command, so a reboot should not be required in most cases.
With the following commands you can remove such stale device nodes:
ioscan -fnCdisk |grep "NO_HW" |awk '{print $3}' |while read i
do
echo rmsf -H $i
rmsf -H $i
done
I'm not really a Clariion expert, but i suspect that with this Navcli stuff you just disabled the devices on the storage box, but not from the server's point of view. That's why the device is still recorded within the HP-UX kernel, so a manual removal with 'rmsf' is necessary.
Generally, it's always wise to have the most recent patches installed, especially regarding LVM, SCSI and Fibre Channel. In the ITRC, you can use the keyword search within the patch database to look for specific Clariion patches. If you have a support contract, you should also consider contacting the storage vendor (EMC) and / or HP support for further assistance.
Regards,
Karsten
