How to remove unused Devices

[Manish_28]

We have HP superdom. It has 12 Fiber Channel Cards. We have given SAN disk drives to this server using IBM San Volume Controller.

As these devices are on multipath. Each device is visible under 8 different paths( 8 different CTD nos.). we have reached to the level where our Controller no. for these Disk drives are already 255 (C255t16d7).

As a result we can not able to access more SAN Devices. There are few devices which we unallocated from the system. What are the steps I have to take so that I can remove the "No Hardware Found Devices" without REBOOT

Is there any way I can specify cXXtXXdXX for new non claimed devices?

There are also gaps in CxxTxxDxx device id's What Logic HP uses when it creates CTD no. for each device?

Is there any document available for steps in removing " No Hardware found" Device Files?

Your help is highly appreciated.

Regards,
Manish

[Cesare Salvioni]

hi
in my knowledge there is no way to avoid creating special files and entry in kernel table untill the system can see the device
I mean that only way is to configure the SAN in order to hide not wanted duplicated path to hpux box.

To delete specific devices and entry in the kernel use the command rmsf.
You can use the command with option -H
For more information see the man:

http://docs.hp.com/en/B2355-90692/rmsf.1M.html

hope it helps

[Uday_S_Ankolekar]

You can use rmsf command but be careful!
rmsf -H

-USA..

[Manish_28]

We will use rmsf -H option. Thanks for your help