Help Required on HP Fibre Channel Interfaces

[Manjunath Shastry]

I am trying to disable a few daemons on HP-UX 11.0 as the Application used on it is calculation insentive. I am unable to figure out the function of HP Fibre Channel Interfaces
as I am trying to disable it.

Would appreciate if I can get a brief idea about it.

[Ross Zubritski]

Hi,

As long as you do not have any externally connected FC devices, i.e a Fiber Channel raid array, you can diasble this at startup.

Regards,

RZ

[Vincent Fleming]

If you're using the FC interfaces, you should not be turning them off...

But if you're not using them - they don't consume any CPU resources.

So, turning them off won't do anything anyway.

See the fcmsutil command's "man" page for details on manipulating the FC interfaces.

Good luck,

Vince

[Chris Vail]

May I suggest that, if you believe that your math calculations are being screwed up or slowed down by the fiber channel cards, you probably have too slow a system? Those cards are very intelligent: the load they put on the system even when configured is miniscule. Deconfiguring them won't buy you many clock cycles or bus bandwidth. If you're not using them, just remove the cards when you power the system down next. But removing them will not get you many CPU cycles back. I suggest you have a performance problem that needs further investigation. Why don't you post your performance issues here, and we'll kibbitz.


Chris

[Steven E. Protter]

Install this.

https://payment.ecommerce.hp.com/cgi-bin/swdepot_parser.cgi/cgi/try.pl?productNumber=B6849AA&date=

It's called Bastille, a security hardening product.

It comes with run instructions. One of the nice things it does is run through your daemons and give you the option to shut down a lot of obsolete ones.

It also creates documentation about other daemons you may wish to shut down.

Nice side benefits that improve performance.

Here is a performance measurement/collection script that will allow you to look in many areas for performance tweaks. (atached) Created by HP, upgraded and modified by me. You can set the data collection period in seconds and it all runs in background.

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