From: Bob Booth - UIUC (booth@UIUC.EDU)
Date: Fri Aug 01 2003 - 12:58:09 EDT
FCS errors are Frame Check Sequence errors, and can be caused by electrical
interference, bad cable, transeiver, etc. They usually indicate a bit error
during transmission or reception.
Might have something wrong with the receiver pair in your cable.
just a thought.
bob
On Fri, Aug 01, 2003 at 11:49:43AM -0500, Taylor, David wrote:
> I'm don't want to perform a test. We are in the middle of the
> production day. I want to move the IP address from one NIC to another,
> with as little impact on the users as possible.
>
> We are having some performance problems with the boot/service NIC in my
> cluster. I have nothing in errpt about it but, at the switch we are
> seeing a ton of "FCS" errors (don't really know what that it) The
> symptoms are horrible up stream (to the NIC) speed. Down stream hauls
> a**. We've verified duplex and speed settings on all equipment. Next
> test is to cable to a different port on the switch. If the behavior
> still exists I'm going to want to take the boot/service NIC out of the
> picture. I'm looking for the gentlest manner in which I can do this
>
> -----Original Message-----
> From: Bruce Harvey [mailto:BruceH@ROUTESCAPE.COM]
> Sent: Friday, August 01, 2003 11:44 AM
> To: aix-l@Princeton.EDU
> Subject: Re: Force HACMP IP take-over ?
>
> Yes, but you'd be watching a true take-over, rather than a manual
> transfer-of-power ... It'd be a truer test of the software's proper
> operation.
>
> ----------------------------------------
> bth@comcast.net -- bruceh@routescape.com
> 443-465-1204 (personal) -- 410-403-2390 (office)
> -------------------------------------------
>
>
>
> -----Original Message-----
> From: Taylor, David [mailto:DTaylor@WBMI.COM]
> Sent: Friday, August 01, 2003 12:41 PM
> To: aix-l@Princeton.EDU
> Subject: Re: [aix-l] Force HACMP IP take-over ?
>
>
> That would work but would still be a bit disruptive. HACMP would have
> to determine that the NIC is no longer working and then move the address
> over. I'd like to tell HACMP to do it nicely.
>
> -----Original Message-----
> From: Bob Booth - UIUC [mailto:booth@UIUC.EDU]
> Sent: Friday, August 01, 2003 11:38 AM
> To: aix-l@Princeton.EDU
> Subject: Re: Force HACMP IP take-over ?
>
> Would
>
> ifconfig enX down
>
> work?
>
> bob
>
> On Fri, Aug 01, 2003 at 11:35:16AM -0500, Taylor, David wrote:
> > Is there a gentle method to cause my boot interface to fail-over to
> the
> > standby NIC? I know that I can force it by pulling the cable on the
> > boot adapter, or probably even with rmdev. I would like to do this in
>
> > the least disruptive manner as possible - while the system is still
> up.
> >
> >
> >
> > TIA
> >
> >
> >
> > David
> >
> >
> >
> >
> >
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