[Linux-HA] Re: deadtime, warntime, and drbd

[Lars Marowsky-Bree]

On 2005-03-08T12:27:55, Jason Joines <support at bus.okstate.edu> wrote:

> >1. You only have ONE heartbeat channel according to these logs. That's
> >BROKEN.
> > 
>    I think I have two channels if this is what you meant.  Each node is 
> supposed to communicate with the other over both eth0 and eth1 and with 
> the router over eth0.

OK, that's in your configuration, but if you look at the logs, eth0
_never_ is reported as up or down. Indeed I missed that it's reported as
being used, but it never seems to be working even for a single packet.

I'd suggest investigating that - maybe some firewall rule?

> >2. You don't have STONITH to protect you against split-brain scenarios.
>    I'll try to remedy this.

Good! That'll help you quite a bit.

>    Something must've happened, I just went back through the logs on 
> nodeb and found this:
> Feb 25 12:37:56 nodeb kernel: NETDEV WATCHDOG: eth1: transmit timed out
> Feb 25 12:37:56 nodeb kernel: tg3: eth1: transmit timed out, resetting
> Feb 25 12:37:56 nodeb kernel: tg3: tg3_stop_block timed out, ofs=2c00 
> enable_bit=2
> Feb 25 12:37:56 nodeb kernel: tg3: tg3_stop_block timed out, ofs=2400 
> enable_bit=2
> Feb 25 12:37:56 nodeb kernel: tg3: tg3_stop_block timed out, ofs=1800 
> enable_bit=2
> Feb 25 12:37:56 nodeb kernel: tg3: tg3_stop_block timed out, ofs=4800 
> enable_bit=2
> Feb 25 12:37:56 nodeb kernel: tg3: eth1: Link is down.
> Feb 25 12:37:59 nodeb kernel: tg3: eth1: Link is up at 1000 Mbps, full 
> duplex.
> Feb 25 12:37:59 nodeb kernel: tg3: eth1: Flow control is on for TX and 
> on for RX.

Hmmm, strange, such a message should have occured about 7 minutes
earlier. Maybe the switch rebooted, or the network interface truely got
stuck.

This will be less of a problem if you figure out what keeps eth0 from
working for you ;-)

Good luck!


Sincerely,
    Lars Marowsky-Brée <lmb at suse.de>

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