[DRBD-user] Using multiple routes to synchronize

Maurice Volaski mvolaski at aecom.yu.edu
Fri Jul 1 23:47:55 CEST 2005

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Someone previously asked:

>Hi there!
>
>i'm running heartbeat with drbd mirroring.
>the heartbeats are being sent by eth1 and ttys0. the drbd devices are
>mirrored over eht1, too.
>if eth1 breaks, no more data is being mirrored, but the heartbeats still get
>over ttys0. is that a problem?
>imagine, the server crashes after eth1 was broken. the slave overtakes the
>services, but the data isn't up-to-date, because mirroring doesn't work
>anymore.
>so ive lost some important data.
>
>is there a possibility to prevent this problem?
>i thought about automatically change the mirror device to eth0, when eth1
>fails.
>

I'm now in the same situation. Hearbeat is on eth0 and I can't go 
beyond that. Is there any plan to allow multiple independent pathways 
to synchronize? I don't see anything on the road map page, 
http://svn.drbd.org/drbd/trunk/ROADMAP. Simple NIC bonding won't help 
because the NICs in my case are on wholly different networks.
-- 

Maurice Volaski, mvolaski at aecom.yu.edu
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University



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