[gpfsug-discuss] GPFS Remote Cluster Co-existence with CTDB/NFS Re-exporting

[service at metamodul.com]

...
last week, you are in for one wild ride.  I would also point out that the
flapping did not stop until we resolved connectivity for *all* of the clients,
so remember that even having one single half-connected client is poisonous to
your stability.
...
In this context i think GPFS should provide somekind of monitoring better than
ping. In the good old days remote clusters even over wan might not exist that
often but i think it changed pretty much nowadays..
 
If remote clusters are even out of the management ability/responsiblity of the
cluster admin, remote firewalls/network settings  can have seriously impact on
the local cluster without the ability to fix the problem. Something nobody would
like to see.
 
With kind regards
Hajo
 
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