[Lustre-discuss] question about routing between subnets
ball at umich.edu
Fri Jan 21 12:48:25 PST 2011
Our lustre 1.8.4 system sits primarily on subnet A. However, we also
have a small number of clients that sit on subnet B. In setting up the
subnet B clients, we provided lnet router machines that have addresses
on both subnet A and on subnet B, the MGS machine has addresses on both
subnet A and subnet B, and all the OSS have lnet routing that lets this
work. Our world is a happy place.
Now, due to other factors, we have to change the MGS subnet B address to
instead be on subnet C. Subnet C will be set up to have the usual IP
routing to find subnet B, but what will happen to the clients that exist
only on subnet B? Is there a way for them to find the MGS at boot time,
or are they going to stop working once this network change is effected?
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