Hi, no response on this the first time I sent it around. Can anyone
help me on this?
Thanks,
bob
-------- Original Message --------
Subject:
[Lustre-discuss] question about routing between subnets
Date:
Fri, 21 Jan 2011 15:48:25 -0500
From:
Bob Ball
To:
Lustre discussion
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?
Thanks much,
bob
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OK, so, finally with time on my hands, I find I can make this work.
Sorry about the message list traffic.
bob
On 1/25/2011 9:51 AM, Bob Ball wrote:
Hi, no response on this the first time I sent it around. Can
anyone help me on this?
Thanks,
bob
-------- Original Message --------
Subject:
[Lustre-discuss] question about routing between subnets
Date:
Fri, 21 Jan 2011 15:48:25 -0500
From:
Bob Ball
To:
Lustre discussion
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?
Thanks much,
bob
_______________________________________________
Lustre-discuss mailing list
Lustre-discuss-aLEFhgZF4x6X6Mz3xDxJMA@public.gmane.org
http://lists.lustre.org/mailman/listinfo/lustre-discuss
_______________________________________________
Lustre-discuss mailing list
Lustre-discuss-aLEFhgZF4x6X6Mz3xDxJMA@public.gmane.org
http://lists.lustre.org/mailman/listinfo/lustre-discuss
_______________________________________________
Lustre-discuss mailing list
Lustre-discuss-aLEFhgZF4x6X6Mz3xDxJMA@public.gmane.org
http://lists.lustre.org/mailman/listinfo/lustre-discuss
Cliff White
2011-Jan-25 17:36 UTC
[Lustre-discuss] Fwd: question about routing between subnets
The MGS can be behind an lnet router. So, provided you have LNET routing set up between A and B, the MGS should be okay with only a subnet A address, clients on B with proper routing configuration should be fine. The address on net C is thus immaterial. cliffw On Tue, Jan 25, 2011 at 6:51 AM, Bob Ball <ball at umich.edu> wrote:> Hi, no response on this the first time I sent it around. Can anyone help > me on this? > > Thanks, > bob > > > -------- Original Message -------- Subject: [Lustre-discuss] question > about routing between subnets Date: Fri, 21 Jan 2011 15:48:25 -0500 From: > Bob Ball <ball at umich.edu> <ball at umich.edu> To: Lustre discussion > <lustre-discuss at lists.Lustre.org> <lustre-discuss at lists.Lustre.org> > > 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? > > Thanks much, > bob > _______________________________________________ > Lustre-discuss mailing listLustre-discuss at lists.lustre.orghttp://lists.lustre.org/mailman/listinfo/lustre-discuss > > > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss at lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss > >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.lustre.org/pipermail/lustre-discuss/attachments/20110125/1f789929/attachment-0001.html