[Lustre-discuss] mdt mgs ost's on same node?

Brock Palen brockp at umich.edu
Wed Nov 7 14:39:02 PST 2007


On Nov 7, 2007, at 4:34 PM, Oleg Drokin wrote:

> Hello!
>
> On Nov 7, 2007, at 3:52 PM, Brock Palen wrote:
>
>> We would like to run a mdt and mgs on a node that will also have
>> devices providing some ost's  is this a problem?  Does it run into
>> the same problems as a client thats also a server has leaving us in
>> unrecoverable state?
>
> Yes, this has similar recovery implications at the moment - this  
> configuration will not have recovery working, because mds that is a  
> client of ost is not available for replay. But we plan to fix this  
> eventually.

Whoops I guess I confused some people (or im confused now)  the  
server would not be a clinet of the file system, but would be a mds  
and oss at teh same time.  Is this a problem?  No repeat No OSS MDS  
or MGS will mount the final filesystem.

>
> Bye,
>     Oleg
>
>




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