Alfonso,

You are correct in the fact that the *architecture* of a Lustre file system greatly influences the performance – both good and bad.

That said, the MGS is very low in terms of resources used or required.  So, rather than thinking of splitting the MGS and MDS in terms of performance, it is better to think of splitting them in terms of overall functionality within the Lustre file system – and in that regard (features, etc.) it is better to have the MGS on one node and the MDS on another node.

As for architecting to get a high level of performance, please see:

http://www.intel.com/content/www/us/en/software/architecting-a-high-performance-lustre-storage-solution.html

Dr. Brett Lee, Solutions Architect High Performance Data Division, Intel  +1.303.625.3595

From: HPDD-discuss [mailto:hpdd-discuss-bounces@lists.01.org] On Behalf Of Alfonso Pardo
Sent: Wednesday, March 19, 2014 8:36 AM
To: hpdd-discuss@lists.01.org
Subject: [HPDD-discuss] performance split mds mgs

Hello,

I must implement a new lustre file system and optimize it to get a high level of performance. I wonder: can I get more performance, If I split the MDS and the MGS in two different machines?

Thanks!!!

Alfonso Pardo Diaz
System Administrator / Researcher
c/ Sola nº 1; 10200 Trujillo, ESPAÑA
Tel: +34 927 65 93 17 Fax: +34 927 32 32 37

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