[lustre-discuss] slow write performance from client to server

Alexander I Kulyavtsev aik at fnal.gov
Mon Oct 15 16:59:48 PDT 2018


You can do a quick check with 2.10.5 client by mounting lustre on MDS if you do not have free node to install 2.10.5 client.

Do you have lnet configured with IB or 10GE? LNet defaults to tcp if not set. Can it be you are connected through slow management network?

Alex.

On 10/15/18, 6:41 PM, "lustre-discuss on behalf of Riccardo Veraldi" <lustre-discuss-bounces at lists.lustre.org on behalf of Riccardo.Veraldi at cnaf.infn.it> wrote:

    Hello,
    
    I have a new Lustre FS version 2.10.5. 18 OSTs 18TB each on 3 OSSes.
    
    I noticed very slow performances couple of MB/sec when RHEL6 Lustre 
    clients  2.8.0 are writing to the fielsystem.
    
    Could it be a Lustre version problem server vs client ?
    
    I have no errors either on server or client side  that can debug it 
    further...
    
    thanks
    
    Rick
    
    
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