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Vez's avatar
Vez
Aspirant
Jul 22, 2016
Solved

Poor read performance - 6.5.0 On Ultra 4 Plus

I upgraded to 6.5.0 a while ago, mainly to get the new plex updates, and have read of a slight performance hit, and I expectedthat.

 

However write performance is exceptional, able to write at 100Mbs (I used to get 80Mb before upgrade)

 

Read has turned pittiful at ~30Mbs. (I used to get 100MB before upgrade)

 

All via SMB.

 

I believe this is bottle necking my VMware cluster, which is anoying to say the least (although that using NFS).

 

Have I missed a setting somewhere?  Why is read so slow!!!

13 Replies

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  • Right I have shut down my VMware cluster and read performance is as expected 100mb via SMB.  Previously I was still able to get 100mb through put on my desktop with the VMware cluster running!

     

    So this would indicate to me an issue with NFS?  Any help would be welcomed.

     

     

    • Vez's avatar
      Vez
      Aspirant

      Right, single VM, 2 NFS threads, and SMB file transfers are ~30mb.  Turn the VM off and I get 100Mb again from SMB.

      • StephenB's avatar
        StephenB
        Guru - Experienced User

        Vez wrote:

        Right, single VM, 2 NFS threads, and SMB file transfers are ~30mb.  Turn the VM off and I get 100Mb again from SMB.


        Do you have any way to gauge how much I/O the VM is doing?

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