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SoundmanArt's avatar
SoundmanArt
Apprentice
May 16, 2019
Solved

Very Slow Read/Write and Time Machine Backup

I know this has been written about for many of the ReadyNAS servers, but I haven't seen it for exactly the same issues I'm having.

 

It's slllllloooooowwwwww.  Get the point.  It will take weeks to perform a Timemachine backup.  Days to copy a TB folder from my Mac to my NAS and Days to write it back.

 

I've changed hard drives, cables, switches.  It's slow with ALL of my computers, not just one.  I've tried Jumbo Frames and normal size frames.  I've tried with/without antivirus.

 

I have no idea where to look now.

 

Any advice would be greatly appreciated.

 

Thanks.

 

Art

 

 

 

  • I thought I'd close this discussion with the final outcome.

     

    I did open a ticket with Netgear.  They did replace the unit.  But it was still dreadfully slow.  It must be something in their OS that makes writes of small files dreadfully slow.  I even tried it on a high end Windows PC.  Same slow speeds.

     

    And I did once again verify that I did not have these slow speeds with an old Buffalo NAS that I still had lying around.  I got between 30-45 MB/second with that vs the 1 MB/second with the Netgear NAS.

     

    So I ended up purchasing a 5-bay USB-C drive enclosure to connect to my Mac.  Of course, I get blazing speeds with this.

     

    For now, I've put some old 3TB drives into the RN3138 and I've relegated it to be a backup NAS for my small computers.

     

    If/when they ever fix this issue, I might come back.  But I don't expect that to ever happen.

     

    VERY DISAPPOINTING!

     

55 Replies

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    • Sandshark's avatar
      Sandshark
      Sensei - Experienced User

      If you go to the Network page, does it show you are connected at 1Gbps?  Does you computer show a similar connection speed?

      • StephenB's avatar
        StephenB
        Guru - Experienced User

        Also, download the log zip file from the NAS, and look at the packet statistics in network_settings.log.  You can cut/paste them into a post here if you aren't sure what you are looking at.

         

        Have you measured the speed for normal NAS access (not time machine)?  If not, try copying a large file (perhaps 500 MB) in both directions, and let us know how fast that works.

         

        BTW, is the NAS model in your first post correct?  The RN3138 is a 4-bay rackmount model.

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