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 ...

SoundmanArt
Jun 10, 2019
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!

SoundmanArt

Apprentice

May 16, 2019

Also, I upgraded to 6.10.0 firmware to no avail.

Sandshark
Sensei - Experienced User
May 17, 2019
If you go to the Network page, does it show you are connected at 1Gbps? Does you computer show a similar connection speed?
- StephenB
  Guru - Experienced User
  May 17, 2019
  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.
  - SoundmanArt
    Apprentice
    May 17, 2019
    Here is the 2nd file.
    
    Netstat.pdf33 KB
- SoundmanArt
  Apprentice
  May 17, 2019
  Both the computer and the NAS show 1Gbs.
  
  I've even tried it on different network connections on the NAS and on the computer.
- SoundmanArt
  Apprentice
  May 17, 2019
  Well, apparently, it didn't like my first reply. I wasn't sure which network log file you needed, so I'm sending 2.
  
  I copied a 507.9 MB file. I made 3 copies as follows:
  
  1. Copied from my Thunderbolt 2 RAID array -> Thunderbolt 3 drive - 3 seconds.
  
  2. Copied from my Thunderbolt 3 drive -> ReadyNAS - 8 seconds
  
  3. Copied from my ReadyNAs -> Thunderbolt 3 drive - 6 seconds
  
  None of those were bad.
  
  I also noticed while looking at the logs, one of my other computers was trying to connect to the ReadyNAS and was being rejected because the account no longer existed. However, it was logging each of those attempts. That could have been slowing it down. So I recreated that account.
  
  I will also copy a 1 TB folder to see how long that takes. That's where I've been having issues.
  
  Thanks.
  
  Network_Settings.pdf46 KB
  - SoundmanArt
    Apprentice
    May 17, 2019
    More info that I had put in my earlier reply that I forgot to add this time.
    
    I am running (2) 12 TB drive in the RN3138. They are in a JBOD configuration. I previously had (4) 10 TB drive in it in a RAID 5 configuration (as I recall). But since they were running slowly, that's one of the changes I made to try to speed things up.