Hi,

 

I'm having a weirdProblem with my Transfer Speeds.

I have two HDD HGST Enterprise Drives with should give me about 150Mb/s and they do when I do a Speed Test via the Terminal. And when I run a parity check I get about 110 -130 Mb/s but when I use SMB or the Mover I get betwenn 11 - 14 Mb/s.

 

I don't understand how that works and it is not a Problem with the Client or Network I have a Cache NVME and when I use that over SMB I get about 330-350 MB/s.

 

I run Unraid as a Virtual Maschine in Proxmox the Driver are Connected via a JBOD USB3.0 so that Unraid gets all the SMART Data and has direct Access 

 

Can Someone help? 

 

EDIT: When I Copy from Unraid to Client I get about 135 Mb/s so it's just Write Performance 

Edited July 25, 20223 yr by Tom98

I Tried because it is VM to give it 15GB of RAM und 4 Cores but made it wores. 

10GB File 

First 3GB with 350MB/s and then 6MB/s

 

RAM is at 8% and CPU at about 32% while Coping 

You need to post your diagnostics and specify what share(s) you're seeing this on.

2 hours ago, Tom98 said:

run Unraid as a Virtual Maschine in Proxmox

And you may need to go to the Virtualizing Unraid subforum where others using Unraid in this unsupported way help each other. 

You need to enable write cache (on those drives). See

man hdparm

 

Hi, is that a Terminal Command? 

It says command not found but when I check with "hdparm -W /dev/sdb" it says Write-caching is on 

Odd ... Your reported symptoms (only writing is slow; and speed @ 10-20 MB/sec) are precisely indicative of a drive's write-caching disabled. But, there's no arguing with your test result (-W saying w.c. is ON) [assuming that /dev/sdb IS one of the two slowpokes]

 

Back to "Plan A" ... maybe Squid & others can see something from your Diagnostics [upload].

 

Edited July 27, 20223 yr by UhClem