Why So Slow UNRAID

[grumpy]

Spoiler

I have just discovered that my network slowdown is my Unraid. (I have been ignoring for long time)

Using BlackMagic Speed test between local and the 2 NAS's really shows the poor performance from UNRAID to the point I'm reconsidering my decision to continue with Unraid. Just put in a second Synology and be done with it.

 

But first I thought I would ask for help/pointers in correcting this major slowdown.

 

There are 4 images.

Local PC Samsung 860 EVO M.2 2TB,

Synology populated with 8 Iron Wolf 10 TB,

Unriad share with cache and share without cache (NC), 4 (1 as Parity) Seagate 16TB HDD Exos X16 7200 RPM 512e/4Kn SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive (ST16000NM001G)

Cache Drive Western Digital 4TB WD Red SA500 NAS 3D NAND Internal SSD

 

The Synology is extremely close to the local speed (beating it)

But the Unraid is extremely slow

Iperf3 is about 7 GBs to Unraid ; not optimum but not the problem.

 

 

 

Unraid system:    Unraid server Pro, version 6.11.5
Motherboard:    Dell Inc. 002KVM, Version: A01, s/n: /GH1V9Z2/CNFCW0098C00GC/
Processor:    Intel® Xeon® W-2155 CPU @ 3.30GHz
HVM:    Enabled
IOMMU:    Enabled
Cache:    L1-Cache = 0 KiB (max. capacity 0 KiB)    
    L2-Cache = 0 KiB (max. capacity 0 KiB)    
    L3-Cache = 0 KiB (max. capacity 0 KiB)    
Memory:    32 GiB DDR4 Single-bit ECC (max. installable capacity 3072 GiB)
    DIMM1: Hynix HMA82GR7JJR8N-VK, 16 GiB DDR4 @ 2666 MT/s
    DIMM2: Hynix HMA82GR7JJR8N-VK, 16 GiB DDR4 @ 2666 MT/s
Network:    bond0: fault-tolerance (active-backup)
    eth0: 10000 Mbps, full duplex, mtu 1500
    eth1: interface down
Kernel:    Linux 5.19.17-Unraid x86_64
OpenSSL:    1.1.1s
P + Q algorithm:    23849 MB/s + 44160 MB/s

 

[grumpy]

solution