Greetings,

Ive been using a JMB585 in my mininas for a while. Its mostly been fine but recently with alot of new media being added the mover is working for longer and im noticing that when it is moving the system grinds to a halt.

My nas hosts *arr and support services, while another machine runs plex. Mounting the shares over SMB, when not moving things start playing instantly. When the mover is running nothing on the array will play, things on the SSDs play fine.

These are my two groups of disks. sdf and sdg are ssds in my cache pool. The rest are in the array, SDK is my parity disk.

IOMMU group 10: [1022:43ec] 02:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] A520 Series Chipset USB 3.1 XHCI Controller

[1022:43eb] 02:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] 500 Series Chipset SATA Controller

[0:0:0:0] disk ATA CT1000BX500SSD1 056 /dev/sdf 1.00TB

[4:0:0:0] disk ATA CT1000BX500SSD1 056 /dev/sdg 1.00TB

IOMMU group 11: [197b:0585] 06:00.0 SATA controller: JMicron Technology Corp. JMB58x AHCI SATA controller

[7:0:0:0] disk ATA ST8000VN004-2M21 SC60 /dev/sdh 8.00TB

[8:0:0:0] disk ATA ST8000DM004-2U91 0001 /dev/sdj 8.00TB

[9:0:0:0] disk ATA ST8000VN004-2M21 SC60 /dev/sdk 8.00TB

[10:0:0:0] disk ATA ST8000VN004-2M21 SC60 /dev/sdl 8.00TB

As you can see ive got all my spinning array disks on the JMB and im wondering if thats the problem. Forcing everything through the m2 connector.

The SSDs are on motherboard sata connectors and i have 2 free mb sata connectors.

Should i rearrange these to have the SSDs and parity on MB sata ports, and the data disks on the JMB? Ive got another pair of disks waiting to go in so ill end up using all the JMB ports eventually.

When i say low speeds im looking at something like this, While the mover is running.

CPU load is low, between 5 and 15% while the mover is running. Its a AMD 4600 i had spare. MB is a A520i

In an ideal world id have a pcie sata card, but im using the pcie for a gpu presently that i cant put in the other device.

Edited February 4Feb 4 by Uirel

10 hours ago, Uirel said:

Should i rearrange these to have the SSDs and parity on MB sata ports

You can try, but doubt it's related to the controller.