I am currently in process of migrating Unraid disks from ReiserFS to XFS.

I am using the following command to copy all contents of disk1 to disk4:

nohup rsync -avhHAX --partial --info=progress2 /mnt/disk1/ /mnt/disk4/ > /boot/rsync-disk1-to-disk4.log 2>&1 </dev/null &

I am currently 18 hours in and approximately 1.2TB have been copied. This seems like it is taking a very long time, as I am not even half way there.... and I have 2 more drives to do this to.

Granted it is an older system and drives (running Unraid v7.2.0):

M/B: Supermicro X7SPA-HF Version 1234567890 s/n VM134S014417

BIOS: American Megatrends Inc. Version 1.2a Dated 02/21/12

CPU: Intel® Atom™ CPU D525 @ 1.80GHz

HVM: Not Available

IOMMU: Not Available

Cache: L1-Cache: 48 KiB, L2-Cache: 1 MiB

Memory: 4 GiB DDR3 (max. installable capacity 4 GiB)

Network: eth0: 1 Gbps, full duplex, mtu 1500

Kernel: Linux 6.12.54-Unraid x86_64

OpenSSL: 3.5.4

Uptime: 2 days, 16 hours, 27 minutes

Drives are Western Digital Green 3 TB internal hard drives (WD30EZRX) running at 5400 RPM with a 64 MB cache and a SATA 6 Gb/s

Any suggestions on how to do this faster? (MOVER did not work- it errored on every file, so through telnet I killed all the processes associated with it. Even though it does not appear to be running on the server, the Unraid UI shows the MOVE button still deactivated stating "Disabled - Mover is running")

Please post diagnostics

7 minutes ago, MowMdown said:

Please post diagnostics

tower-diagnostics-20260807-0949.zip

One other thing I am noticing- Even though the command should be COPYING data from Disk1 to Disk4, I am seeing the FREE space (through Unraid GUI) slowly increasing. I believe when I started there was 160GB of free space- now their is 300GB free. To me this seems odd.

Now it is up to 311GB of free space on Disk1

That rsync command won't delete any source files, if data is disappearing, it won't be that. Maybe the mover is still running? And possibly why it's so slow? Cancel the rsync, wait 1 minute or so, and see if there's still disk activity.

I believe even though I killed mover yesterday, it started earlier this morning on the schedule. This explains why free space was going up on disk1. I switched the schedule to monthly, as I do not see a disable option.

[EDIT] GUI is still showing MOVER as running. And I can't find figure out how to stop the interface from showing it is still running. Looks like no more disk activity now on the MAIN page.

Before restart the rsync command again, is there a preferred command with appropriate switches that I should run to optimize performance? Perhaps not log to boot drive, etc?

I still have 2.5 drives to go.

Edited August 7Aug 7 by WannaTheater

Copying or moving data inside the array with parity will always be pretty slow, but it should be much, much faster than before, if it were doing two operations at the same time.

Oh yeah I missed that you were doing Disk1 -> Disk4 copy/move. That will be slow due to parity and the fact that unraid has to read and write to the same disk both times and parity at the same time which will always happen.