mdadm RAID6 causing SATA errors

netthier

I have 4 HDDs connected via the included SATA cables:

1. # lsblk
   
2. NAME         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
   
3. sda            8:0    0  10.9T  0 disk
   
4. sdb            8:16   0  10.9T  0 disk
   
5. sdc            8:32   0  10.9T  0 disk
   
6. sdd            8:48   0  10.9T  0 disk

Copy the code

I ran the long SMART test on all drives and no errors were detected.
After creating a RAID array using

1. mdadm --create /dev/md0 --level=6 --raid-devices=4 /dev/sda /dev/sdb /dev/sdc /dev/sdd

Copy the code

The initial resync begins, but gets stuck after a few seconds.
dmesg logs are available here: https://paste.debian.net/hidden/b161164f/

Is this a problem with your SATA cables or the on-board SATA controller? Or maybe a software issue?
I will attempt switching out the cables later today to see if anything changes

Both the board and the drives are powered using an external ATX PSU, so I doubt its a power issue.

Note: last commit in the kernel directory is a95cf55eb5292c66c62fef90bd8d4abb5d776d17
Latest bundle I applied is v1.0.4a