The node is unable to finish a database migration - the disk is unresponsive.
The RAID6 is slow and you run several nodes on the same RAID, they affects each other, so it’s expected to be unresponsive in a such setup.
However, please check permissions on databases - the SYSTEM user should have read-write permissions for database files. It’s better to make a SYSTEM be an owner for databases and folders with node’s data.
You may also try to move databases to SSD, if the reason is not permissions: