I am trying to do what would be a very simple task. I have two HDDs (spinning drives) and I am trying to move the data from one to the other using rsync.

The command in itself is very simple

rsync -r --info=progress2 /mnt/disk1/backupfolder /mnt/disk2/backupfolder

The amount of data to move is around 4tb.

Somehow, once around 89% and another at 94% the process dies, and halts the server itself, making it completely unavailable and unresponsive (pings don’t work, nothing hosted works, ssh does not work). Only a reset via button on the case works here.

At first I was under suspicion was temperature. After constantly checking the second time with beszel, seems everything is in the normal ranges.

Did anyone else experience such bizarre system shutdowns/hangs? In the meantime I am going to test the memory with memtest just to be sure is not that.

Edit: forgot to mention, both drive smart data gives a pass, although they are second hnd bought with warranty.

Edit2: memtest finished and nothing is there (thank goodness, because ram right now is just stupid priced). Some commenters mentioned something on the disks. Will now proceed with this lead