Hi, ime having odd results from both rsync and 'cp -au'. Basicaly they both think there are big diferences between 2 dirctories I am trying to mirror, even though I have just run the comand. Wondering if it is something to do with this:

ben@jupiter:~$ mount | grep back
/dev/sdb1 on /mnt/backup01 type ext4 (rw,relatime,stripe=8191,data=ordered)
/dev/sdc1 on /mnt/backup02 type ext4 (rw,relatime,data=ordered)
ben@jupiter:~$

The history here is /dev/sdb1 was a repurposed raid0 drive (from a d-link sharestation). I removed the raid dev endteries but maybe I left something.

Ben

Have a look at mdadm --zero-superblock

Yes, I know how to remove the supoperblock. Thing it it is no longer a raid device so it does not work.

The drive is probably still marked as belonging to a raid array. That's why the option, stripe, is being used to mount it.