I did it this morning!
My disk became slow and noisy, disk usage at 80%.
First I run fsck with -p option (automatic repair) on the ext3 partitions:
fsck -p /dev/sda2
fsck -p /dev/sda7
fsck -p /dev/sda9
Than I repaired the ifs partition (data), but the partition needs to be unmounted:
Finally the xfs repair command:
xfs_repair -n /dev/sda2
The disk now is like new!
I thinks it's even better erasing all the data...