I create a vg1 on one SSD and create a lv1 in vg1. Then I run: sudo thin_check /dev/mapper/vg1-lv1 It shows: examining superblock superblock is corrupt bad checksum in superblock Can someone teach me how to fix corrupted superblock? _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/