How Do I Clear Residual Data Partitions?

Run the following command to check drive statistics. In the following figure, the residual data volumes are marked in red boxes.
```
lsblk
```
Take the bcache0 device as an example. Copy the LVM index of the target data volume and run the following command to clear data:
```
dmsetup remove ceph--f559c3f7--d0e8--4cdc--b1d5--4c7208990746-osd--block--9d4a70f9--b75a--4dfb--8b11--121734750846
```
Run the check command again to verify whether the preceding operation is successful. If information in the following figure is displayed, the operation is successful.
```
lsblk
```

Run the following command to check drive statistics. As shown in the following figure, the FSTYPE column contains information marked in the red box.
```
lsblk -f
```
Run the following command to clear a partition, for example, nvme1n1p2:
```
wipefs -a /dev/nvme1n1p2
```
Run the check command again to verify whether the preceding operation is successful. If information in the following figure is displayed, the operation is successful.

Parent topic: FAQs