unable to format drive

[yyyy]

hello

for some reason when running mkfs to format the sda drive it keeps showing as busy even though no processes are using this disk.

root@pve:~# mkfs.xfs /dev/sda
mkfs.xfs: cannot open /dev/sda: Device or resource busy

Note that umount also shows that sda is not mounted.

Also when I try to wipe the disk using the GUI I see this:

disk/partition '/dev/sda3' has a holder (500)

Furthermore trying to wipe the sda1 partition shows this: error wiping '/dev/sda1': dd: invalid number: '0.9833984375'


GDISK is also showing no partitions? but lsblk shows sda1,2,3:
root@dws-pve:~# gdisk /dev/sda
GPT fdisk (gdisk) version 1.0.9

Partition table scan:
MBR: not present
BSD: not present
APM: not present
GPT: not present

Creating new GPT entries in memory.

Command (? for help): d
No partitions

 

[Neobin]

Double post:
https://forum.proxmox.com/threads/ceph-gui-has-corrupted-drive.137519

 

[yyyy]

Double post:
https://forum.proxmox.com/threads/ceph-gui-has-corrupted-drive.137519

Sorry yeah I didn't realise both went through due to network error, any way to delete this?