In a 3 node cluster, during the node upgrade the boot disk is cleaned. The partition table disappears. The node cannot boot anymore.
Portworx is installed.

Customer reported the following hypothesis:

"The node has many disks. Every time the kernel boots the disks are assigned different device name "/dev/sd?".
Because Portworx is installed and pointing to /dev/sdf for its KVDB Storage, you suspect that if the boot disk is assigned the name sdf, then Portworx is formatting the disk.
You report that this is reproducible if you reboot the node 5 times."

The ask is: Is this possible ?

Around 1 in 5 times.

1. Reboot Portworx node until it happens.

Disk is cleaned. No partition table.

This does not happen.