Scriptable

/!\ Apply theses commands on each node of proxmox server /!\ My physical disk is /dev/sdb, please adapt for your case /!\ Remove VM or stop it before resize from Synology

1. Check the initial disk size

lsblk

 
- Resize the LUN in SCSI manager from Synology DSM
- Rescan the volumes and check again the right size of physical disk
iscsiadm --mode session --rescan
lsblk

- Resize the physical volume
pvresize /dev/sdb  

Enjoy !