hot pull disk doesn't seem to work

[peetaur]

When I remove a virtio .raw disk from a VM, it still appears in /dev/vdb in the VM. In my case, this disk is on an NFS server. Is this expected? What should I do to actually remove it?

"qm monitor 100" followed by "info blocK" lists the disk, but "qm config 100" does not list the disk anymore. (see code block below)

Issuing "shutdown -r now" does not remove the disk either, but using the proxmox gui to kill the vm, or "shutdown -h now" and starting again removes the disk. Anyone know if this is normal? What formats are you using, and does hot pulling disks work for you?

$ qm config 100
bootdisk: virtio0
cores: 4
ide2: none,media=cdrom
memory: 512
name: test
net0: virtio=CA:F0:7E:04:7F:B4,bridge=vmbr0
ostype: l26
sockets: 1
unused0: nfsserver:100/vm-100-disk-1.raw
virtio0: local:100/vm-100-disk-1.raw

$ qm monitor 100
Entering Qemu Monitor for VM 100 - type 'help' for help
qm> info block
drive-virtio1: removable=0 io-status=ok file=/mnt/pve/nfsserver/images/100/vm-100-disk-1.raw ro=0 drv=raw encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
drive-ide2: removable=1 locked=0 tray-open=0 io-status=ok [not inserted]
drive-virtio0: removable=0 io-status=ok file=/var/lib/vz/images/100/vm-100-disk-1.raw ro=0 drv=raw encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0

(at this point I shut down the vm with "shutdown -h now")
qm> info block
ERROR: VM 100 not running

qm> info block
drive-ide2: removable=1 locked=0 tray-open=0 io-status=ok [not inserted]
drive-virtio0: removable=0 io-status=ok file=/var/lib/vz/images/100/vm-100-disk-1.raw ro=0 drv=raw encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
qm>

 

[dietmar]

There is no hotplug by default. You need to stop/start the VM to activate configuration changes.

 

[peetaur]

In that case, I suggest adding a message to the GUI when making changes.

Or ideally, put a note on each line that needs a reboot, such as a "*", or a new column showing the effective setting. For example:

And you said "by default". Does that mean there is a way to activate it? And what are the side effects?

 

[tom]

just to note, a restart will not help as its the same a reboot.

you need to stop/start to apply changes.