Remote migration of cold VM - EERROR: no export formats for 'VM-pool:vm-9999-disk-0' - check storage plugin support!

P

__Peter__

Member
Proxmox Subscriber
Feb 27, 2020
4
1
23
While doing some testing with qm remote-migrate, I got this error message while trying to migrate a cold VM. However migrating it live works OK:

Code: 
qm remote-migrate 9999 9999 apitoken='Authorization: PVEAPIToken=root@pam!YY=XX-XX-XX-XX-XX,fingerprint=XX:XX...:XX',host=X.X.X.X --target-bridge vmbr0 --target-storage VM-pool --delete
-> ERROR: no export formats for 'VM-pool:vm-9999-disk-0' - check storage plugin support!

qm remote-migrate 9999 9999 apitoken='Authorization: PVEAPIToken=root@pam!YY=XX-XX-XX-XX-XX,fingerprint=XX:XX...:XX',host=X.X.X.X --target-bridge vmbr0 --target-storage VM-pool --online --delete
-> Works OK, and VM is migrated live

Any ideas??

Cheers,
Peter
 
To be precise, remote offline migration is supported, but only for certain storage combinations: e.g. ZFS -> ZFS works, RBD doesn't (our RBD plugin currently lacks offline export/import functionality).
 
  • Like
Reactions: __Peter__
fiona said:
To be precise, remote offline migration is supported, but only for certain storage combinations: e.g. ZFS -> ZFS works, RBD doesn't (our RBD plugin currently lacks offline export/import functionality).
Click to expand...
Is RBD still not supported yet?
 
Hi,
SERvus said:
Is RBD online supportet? I get the same Error, when I try to migrate from Ceph to Ceph.
Click to expand...
yes, (remote) live-migration should work no matter what storage type you are using. Remote offline-migration from RBD to RBD is still not implemented, unfortunately.
 
  • Like
Reactions: SERvus
fiona said:
Hi,

yes, (remote) live-migration should work no matter what storage type you are using. Remote offline-migration from RBD to RBD is still not implemented, unfortunately.
Click to expand...
Is there a different mechanism at work? Offline should be more easier than online, shouldn't it?
 
SERvus said:
Is there a different mechanism at work? Offline should be more easier than online, shouldn't it?
Click to expand...
Yes, live-migration uses QEMU's NBD export + disk mirroring. Remote migration is still in-development and RBD is shared within a cluster, so there simply was no need to have an export/import mechanism for offline migration. That's the reason it was not already implemented.
 
I think RBD to RBD is supported now as I managed to do it just now for 1 VM.
both the clusters have CEPH running and the VM on RBD successfully migrated to a new proxmox cluster on CEPH again.
wonderful

but another VM with TPM state did not work - any ideas for this
 
deepcloud said:
I think RBD to RBD is supported now as I managed to do it just now for 1 VM.
Click to expand...
With online migration, it works. With offline migration, it is not implemented yet.
deepcloud said:
both the clusters have CEPH running and the VM on RBD successfully migrated to a new proxmox cluster on CEPH again.
wonderful
Click to expand...

deepcloud said:
but another VM with TPM state did not work - any ideas for this
Click to expand...
Please share the full migration log and the VM configuration qm config <ID>
 
qm config 9997
-----------------------
agent: 1
balloon: 0
bios: seabios
boot: order=scsi0;ide0;net0
cores: 4
cpu: host
description: Server 2022
ide0: none,media=cdrom
machine: pc-q35-8.1
memory: 16384
meta: creation-qemu=8.1.2,ctime=1705037235
name: Win2022-Office
net0: virtio=BC:24:11:A3:F3:D1,bridge=vmbr0,firewall=1
numa: 0
ostype: win11
scsi0: Storage:vm-9997-disk-3,cache=writeback,discard=on,size=70G,ssd=1
scsihw: virtio-scsi-pci
smbios1: uuid=35245ac8-6179-4057-a50f-e461d1dc1a4a
sockets: 1
template: 0
tpmstate0: Storage:vm-9997-disk-2,size=4M,version=v2.0
vmgenid: 8c948c52-a326-48b2-9b3b-be57e6e7e882

------------------------------------------------------------------
command given in shell (this works perfectly for machines without TPM)
---------------------------------------------------------------------------------------------------------
qm remote-migrate 9997 9997 apitoken='PVEAPIToken=root@pam!roottoken=a75a33bf-47g2-2a24-9437-f7a81bb21e59,host=172.16.0.12,fingerprint=32:42:A5:E0:A1:14:86:AC:65:A3:1B:DA:CC:93:1D:D6:3E:13:64:33:64:BE:10:BC:11:74:35:58:C8:1A:87:EB' --online --target-bridge vmbr0 --target-storage RBDNVME --delete 1
---------------------------------------------------------------------------------------------------------

Establishing API connection with remote at '172.16.0.12'
2024-06-26 12:29:32 remote: started tunnel worker 'UPID:ww1r1u12:00360062:02EDA200:667BBC54:qmtunnel:9997:root@pam!roottoken:'
tunnel: -> sending command "version" to remote
tunnel: <- got reply
2024-06-26 12:29:32 local WS tunnel version: 2
2024-06-26 12:29:32 remote WS tunnel version: 2
2024-06-26 12:29:32 minimum required WS tunnel version: 2
websocket tunnel started
2024-06-26 12:29:32 starting migration of VM 9997 to node 'w12' (172.16.0.12)
tunnel: -> sending command "bwlimit" to remote
tunnel: <- got reply
tunnel: -> sending command "bwlimit" to remote
tunnel: <- got reply
2024-06-26 12:29:32 found generated disk 'Storage:vm-9997-disk-2' (in current VM config)
2024-06-26 12:29:32 found local disk 'Storage:vm-9997-disk-3' (attached)
2024-06-26 12:29:32 copying local disk images
2024-06-26 12:29:32 ERROR: no export formats for 'Storage:vm-9997-disk-2' - check storage plugin support!
2024-06-26 12:29:32 aborting phase 1 - cleanup resources
tunnel: -> sending command "quit" to remote
tunnel: <- got reply
2024-06-26 12:29:34 ERROR: migration aborted (duration 00:00:02): no export formats for 'Storage:vm-9997-disk-2' - check storage plugin support!
migration aborted

--------------------------------------------------------------------------------------------------------

log is below
------------------

2024-06-26 12:29:32 remote: started tunnel worker 'UPID:ww1r1u12:00360062:02EDA200:667BBC54:qmtunnel:9997:root@pam!roottoken:'
tunnel: -> sending command "version" to remote
tunnel: <- got reply
2024-06-26 12:29:32 local WS tunnel version: 2
2024-06-26 12:29:32 remote WS tunnel version: 2
2024-06-26 12:29:32 minimum required WS tunnel version: 2
websocket tunnel started
2024-06-26 12:29:32 starting migration of VM 9997 to node 'w12' (172.16.0.12)
tunnel: -> sending command "bwlimit" to remote
tunnel: <- got reply
tunnel: -> sending command "bwlimit" to remote
tunnel: <- got reply
2024-06-26 12:29:32 found generated disk 'Storage:vm-9997-disk-2' (in current VM config)
2024-06-26 12:29:32 found local disk 'Storage:vm-9997-disk-3' (attached)
2024-06-26 12:29:32 copying local disk images
2024-06-26 12:29:32 ERROR: no export formats for 'Storage:vm-9997-disk-2' - check storage plugin support!
2024-06-26 12:29:32 aborting phase 1 - cleanup resources
tunnel: -> sending command "quit" to remote
tunnel: <- got reply
2024-06-26 12:29:34 ERROR: migration aborted (duration 00:00:02): no export formats for 'Storage:vm-9997-disk-2' - check storage plugin support!

TASK ERROR: migration aborted
 
I see. The TPM state drive is handled differently, because it is not directly managed by QEMU (but by the swtpm service) and therefore it is not live-migrated using QEMU's drive-mirror functionality, but via the storage plugin. That issue will be resolved once the RBD plugin supports offline export/import.
 
My two cents:
  • Running 2 Clusters on 7.4-18, identical hardware, storage ceph on both;
  • online migration works (as far as tested), offline migration gives "no export formats for 'Storage".
  • we are doing offline migration using a pipe: vzdump "$vmid" --compress 0 --mode stop --stdout |ssh "root@$targethost" -o StrictHostKeyChecking=no "qmrestore --storage rzcluster - $vmid"
  • Using proxmoxer python3 module, the same call to remote-migrate online that succeeds using pvesh fails:
  • ERROR: online migrate failure - failed to write forwarding command - Insecure dependency in unlink while running with -T switch at /usr/share/perl5/PVE/Tunnel.pm line 214, <GEN311> line 5.
Code: 
2024-08-09 04:41:04 remote: started tunnel worker 'UPID:pve-4-1-rz:xxx:qmtunnel:40516:root@pam!FULL_RIGHTS:'
tunnel: -> sending command "version" to remote
tunnel: <- got reply
2024-08-09 04:41:04 local WS tunnel version: 2
2024-08-09 04:41:04 remote WS tunnel version: 2
2024-08-09 04:41:04 minimum required WS tunnel version: 2
websocket tunnel started
2024-08-09 04:41:04 starting migration of VM 40516 to node 'pve-4-1-rz' (10.11.0.41)
tunnel: -> sending command "bwlimit" to remote
tunnel: <- got reply
2024-08-09 04:41:04 found local disk 'rzcluster:vm-40516-disk-0' (in current VM config)
2024-08-09 04:41:04 mapped: net0 from vmbr1 to vmbr1
2024-08-09 04:41:04 Allocating volume for drive 'scsi0' on remote storage 'rzcluster'..
tunnel: -> sending command "disk" to remote
tunnel: <- got reply
2024-08-09 04:41:04 volume 'rzcluster:vm-40516-disk-0' is 'rzcluster:vm-40516-disk-0' on the target
tunnel: -> sending command "config" to remote
tunnel: <- got reply
tunnel: -> sending command "start" to remote
tunnel: <- got reply
2024-08-09 04:41:05 Setting up tunnel for '/run/qemu-server/40516.migrate'
2024-08-09 04:41:05 ERROR: online migrate failure - failed to write forwarding command - Insecure dependency in unlink while running with -T switch at /usr/share/perl5/PVE/Tunnel.pm line 214, <GEN311> line 5.
2024-08-09 04:41:05 aborting phase 2 - cleanup resources
2024-08-09 04:41:05 migrate_cancel
tunnel: -> sending command "stop" to remote
tunnel: <- got reply
tunnel: -> sending command "quit" to remote
tunnel: <- got reply
2024-08-09 04:41:07 ERROR: migration finished with problems (duration 00:00:03)
TASK ERROR: migration problems
 
Last edited:
Hi,
SRU said:
My two cents:
  • Running 2 Clusters on 7.4-18, identical hardware, storage ceph on both;
  • online migration works (as far as tested), offline migration gives "no export formats for 'Storage".
  • we are doing offline migration using a pipe: vzdump "$vmid" --compress 0 --mode stop --stdout |ssh "root@$targethost" -o StrictHostKeyChecking=no "qmrestore --storage rzcluster - $vmid"
  • Using proxmoxer python3 module, the same call to remote-migrate online that succeeds using pvesh fails:
  • ERROR: online migrate failure - failed to write forwarding command - Insecure dependency in unlink while running with -T switch at /usr/share/perl5/PVE/Tunnel.pm line 214, <GEN311> line 5.
Code: 
2024-08-09 04:41:04 remote: started tunnel worker 'UPID:pve-4-1-rz:xxx:qmtunnel:40516:root@pam!FULL_RIGHTS:'
tunnel: -> sending command "version" to remote
tunnel: <- got reply
2024-08-09 04:41:04 local WS tunnel version: 2
2024-08-09 04:41:04 remote WS tunnel version: 2
2024-08-09 04:41:04 minimum required WS tunnel version: 2
websocket tunnel started
2024-08-09 04:41:04 starting migration of VM 40516 to node 'pve-4-1-rz' (10.11.0.41)
tunnel: -> sending command "bwlimit" to remote
tunnel: <- got reply
2024-08-09 04:41:04 found local disk 'rzcluster:vm-40516-disk-0' (in current VM config)
2024-08-09 04:41:04 mapped: net0 from vmbr1 to vmbr1
2024-08-09 04:41:04 Allocating volume for drive 'scsi0' on remote storage 'rzcluster'..
tunnel: -> sending command "disk" to remote
tunnel: <- got reply
2024-08-09 04:41:04 volume 'rzcluster:vm-40516-disk-0' is 'rzcluster:vm-40516-disk-0' on the target
tunnel: -> sending command "config" to remote
tunnel: <- got reply
tunnel: -> sending command "start" to remote
tunnel: <- got reply
2024-08-09 04:41:05 Setting up tunnel for '/run/qemu-server/40516.migrate'
2024-08-09 04:41:05 ERROR: online migrate failure - failed to write forwarding command - Insecure dependency in unlink while running with -T switch at /usr/share/perl5/PVE/Tunnel.pm line 214, <GEN311> line 5.
2024-08-09 04:41:05 aborting phase 2 - cleanup resources
2024-08-09 04:41:05 migrate_cancel
tunnel: -> sending command "stop" to remote
tunnel: <- got reply
tunnel: -> sending command "quit" to remote
tunnel: <- got reply
2024-08-09 04:41:07 ERROR: migration finished with problems (duration 00:00:03)
TASK ERROR: migration problems
Click to expand...
please share the VM configuration
Code: 
qm config 40516
and the migration commandline (if started via CLI) or parameters (if started via API).

PS: Please note that Proxmox VE 7 is end-of-life since the end of July: https://pve.proxmox.com/wiki/FAQ

EDIT: I could reproduce the issue now and will look into it. Thank you for the report!

EDIT 2: a fix has been proposed on the mailing list: https://lists.proxmox.com/pipermail/pve-devel/2024-August/065062.html
 
Last edited:
  • Like
Reactions: SRU
fiona said:
Hi,

please share the VM configuration
Code: 
qm config 40516
and the migration commandline (if started via CLI) or parameters (if started via API).

PS: Please note that Proxmox VE 7 is end-of-life since the end of July: https://pve.proxmox.com/wiki/FAQ

EDIT: I could reproduce the issue now and will look into it. Thank you for the report!

EDIT 2: a fix has been proposed on the mailing list: https://lists.proxmox.com/pipermail/pve-devel/2024-August/065062.html
Click to expand...
Thank you very much for the fast reaction and your efforts!
 
You must log in or register to reply here.

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Quick Navigation

Home Get Subscription Wiki Downloads Proxmox Customer Portal About

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!
Community platform by XenForo® © 2010-2024 XenForo Ltd.
Top Bottom
Back