Snapshot 2TB larger disk

[LLevon]

When I try to take a snapshot with a larger disk of 2tb it takes a long time hangs and does not take the snapshot and this message appears

VM 175 qmp command 'savevm-end' failed - unable to connect to VM 175 qmp socket - timeout after 5985 retries
snapshot create failed: starting cleanup
TASK ERROR: VM 175 qmp command 'blockdev-snapshot-internal-sync' failed - got timeout

 

[fiona]

Hi,
what kind of underlying storage do you have? The timeout is currently 10 minutes. The fact that the VM will be blocked during the time it takes to snapshot the disk can't be easily changed.

 

[LLevon]

Hi,
what kind of underlying storage do you have? The timeout is currently 10 minutes. The fact that the VM will be blocked during the time it takes to snapshot the disk can't be easily changed.

Hi,

My type of disc is VirtIO Block, My data is fictitious as test occupying 2tb

 

[fiona]

My type of disc is VirtIO Block, My data is fictitious as test occupying 2tb

But where is the disk located? Is it a qcow2 disk on a network share, a local raw file, ZFS volume, or something else?

 

[LLevon]

But where is the disk located? Is it a qcow2 disk on a network share, a local raw file, ZFS volume, or something else?

NFS network storage on a 10GB network with SSD disks

 

[fiona]

Is it actual fake data or is the disk mostly empty? Can you share the output of qm config <ID> --current and of pveversion -v? While the VM is down, how log does running

time qemu-img snapshot -c newsnap /path/to/your/image/vm-<ID>-disk-<N>.qcow2

take?
You can remove the snapshot again with

qemu-img snapshot -d newsnap /path/to/your/image/vm-<ID>-disk-<N>.qcow2

.