NAZ1000
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Fix Running HyperV which will not backup or create checkpoints - disk not found
A Windows 2016 HyperV VM had grown with multiple AVHDX files - took a copy of the whole VM folder and then reluctantly merged the files as have had issues before with VHDX files not being found subsequently.
The merges completed - VM still running fine - disk space reclaimed. Now when I try to backup using VEEAM complains cannot find the disk. Creating checkpoint also complains not found. Tried Win Server Backup complains EFI Specified disk cannot be found. So Im pretty sure if this VM has to reboot it wont boot !
Is there anything I can do to fix this in the running VM without resorting to the backups (VEEAM and Windows Fwhich will hopefully work but result in downtime / some live data loss)
Thank you !
The merges completed - VM still running fine - disk space reclaimed. Now when I try to backup using VEEAM complains cannot find the disk. Creating checkpoint also complains not found. Tried Win Server Backup complains EFI Specified disk cannot be found. So Im pretty sure if this VM has to reboot it wont boot !
Is there anything I can do to fix this in the running VM without resorting to the backups (VEEAM and Windows Fwhich will hopefully work but result in downtime / some live data loss)
Thank you !
ASKER
Thank you
1. Tried this - Veeam complains about a missing disk
2. HyperV creates the folder where I try exported - but its blank
3. This runs ok and reports the following - seems OK but the fact that windows server backup complains no EFI partition found im pretty sure it wont boot on restart but its running fine -
PS C:\Users\Administrator> Get-VMsnapshot –VMname 2016
VMName Name SnapshotType CreationTime ParentSnapshotName
------ ---- ------------ ------------ ------------------
2016 2016 - (11/08/2020 - 12:17:16) Standard 11/08/2020 12:17:21
2016 2016 - (06/04/2021 - 18:43:06) Standard 06/04/2021 18:43:14 2016 - (11/08/2020 - 12:17:16)
2016 2016 - (08/04/2021 - 19:11:59) Standard 08/04/2021 19:12:04 2016 - (06/04/2021 - 18:43:06)
2016 2016 - (24/04/2021 - 10:08:57) Standard 24/04/2021 10:09:03 2016 - (08/04/2021 - 19:11:59)
I copied all the VM folders to a NAS before the merge - can I use these in worst case to recreate VM - its not a backup - just a copy and paste ?
1. Tried this - Veeam complains about a missing disk
2. HyperV creates the folder where I try exported - but its blank
3. This runs ok and reports the following - seems OK but the fact that windows server backup complains no EFI partition found im pretty sure it wont boot on restart but its running fine -
PS C:\Users\Administrator> Get-VMsnapshot –VMname 2016
VMName Name SnapshotType CreationTime ParentSnapshotName
------ ---- ------------ ------------ ------------------
2016 2016 - (11/08/2020 - 12:17:16) Standard 11/08/2020 12:17:21
2016 2016 - (06/04/2021 - 18:43:06) Standard 06/04/2021 18:43:14 2016 - (11/08/2020 - 12:17:16)
2016 2016 - (08/04/2021 - 19:11:59) Standard 08/04/2021 19:12:04 2016 - (06/04/2021 - 18:43:06)
2016 2016 - (24/04/2021 - 10:08:57) Standard 24/04/2021 10:09:03 2016 - (08/04/2021 - 19:11:59)
I copied all the VM folders to a NAS before the merge - can I use these in worst case to recreate VM - its not a backup - just a copy and paste ?
ASKER CERTIFIED SOLUTION
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1. In Veeam try creating a NEW backup job, select just that VM and back it up. Does it work?
2. Using Hyper-V Manager are you able to export the VM to make a copy of it?
3. Using PowerShell from the Hyper-V host, if you run Get-VMsnapshot –VMname MYSERVER does it give any helpful info?