backup VM with OS FreeBSD

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Hi, we are backing a VM with FreeBSD and getting following warning:

Activity 'Creating application-consistent (VSS) snapshot' succeeded with the following warning: 'An error occurred while saving the snapshot: Failed to quiesce the virtual machine.
An error occurred while taking a snapshot: Failed to quiesce the virtual machine.

When I tried to "recover files/folders", there was no file/folder listed in any backup of this VM. When I "Run as VM", it booted up and I was able to see the files inside the OS. However, I got following warning from Acronis

Warning

Failed to set a bootable disk for virtual machine 'cdns-01.mgmt.comwave_temp'.

Operating systems are not found.

Can I trust these backup? OR any suggestion?

Thanks,

Aldous

Tue, 09/11/2018 - 16:16
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FreeBSD and its filesystems are not supported, so it was backed up sector-by-sector. So Acronis Backup can't access  files inside backup, and bootability fix during 'Run as VM' operation could not be performed.

Wed, 09/12/2018 - 09:09
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Hi Aldous,

The first message is related to VMware failure to create quiesced snapshot for this VM. In these cases Acronis Backup 12.5 automatically fails over to calling VMware non-quiesced snapshot and puts a warning into the log file. To avoid the warning you can disable "Volume Shadow Copy for Virtual Machines" option in the backup plan - it will enforce non-quiesced snapshot create. This will result in capturing the system in crash-consistent state inside the backup (as if it was forcibly powered off). Still in most cases these backups are good and can be used for recovery - as long as the guest OS can sustain accident reboots (which is not a problem for most modern OSes anyways).

Files/folders recovery from this backup doesn't work because likely there is a specific file system inside the guest OS (FreeBSD) which cannot be parsed normally - hence the proper way to recover files is to mount the VM from this backup ("Run VM").

The second message is about detecting operating system inside the backup - the message is thrown because it's FreeBSD (Unix-like) machine and this OS family is not supported for detection. Therefore recovery ("Run VM") is performed "as is".

Thank you.

Wed, 09/12/2018 - 09:13
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