Linux Machine Freezing During Backup

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Linux Machine Freezing During Backup

Veeam Logoby Javezim » Fri Nov 13, 2015 1:45 am

Hey Team,

We are needing to backup some Production Hyper-V Virtual Machines running Ubuntu 14.04.
The machines accept incoming connections so we really need it to be up and usable 24/7.
The problem we are finding is that Veeam Backups are freezing the Linux Machines each time the backup runs.

We've attempted to use the Hyper-V Quiescence with Crash Consistant Backup which we believe was meant to keep the VM Running throughout the backup but it still freezes it up.
Was wondering if anyone knew of a way to keep a Linux VM Active during the backing up process.
Any help would be greatly appreciated :)

- Ryan
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Re: Linux Machine Freezing During Backup

Veeam Logoby alanbolte » Fri Nov 13, 2015 3:00 pm

Which Windows OS is the host running?

If 2012R2, have you installed the appropriate daemons? See https://technet.microsoft.com/en-us/lib ... 31029.aspx

Can you tell whether the Hyper-V host is explicitly putting the VMs into a saved state?
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Re: Linux Machine Freezing During Backup

Veeam Logoby Javezim » Fri Nov 13, 2015 11:49 pm

Hey Alan,

Windows 2012 Standard (Not R2)
I'll give that a look over.

Now will these Daemons prevent the Virtual machine from Freezing during the Backing up?
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Re: Linux Machine Freezing During Backup

Veeam Logoby alanbolte » Sat Nov 14, 2015 4:37 am

Ryan,

Per that matrix, 'Online' (application and filesystem-consistent) backup via integration tools is only supported on your Linux OS in 2012R2. Considering notes 3 and 13, I'm not sure how useful it would be to you anyway.

You should still be able to obtain crash-consistent backup, which is why I'm asking whether the VMs are put into saved state by Server 2012, or if they just stop responding for a time due to the resource load of the backup. Either way, please post your support case number.
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Re: Linux Machine Freezing During Backup

Veeam Logoby Javezim » Sun Nov 15, 2015 12:09 am

I believe they just stop responding for a time due to resource load of the backup.
Any way around that?
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Re: Linux Machine Freezing During Backup

Veeam Logoby alanbolte » Mon Nov 16, 2015 4:17 pm

Depending on the exact issue, you may just need to throttle the backup / alter scheduling, or it may be a complex infrastructural issue with no easy answer, requiring assistance from your hardware vendor(s). Please contact technical support for assistance in isolating the issue.
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