efa-project.org

Hi guys.
Using Veeam Backup and replication 9.5 for doing backups.
EFA 3.0.1.7 is on hyperv host.
We are unable to backup EFA VM because it throws an "unlogic error"

1/15/2017 3:19:47 AM :: Unable to allocate processing resources. Error: Writer 'Microsoft Hyper-V VSS Writer' is failed at 'VSS_WS_FAILED_AT_PREPARE_SNAPSHOT'.
The writer experienced a non-transient error. If the backup process is retried,
the error is likely to reoccur.
--tr:Failed to verify writers state.
--tr:Failed to perform pre-backup tasks.

If we run vssadmin list writers on hyperv host we see that Microsoft Hyperv-V VSS Writer is in non-retryable error state. If we restart hyperv management service then this error disappears for awhile, until we dont trigger backup of efa again.

I think its an EFA VM issue, any hints for solving this?

yum info hypervkvpd on efa throws:

Available Packages
Name : hypervkvpd
Arch : x86_64
Version : 0
Release : 0.17.20150108git.el6
Size : 17 k
Repo : base
Summary : HyperV key value pair (KVP) daemon
URL : http://www.kernel.org
License : GPLv2
Description : Hypervkvpd is an implementation of HyperV key value pair (KVP)
: functionality for Linux. The daemon first registers with the
: kernel driver. After this is done it collects information
: requested by Windows Host about the Linux Guest. It also supports
: IP injection functionality on the Guest.

Sounds like you try to make a backup with application-aware processing.
Check to see of the option application-aware processing is unticked and rerun the backup again.

zwabber thank you for your reply.
Excuse me for my lack of knowledge but where exactly would that option be?
I can't find it.
is it related to this option:

It's a option in Veeam B&R
Edit the backup job and go to Guest Processing;

Thanks.
But I can not find that option anywhere in Veeam B&R because we are using the free edition.
I think I had to fix that in my powershell script with wich I run the backup Jobs

# Quiesce VM when taking snapshot (Optional; VMware Tools are required; Possible values: $True/$False)
$EnableQuiescence = $True

I had to put $EnableQuiescence from True to False.
After doing that, backup with the scrip works