VSS timeout with Exchange 2010

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Re: VSS timeout with Exchange 2010

Veeam Logoby Gostev » Fri May 27, 2011 10:12 am

1-0-1 wrote:Just out of interest sake - if I select Microsoft VSS option in my backup job (put a check mark next to 'Enable application image-aware processing') is it safe to assume I can disable/uncheck the 'Enable VMWARE tools quiescene'?

VMware Tools quiescence is automatically disabled if application image-aware processing is enabled. Basically, the state of this checkbox is ignored in that case.
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Re: VSS timeout with Exchange 2010

Veeam Logoby larry » Fri May 27, 2011 12:10 pm

I had this issue (exchange 2010/ Win 2008R2) but by starting the job when the esx and veeam is not backing up anything else, and no big jobs running on the esx host , it has been 10 days without the error. When it was failing was when I start a lot of replication,cloning and backups, right before this there were a few large SQL copies taking place.
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Re: VSS timeout with Exchange 2010

Veeam Logoby Gostev » Fri May 27, 2011 1:10 pm

This make sense, since Exchange freeze is quite I/O consuming process... so if backend storage is quite busy, Exchange may not have enough time to complete the process within the designated VSS timeout.
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Re: VSS timeout with Exchange 2010

Veeam Logoby 1-0-1 » Fri May 27, 2011 3:17 pm

That is does makes sense and I moved the Exchange server to a datastore with only two other virtual servers (two domain controllers) and made sure there are no other jobs running and it still times out. Could it be that 1.4TB is too much too handle at once? The disks being used are 15k SAS drives by the way so storage performance should not be a problem.
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Re: VSS timeout with Exchange 2010

Veeam Logoby Gostev » Fri May 27, 2011 4:06 pm

That's right, but keep in mind that your issue may be different as well. You may want to open a support case with Microsoft and have them troubleshoot what makes VSS freeze last so long on your Exchange. Keep in mind that Exchange VSS Writer and whole VSS framework is all proprietary Microsoft code, so if something does not work well there, they are in better position than us to troubleshoot the issue.
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Re: VSS timeout with Exchange 2010

Veeam Logoby sampol » Mon Jun 06, 2011 1:25 pm

We have the same problem. Windows 2008R2, Exchange 2010 SP1 (R3). No symantec product installed.
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Re: VSS timeout with Exchange 2010

Veeam Logoby Gostev » Mon Jun 06, 2011 7:08 pm

Please read my previous post.
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Re: VSS timeout with Exchange 2010

Veeam Logoby newpylong » Thu Jun 30, 2011 12:48 pm

Unfortunately, to your end users, the "we don't have access to source code, it's not our product, etc" does not hold any ground. If you are relying on a technology in your product, even if it isn't yours, you need to support it until you get to a point where you have exhausted all internal resources and need to leverage Microsoft. You do realize that is like calling Dell and having them tell you to call Microsoft for any Windows problems right?

Veeam should have adequate engineers who are trained on Windows Server, and thus VSS to be able to assist troubleshooting issues like this since a big marketing point to your product is based around replacing file level backups.

I know we didn't shell out $20,000 to be told to call Microsoft because our Veeam Exchange backups are failing...
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Re: VSS timeout with Exchange 2010

Veeam Logoby Gostev » Thu Jun 30, 2011 12:58 pm

newpylong wrote: on a technology in your product, even if it isn't yours, you need to support it until you get to a point where you have exhausted all internal resources and need to leverage Microsoft

And that's exactly the point where we were at when I said that. Point where further troubleshooting required to have our developers looking at Exchange VSS Writer source code, that we do not have access to. Which is why it was suggested to open a case with Microsoft support directly. Thanks.
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VSS writer failed NTDS

Veeam Logoby Wil » Tue Aug 16, 2011 5:42 pm

[merged]

Hello,
Has anyone had the error message below?

Freezing guest operating system
Unfreeze error: [Backup job failed.
Cannot create a shadow copy of the volumes containing writer's data.
A VSS critical writer has failed. Writer name: [NTDS]. Class ID: [{b2014c9e-8711-4c5c-a5a9-3cf384484757}]. Instance ID: [{670ad215-83ce-4c5f-8987-d727cfc4d466}]. Writer's state: [VSS_WS_FAILED_AT_POST_SNAPSHOT]. Error code: [0x800423f4].]

I've been trying to find a solution online but, no luck.
Thanks,
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Re: VSS writer failed NTDS

Veeam Logoby Wil » Tue Aug 16, 2011 6:08 pm

I was able to fix the issue by restarting the COM+ Event System service. A window will pop up letting you know that it will restart that service and others.
I retried the backup job and it was successful. Let's see how it goes tomorrow when it runs again.
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Re: VSS timeout with Exchange 2010

Veeam Logoby cliffm » Sat Aug 20, 2011 1:17 am

Similar to many posts here I have been unable to get VSS stable with Veeam backup on a SBS 2008 for over a month now. Exchange writers fail and various other writers get stuck. Support has not been able to fix this and also suggested this is a Microsoft problem. Eventually I worked out this has nothing to do with Microsoft. If I run Veeam backup against the same SBS VM on a network that does not have a VC, the jobs ALL succeed immediately. So I tried turning the VC on and off on my production network: VC ON and jobs fail, VC OFF (shut down) and the exact same jobs succeed with NO changes made to the SBS abd no SBS reboots. I have reliably produced this behaviour over and over. Since I have a small environment I can live without a VC. I suspect this has something to do with the SBS being on a 4.1 host as this did not occur when the same VM lived on a 4.0 host. I don't have the time or resources to test all the different variations of this but support tell me they have now replicated this behaviour in a lab. In the meantime until there is a fix, I can live without the VC.
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Re: VSS timeout with Exchange 2010

Veeam Logoby Vitaliy S. » Sun Aug 21, 2011 4:55 pm

Hello Cliff, could you please tell me your ticket number?
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Re: VSS timeout with Exchange 2010

Veeam Logoby cliffm » Sun Aug 21, 2011 9:02 pm

The ticket is 5135996. This has now been closed. The VC is turned off and the Veeam backup product has been working as advertised for a week now so at this stage there is no way I am turning the VC on again.
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Re: VSS timeout with Exchange 2010

Veeam Logoby J1mbo » Mon Aug 22, 2011 9:17 am

VC is?
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