ChannelError:ConnectionReset

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ChannelError:ConnectionReset

Veeam Logoby 0zzY » Thu Jul 23, 2015 7:21 am 1 person likes this post

Hi, i have open case 00973559.

The backup log report this: Hot add is not supported for source disk, failing over to network mode. After that i receive the error: ChannelError:ConnectionReset.
On second or third retry the job finish succesfully (using hot add).
This happen for 3-4 vm in different jobs.
We are working on vmware 5.5 and veeam 8.0.0.2030

How can i fix it?
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Re: ChannelError:ConnectionReset

Veeam Logoby Vitaliy S. » Thu Jul 23, 2015 10:05 am

What type of disks do you use for VMs you're backing up with hotadd backup mode?
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Re: ChannelError:ConnectionReset

Veeam Logoby 0zzY » Thu Jul 23, 2015 10:39 am

Hi Vitaliy, disks are all scsi
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Re: ChannelError:ConnectionReset

Veeam Logoby Vitaliy S. » Thu Jul 23, 2015 11:58 am

If all requirements are met for virtual disks, then let's wait till our support team looks through the log files.
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Re: ChannelError:ConnectionReset

Veeam Logoby 0zzY » Thu Jul 23, 2015 5:43 pm

Hi Vitaliy, all requirements are ok, also becouse backup successfully finish on second or third attempt using hotadd
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Re: ChannelError:ConnectionReset

Veeam Logoby Vitaliy S. » Sun Jul 26, 2015 7:58 pm

Is there anything in common for the VMs that fail to be processed in hotadd mode?
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Re: ChannelError:ConnectionReset

Veeam Logoby 0zzY » Mon Jul 27, 2015 9:00 am

I think they are build from the same template.
Another problem (i don't know if it's related to the previous) sometimes one job hang on 99% and all next jobs that are in queue are waiting
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Re: ChannelError:ConnectionReset

Veeam Logoby Vitaliy S. » Mon Jul 27, 2015 11:03 am

Do you have any other VMs to try the hotadd backup mode? Also let's wait for our support team to investigate this problem via log files.
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Re: ChannelError:ConnectionReset

Veeam Logoby emachabert » Mon Jul 27, 2015 9:42 pm

last time I saw this type of error it was caused by the vcenter reaching it's conncetion limits.
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Re: ChannelError:ConnectionReset

Veeam Logoby 0zzY » Tue Jul 28, 2015 4:01 pm

Vitaliy S. wrote:Do you have any other VMs to try the hotadd backup mode? Also let's wait for our support team to investigate this problem via log files.


hi vitaliy, yes we have other vm and hot add works fine.
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Re: ChannelError:ConnectionReset

Veeam Logoby 0zzY » Tue Jul 28, 2015 4:04 pm

emachabert wrote:last time I saw this type of error it was caused by the vcenter reaching it's conncetion limits.

what connection limits are you talking about? is it possible to see something about this limit? network graph?
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Re: ChannelError:ConnectionReset

Veeam Logoby Vitaliy S. » Tue Jul 28, 2015 9:01 pm

Since other VMs are backed up without issues then connection limits shouldn't be the case here. What did our support engineer say after reviewing the debug logs?
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Re: ChannelError:ConnectionReset

Veeam Logoby jbarrow.viracoribt » Thu Aug 13, 2015 7:14 pm

I'm having this same issue and really getting no good solutions from tech support. It only happens when parallel processing is turned on. Case number 00968559 .
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Re: ChannelError:ConnectionReset

Veeam Logoby v.Eremin » Fri Aug 14, 2015 8:34 am

If you're not satisfied with the level of support provided, you can always escalate your case in order for it to be handled by higher tier support engineer. Thanks.
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Re: ChannelError:ConnectionReset

Veeam Logoby 0zzY » Sat Aug 15, 2015 8:03 am

Vitaliy S. wrote:Since other VMs are backed up without issues then connection limits shouldn't be the case here. What did our support engineer say after reviewing the debug logs?


Hi Vitaliy, some days ago i closed the case becouse thought it was solved but i was wrong, so i have opened a new case id 00987387

To be honest not all other vms are backed up successfully and what really happen is the following:

My customer has 2 errors during every backup:
1 - ChannelError:ConnectionReset (we have this error for some backup job but often the backup job end successfully on next retry, but i'd like to know why this happen)
2 - Every night one backup job hang on 99% or 47% (the same vm is always involved, only this night for another one) -> if i look at backup server with vsphere client i can see one disk is "hot-addedd" more than one time, other times the job can't work in hot-add and it switch to newtork mode.
In any event it hangs and i can't stop it, i have to kill all veeamagent process from task manager, so disc consolidation can start automatically and after that rebot backup server.

How can i escalate my case to be handled by higher tier support? It's going on from many days and we need a solution faster
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