Host-based backup of VMware vSphere VMs.
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y1008946
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Veeam Backup Copy Running Slow after interval expired

Post by y1008946 »

Hi, we have a backup copy job which had an interval time of 7 days (starting at 13:30), it was 3 and half days into the interval and we had some new backups we wanted to copy.

So at 9:00 we pressed on Sync now to copy the new backups to another location.

It was running great until 13:30 when Veeam decided that the copy interval had expired and the job restarted. I'm not sure why though we had changed the number of days and it hadn't got to 7 days since the last interval.

The backup copy job has 10 VMs in it and it had successfully copied the first two over quite quickly.

The log of the two VMs it copied show that it read 5-7% of the size of the disks.

- VM1 it read 30GB of a 430GB disk
- VM2 it read 25GB of a 500GB disk

But since the interval randomly expired, it has been going very slowly and reading more compared to the size of the disk.

- VM3 it read 100GB of a 280GB disk
- VM4 it read 26GB of a 40GB disk

Why is it going so slow, and is there anything I can do?

Thanks
y1008946
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Re: Veeam Backup Copy Running Slow after interval expired

Post by y1008946 »

The amount that it read for VM3 and VM4 is roughly about the same as the size of the vbk file.

I cant match the amount it read for VM1 and VM2 to anything.

Thanks
veremin
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Re: Veeam Backup Copy Running Slow after interval expired

Post by veremin »

Looks like something has gone wrong with re-uploading mechanism. You can either wait till this "long" copying cycle is finished and call support, if the subsequent runs are crawling as well, or open a ticket now. Thanks.
y1008946
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[MERGED] : Backup Copy Failing after retries

Post by y1008946 »

Hi, a backup copy job was taking longer than usual and the interval expired before it completed.

The VM it was processing was 90% complete.

After the interval expired it processed the VM again, taking alot longer to process it.

In the next 24 hours the job has failed 3 times, with each time it failing at the point where the interval expired.

The error messages which appear when the job fails at 90% are:

Wan connection failed to get trg backup corrupted segments.
Failed to validate target backup.
Sync task failed to process disk.

What should I do?

Many thanks
veremin
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Re: Veeam Backup Copy Running Slow after interval expired

Post by veremin »

Kindly, avoid creating multiple topics regarding same issue. Have you already contacted support team, as I've recommended above? Thanks.
y1008946
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Re: Veeam Backup Copy Running Slow after interval expired

Post by y1008946 »

Hi, thanks for your reply.

This is a new issue, but no problem to merge the two together.

Support suggested that the speed was normal, and on another re-run of the job it was the same.

The backup copy job I posted about failed at 90% when the interval expired, and subsequent reruns have failed that the same point the interval expired

The reason for posting in the forum is that it is the weekend, and I thought I may be able to get some help from the forum.
y1008946
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Re: Veeam Backup Copy Running Slow after interval expired

Post by y1008946 »

Hi, I've tried a few things and the job has now finished successfully. I'm not sure which cured the problem or if it just corrected itself on the 4th try, but these are the things I did.

- Removed the backups imported on the target server
- Resynced the repository on the target server
- Restarted the WAN Accelerator service on the target server
- Ran the backup copy job again

Thanks
veremin
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Re: Veeam Backup Copy Running Slow after interval expired

Post by veremin »

I'm also not sure what might be the cause of experienced problem. My wild guess was that something broke re-uploading mechanism, leading either to longer than usual copying cycle or complete failure.

Anyway, let's observe a job for a little while, and re-open a case in case the issue persists.

Thanks.
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