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rvlsolution
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Replication Performance

Post by rvlsolution » Nov 12, 2018 12:00 pm

Hello,

we recently start to use Veeam B&R for the backups of our datacenter.

For the backups everything is OK, but we are experiencing some poor performance during a replication job. I try to explain :

The job starts and build the VM list regularly but instead of starting processing the VMs, it wait some minutes for every VM before start transfer data. Once the data transfer is started then is very fast. Here an example for our Exchange VM :

Code: Select all

Queued for processing at 12/11/2018 12:23:00 	
Required backup infrastructure resources have been assigned 	
VM processing started at 12/11/2018 12:23:05 	
VM size: 300,0 GB 	
Discovering replica VM 	00:00
Getting VM info from vSphere 	00:05
Using guest interaction proxy RVL-VEEAM.RVLSOLUTION.local (Same subnet) 	
Inventorying guest system 	00:01
Preparing guest for hot backup 	00:05
Releasing guest 	00:00
Creating VM snapshot 	
Getting list of guest file system local users 	
Preparing replica VM 	00:04
Processing configuration 	00:38
Failed to set storage profile Default to disk [RVL-EXCHANGE_replica:2000] 	
Failed to set storage profile Default to disk [RVL-EXCHANGE_replica:2001] 	
Creating helper snapshot 	00:04
Using source proxy VMware Backup Proxy for disk Hard disk 1 [hotadd] 	00:23
Using source proxy VMware Backup Proxy for disk Hard disk 2 [hotadd] 	00:51
Using target proxy VMware Backup Proxy for disk Hard disk 1 [hotadd] 	
Using target proxy VMware Backup Proxy for disk Hard disk 2 [hotadd] 	
Hard disk 1 (100,0 GB) 384,0 MB read at 319 MB/s [CBT]	00:26
Hard disk 2 (200,0 GB) 2,0 GB read at 113 MB/s [CBT]	00:25
Truncating Exchange transaction logs 	00:01
Removing VM snapshot 	03:40
Deleting helper snapshot 	02:04
Swap file blocks skipped: 350,0 MB 	
Deleted file blocks skipped: 2,0 MB 	
Finalizing 	00:00
Busy: Source 53% > Proxy 62% > Network 82% > Target 62% 	
Primary bottleneck: Network 	
Network traffic verification detected no corrupted blocks 	
Processing finished at 12/11/2018 12:44:21 	
I noticed that the job take a lot of time when arrived at : Getting list of guest file system local users


Let me know if you need other details.

Thanks in advance.

Tommaso

Andreas Neufert
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Re: Replication Performance

Post by Andreas Neufert » Nov 12, 2018 1:01 pm

Is it vSphere 6.7 with Backup & Replication v9.5 Update 3a ?

rvlsolution
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Re: Replication Performance

Post by rvlsolution » Nov 14, 2018 7:02 am

No, is Vsphere 5.5

Veeam is at the latest version.

Andreas Neufert
Veeam Software
Posts: 3820
Liked: 687 times
Joined: May 04, 2011 8:36 am
Full Name: Andreas Neufert
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Re: Replication Performance

Post by Andreas Neufert » Nov 14, 2018 9:27 am

Maybe same issue. Can you please open a support ticket. Potentially there is a patch for this already. At least support can analyse the logs and can figure out the root cause.

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