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mb1811
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Best Practice Network Scheme

Post by mb1811 » Jul 11, 2019 10:09 am

Hi Forum!

I got a question regarding to our new planned network scheme:

Code: Select all

LAN - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- LAN
|											|
| 10G											| 10G
| Tagged Uplink for									| Tagged Uplink for
| Hyper-V Guests									| Hyper-V Guests
|											|
Hyper-V 2019 #1 - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - -Hyper-V 2019 #2
|					10G Link 10.0.0.0/30 for			|
|					Hyper-V Replica					|
| 10G											| 10G		
| 10.0.1.0/30										| 10.0.2.0/30
| Veeam											| Veeam
|											|
- - - - - - - - -- - - - - - - - - Veeam Server - - - - - - - - - - - - - - - - - - - - 
						|
						|
						|
 				NAS for long term backup
We want to use 10.0.1.0/30 and 10.0.2.0/30 for highspeed backups without polling that traffic to our LAN.

We also want to use Veeam Replica between Hyper-V #1 and #2.
But wich way would the Replica traffic choose?
10.0.0.0/30 or via the Veeam Server?

Thanks in advance!
Matt

Vitaliy S.
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Re: Best Practice Network Scheme

Post by Vitaliy S. » Jul 11, 2019 5:57 pm

Hi Matt,

Selection of networks happens automatically based on availability. Additionally, you can instruct Veeam B&R server what to select by configuring the Preferred Network list settings.

Thanks!

mb1811
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Re: Best Practice Network Scheme

Post by mb1811 » Jul 12, 2019 6:44 am

Thanks Vitaly!

If I got this right, I tell my Veeam Server this three preferred networks:

10.0.0.0/30
10.0.1.0/30
10.0.2.0/30

Veeam will choose 10.0.0.0/30 for replica as this is the link with less hops.
10.0.1.0/30 and 10.0.2.0/30 will be chosen for regular backups.

Vitaliy S.
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Re: Best Practice Network Scheme

Post by Vitaliy S. » Jul 12, 2019 11:03 am

Veeam server will always be trying to select the preferred network regardless of the job type. Here is a similar topic for more info. If your backup repository is a NAS device, then you can configure a getaway server to run Veeam data movers and route the traffic over the correct network. Hope this helps!

mb1811
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Re: Best Practice Network Scheme

Post by mb1811 » Aug 13, 2019 10:00 am

Hi Forum!

After some issues with Windows 2019 we went back to 2012R2 to keep this company running..

Now I'm goingt to config our replicas. As mentioned I want Veeam to use 10.0.0.0/30 for replica traffic.

When configuring that job I just can select source: 10.0.1.1/30 and destination: 10.0.2.1/30
I also set the preferred networks as mentioned above.

When running that job this error occurs: Failed to process replication task Error: Failed to connect to the port [10.0.2.1:2500]

But Veeam should connect to 10.0.0.2/30 - seems to me that Veeam cant see that interlink between those two hyper-v servers?

Any ideas?


Thanks

HannesK
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Re: Best Practice Network Scheme

Post by HannesK » Aug 13, 2019 11:38 am

Hello,
correct. The on-host proxy does not know about the second IP (direct route).

There seems to be no router involved. That's why there is no connection for replica.

Best regards,
Hannes

mb1811
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Re: Best Practice Network Scheme

Post by mb1811 » Aug 13, 2019 11:43 am

Thanks Hannes,

I figured out to create extra off-hosts maschines on those 2 hyper-v server additionally.

Seems to work!

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