Hyper-V Network card setup?
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@jaredbusch said in Hyper-V Network card setup?:
So again, you are adding complications and restrictions without a good business need.
They aren't complications. They are considerations, to be decided by HIM, for HIS OWN ENVIRONMENT.
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@tim_g said in Hyper-V Network card setup?:
@jaredbusch said in Hyper-V Network card setup?:
Your replication and backup processes for this size will almost never be pegging the bandwidth from your 4 NIC team. This means no impact to your users.
AGAIN, it depends. Is his 4-NIC team though the Switch or is it switch independant? If switch independant, then you only get 1gbps... so then yes, it will impact users... very easily. Even many VMs replicating.
Not true. Because you get 1GB per connection. Replication uses multiple connections.
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@jaredbusch said in Hyper-V Network card setup?:
@tim_g said in Hyper-V Network card setup?:
@jaredbusch said in Hyper-V Network card setup?:
Multi-site does not mean you need multiple subnets within each site, which is the point I am making.
True, and it also doesn't mean you need a single subnet either.
It does without a valid business need to justify the expense and complication of adding it.
Yes the expense is relatively small, but often, the complication down the road is not.And who TF are you to say what his or my business needs may or may not be? You have no idea.
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@tim_g said in Hyper-V Network card setup?:
@jaredbusch said in Hyper-V Network card setup?:
@tim_g said in Hyper-V Network card setup?:
@jaredbusch said in Hyper-V Network card setup?:
Multi-site does not mean you need multiple subnets within each site, which is the point I am making.
True, and it also doesn't mean you need a single subnet either.
It does without a valid business need to justify the expense and complication of adding it.
Yes the expense is relatively small, but often, the complication down the road is not.And who TF are you to say what his or my business needs may or may not be? You have no idea.
The guy that has had to come in behind the idiots that have no idea what they are doing and fix shit.
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@jaredbusch said in Hyper-V Network card setup?:
@tim_g said in Hyper-V Network card setup?:
@jaredbusch said in Hyper-V Network card setup?:
Your replication and backup processes for this size will almost never be pegging the bandwidth from your 4 NIC team. This means no impact to your users.
AGAIN, it depends. Is his 4-NIC team though the Switch or is it switch independant? If switch independant, then you only get 1gbps... so then yes, it will impact users... very easily. Even many VMs replicating.
Not true. Because you get 1GB per connection. Replication uses multiple connections.
That's not really what I meant or wanted to say. It still depends.
If he's on a single subnet for the entire SMB like you suggest, and backups are running, replication is happening, users are accessing file servers, people on internet, phones/devices on wireless network (on same single-subnet you like to have)... times 500 people across a site or two....
...then it doesn't matter how many NICs you have in a team. That subnet is busy.
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@tim_g said in Hyper-V Network card setup?:
@jaredbusch said in Hyper-V Network card setup?:
@tim_g said in Hyper-V Network card setup?:
@jaredbusch said in Hyper-V Network card setup?:
Your replication and backup processes for this size will almost never be pegging the bandwidth from your 4 NIC team. This means no impact to your users.
AGAIN, it depends. Is his 4-NIC team though the Switch or is it switch independant? If switch independant, then you only get 1gbps... so then yes, it will impact users... very easily. Even many VMs replicating.
Not true. Because you get 1GB per connection. Replication uses multiple connections.
That's not really what I meant or wanted to say. It still depends.
If he's on a single subnet for the entire SMB like you suggest, and backups are running, replication is happening, users are accessing file servers, people on internet, phones/devices on wireless network (on same single-subnet you like to have)... times 500 people across a site or two....
...then it doesn't matter how many NICs you have in a team. That subnet is busy.
But the only switch that is even slightly busy is the single switch with the NIC teams for the servers.
I will totally grant you that I am assuming that @dave247 has a well designed network and would not be passing replication across a 1GB uplink between switches.
Edit: I assume based on his post of 25 servers that a propper switching backplane is in place.
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@jaredbusch said in Hyper-V Network card setup?:
@tim_g said in Hyper-V Network card setup?:
@jaredbusch said in Hyper-V Network card setup?:
@tim_g said in Hyper-V Network card setup?:
@jaredbusch said in Hyper-V Network card setup?:
Your replication and backup processes for this size will almost never be pegging the bandwidth from your 4 NIC team. This means no impact to your users.
AGAIN, it depends. Is his 4-NIC team though the Switch or is it switch independant? If switch independant, then you only get 1gbps... so then yes, it will impact users... very easily. Even many VMs replicating.
Not true. Because you get 1GB per connection. Replication uses multiple connections.
That's not really what I meant or wanted to say. It still depends.
If he's on a single subnet for the entire SMB like you suggest, and backups are running, replication is happening, users are accessing file servers, people on internet, phones/devices on wireless network (on same single-subnet you like to have)... times 500 people across a site or two....
...then it doesn't matter how many NICs you have in a team. That subnet is busy.
But the only switch that is even slightly busy is the single switch with the NIC teams for the servers.
I will totally grant you that I am assuming that @dave247 has a well designed network and would not be passing replication across a 1GB uplink between switches.
Edit: I assume based on his post of 25 servers that a propper switching backplane is in place.
I don't know anything about his environment, didn't see the 25 server thing, and seen nothing about his network setup. I'm speaking from knowing zero about his environment.
No teaming is needed if it's not needed. Only network test results can tell you that.
He asked for best practices, which should usually apply unless they dont' make sense for an environment.
It's a well-known and well-documented best practice to leave a single dedicated management port/NIC for your Hypervisor, and use the remaining ports as needed.
At least one NIC to use as a virtual switch for Hyper-V VMs. It's up to the individual to decide whether or not teaming is needed, and how many to use in the team.
We don't know what all of his needs are. If he teams all 4 NICs, then there's nothign left for anythign else, like a DMZ connection or iSCSI connection to a SAN or something on a private network. Only he knows that stuff. Maybe he can team all 4 and be done with it.
What I told him:
@tim_g said in Hyper-V Network card setup?:
NIC1 = Management, replication, migration
NIC2 & NIC3 = Teamed - Not shared with the "management OS" (uncheck that box in Hyper-V later after team is set up)
NIC4 = Other testing as you see fit (iSCSI, DMZ, different subnet/network, failover for another network, etc)I was under the impression he was testing things in a lab, playign with Hyper-V and different scenarios. That's a great setup for what I thought was his use-case. That gives him a lot of play and flexibility for testing a lot of things.
There's nothign wrong with that setup at all. It also follows general guidelines and best practices.
It goes without saying, that should that not fit for his environment, to adjust as needed. If what's needed is a 4-port TEAM and he doen'st want to do anythign else in his testing, then great.
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Run dpack and see what your current workload is like in terms of bandwidth. Unless you are using the network like crazy, i'd bet just sharing 1 x 1 Gigabit interface to the core switch for all VMs would be fine. Get some data, review results, and build.
Dont team unless you need to. Only do what you need to do.
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@dave247 said in Hyper-V Network card setup?:
Thanks. And this isn't for testing. I actually want to use this server for some production servers.
Sorry, didn't know. I mistakenly assumed testing and lab because of the time frame.
But you can't go wrong with doing it that way.
If you have no need for an extra NIC you could do a 3-NIC team. If you are fine with no management NIC, do a 4-port team and share it with your management OS if for some reason you need that many NICs in a team. Though you probably don't.
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@tim_g said in Hyper-V Network card setup?:
@dave247 said in Hyper-V Network card setup?:
Thanks. And this isn't for testing. I actually want to use this server for some production servers.
Sorry, didn't know. I mistakenly assumed testing and lab because of the time frame.
But you can't go wrong with doing it that way.
If you have no need for an extra NIC you could do a 3-NIC team. If you are fine with no management NIC, do a 4-port team and share it with your management OS if for some reason you need that many NICs in a team. Though you probably don't.
Yeah well it is for some low-risk servers, so, kinda almost testing, but not really, if that makes sense. lol
