Heartbeat network

I keep reading documentation that referes to a separate heartbeat network in
clustering. Is this a requirement in Windows 2008 failover clustering?

Hello Go,

Not needed like in the 'old' way of clustering, you need redundant connectivity.

See here:
http://social.technet.microsoft.com/...d-148cdf8e9d06

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> I keep reading documentation that referes to a separate heartbeat
> network in clustering. Is this a requirement in Windows 2008 failover
> clustering?
>

Hi Go,

You need a private and a public network. In most cases when you read
heartbeat network they men private network.
2 nics or 3 if you use ISCSI per node is what you need.

Regards,

Patrick Mandemaker
--
This posting is provided "AS IS" with no warranties, and confers no rights.



"Meinolf Weber [MVP-DS]" wrote:

> Hello Go,
>
> Not needed like in the 'old' way of clustering, you need redundant connectivity.
>
> See here:
> http://social.technet.microsoft.com/...d-148cdf8e9d06
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>
>
> > I keep reading documentation that referes to a separate heartbeat
> > network in clustering. Is this a requirement in Windows 2008 failover
> > clustering?
> >
>
>
> .
>

I am really confused as to what the purpose of the heartbeat network is. I
created a heartbeat network with a cross-over cable.

I have a 2 node failover cluster. If I unplug the network cable of the
public network - the cluster fails over to the other node. This makes
complete sense to me but what is the function of the heartbeat network.
"Patrick Mandemaker" <> wrote in
message news:BACBF387-0F60-4FA2-9077-...
> Hi Go,
>
> You need a private and a public network. In most cases when you read
> heartbeat network they men private network.
> 2 nics or 3 if you use ISCSI per node is what you need.
>
> Regards,
>
> Patrick Mandemaker
> --
> This posting is provided "AS IS" with no warranties, and confers no
> rights.
>
>
>
> "Meinolf Weber [MVP-DS]" wrote:
>
>> Hello Go,
>>
>> Not needed like in the 'old' way of clustering, you need redundant
>> connectivity.
>>
>> See here:
>> http://social.technet.microsoft.com/...d-148cdf8e9d06
>>
>> Best regards
>>
>> Meinolf Weber
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers
>> no rights.
>> ** Please do NOT email, only reply to Newsgroups
>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>
>>
>> > I keep reading documentation that referes to a separate heartbeat
>> > network in clustering. Is this a requirement in Windows 2008 failover
>> > clustering?
>> >
>>
>>
>> .
>>

Heartbeat Network was a requirement of clustering in W2K3 and bellow. As of
W2K8 and above no need to configure heartbeat network. You still might want
to have a redundant network. In W2K8 cluster sends heartbeat along each
network it uses.

More information here

http://blogs.msdn.com/clustering/arc...6/8578720.aspx
http://blogs.msdn.com/clustering/arc...8/9488114.aspx
http://blogs.msdn.com/clustering/arc...e/default.aspx
http://blogs.msdn.com/clustering/arc...3/9441604.aspx
http://blogs.msdn.com/clustering/arc...0/9410104.aspx


Vladimir Petter
Clustering and High Availability.
This posting is provided "AS IS" with no warranties, and confers no rights.

"Go Oilers" <> wrote in message
news:...
> I am really confused as to what the purpose of the heartbeat network is.
> I created a heartbeat network with a cross-over cable.
>
> I have a 2 node failover cluster. If I unplug the network cable of the
> public network - the cluster fails over to the other node. This makes
> complete sense to me but what is the function of the heartbeat network.
> "Patrick Mandemaker" <> wrote
> in message news:BACBF387-0F60-4FA2-9077-...
>> Hi Go,
>>
>> You need a private and a public network. In most cases when you read
>> heartbeat network they men private network.
>> 2 nics or 3 if you use ISCSI per node is what you need.
>>
>> Regards,
>>
>> Patrick Mandemaker
>> --
>> This posting is provided "AS IS" with no warranties, and confers no
>> rights.
>>
>>
>>
>> "Meinolf Weber [MVP-DS]" wrote:
>>
>>> Hello Go,
>>>
>>> Not needed like in the 'old' way of clustering, you need redundant
>>> connectivity.
>>>
>>> See here:
>>> http://social.technet.microsoft.com/...d-148cdf8e9d06
>>>
>>> Best regards
>>>
>>> Meinolf Weber
>>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>>> confers
>>> no rights.
>>> ** Please do NOT email, only reply to Newsgroups
>>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>>
>>>
>>> > I keep reading documentation that referes to a separate heartbeat
>>> > network in clustering. Is this a requirement in Windows 2008 failover
>>> > clustering?
>>> >
>>>
>>>
>>> .
>>>
>
>