In a two node cluster (active/active), I have installed two SQL Server 2005
instances in order to use both nodes. The virtual server name of the first
SQL instance owned by the node A is like SQLN1 (default instance) and the
second SQL instance owned by the node B is like SQLN2 with a named instance
SQLN2.
Now I have seen that it is not possible a default instance for the instance
owned by node B with the virtual server name SQLN2, isn't it?
My customer would like to access the first instance with the virtual server
name SQLN1 and to access the second instance with the virtual server name
SQLN2:
is it possible? How?
Many thanks
Russ Kaufmann - 21 Jul 2008 22:02 GMT
> In a two node cluster (active/active), I have installed two SQL Server
> 2005
[quoted text clipped - 6 lines]
> instance
> owned by node B with the virtual server name SQLN2, isn't it?
There can only be one default instance in a SQL server cluster. I recommend,
though, that you don't use a default instance and instead use only named
instances.

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Denny Cherry - 21 Jul 2008 22:11 GMT
The second instance on the cluster has to have a different name.
One trick you can use is to tell the names instance to listen on port
1433 and stop the SQL Broker. This "should" allow the users to
connect without putting in a name. You'll need to make sure that both
instances on listening only on there specific IP Addresses otherwise
you'll get port conflicts if the instances end up on the same node at
any point.
Another trick you can use is to use the Client Network Utility
(c:\windows\system32\cliconfg.exe) and setup an alias so that SQLN2
actually points to SQLn2\InstanceName. This will need to be done on
each users PC who needs to connect to the SQL Server.
It is recommended that you simply connect to the instance name.
Denny
>In a two node cluster (active/active), I have installed two SQL Server 2005
>instances in order to use both nodes. The virtual server name of the first
[quoted text clipped - 8 lines]
>is it possible? How?
>Many thanks
Pasquale - 21 Jul 2008 22:38 GMT
In according with your first trick, I have to use the specific IP addresses
instead of the virtual server name (without or with the instance name) for
the client connectivity, isn't it?
Thanks
> The second instance on the cluster has to have a different name.
>
[quoted text clipped - 26 lines]
> >is it possible? How?
> >Many thanks
Denny Cherry - 22 Jul 2008 02:02 GMT
No, you would be able to connect to the virtual server name of the
second instance. Don't forget that when you install SQL in a cluster
each instance get's it's own hostname to go along with it's own IP
address.
>In according with your first trick, I have to use the specific IP addresses
>instead of the virtual server name (without or with the instance name) for
[quoted text clipped - 31 lines]
>> >is it possible? How?
>> >Many thanks
Pasquale - 22 Jul 2008 08:59 GMT
So I can connect to the second instance by using only the related
virtual server name without the name of this instance, isn't it?
Thanks
> No, you would be able to connect to the virtual server name of the
> second instance. Don't forget that when you install SQL in a cluster
[quoted text clipped - 36 lines]
> >> >is it possible? How?
> >> >Many thanks
Denny Cherry - 23 Jul 2008 01:33 GMT
Correct.
Denny
>So I can connect to the second instance by using only the related
>virtual server name without the name of this instance, isn't it?
[quoted text clipped - 40 lines]
>> >> >is it possible? How?
>> >> >Many thanks
Geoff N. Hiten - 22 Jul 2008 01:27 GMT
What you can do is come up with a new, abstract name for the SQL instance
like SQLI2or SQLZ2. YOu then create a DNS record pointing that name to the
IP address of the virtual server, thus substituting DNS for the SQL Browser
service. I generally do this at system build time so I cna move SQL servers
underneath the DNS names without the client systems being any the wiser.

Signature
Geoff N. Hiten
Principal SQL Infrastructure Consultant
Microsoft SQL Server MVP
> In a two node cluster (active/active), I have installed two SQL Server
> 2005
[quoted text clipped - 12 lines]
> is it possible? How?
> Many thanks