MCSG Cluster

[Sanjiv Sharma_1]

Hi,

I have an N-Class/HP-UX 11.00.
I am planning to get another rp8400/HP-UX 11i.
Can I have both of these two servers with hpux 11.00 and 11i in cluster?

Also, what is one-tier,two-tier,three-tier in MCSG? Which should I go for in my case?

Thanks,
Raje.

[melvyn burnard]

Yes you can have this. You just need to make sure you use the same version of SG in the cluster.
As for the second question, I am not sure what you are referring to, other than running an SAP system in the cluster. Is this the case?

[Sanjiv Sharma_1]

Hi Burnard,
Thanks for your reply.
We don't want to use SAP. We want to use for Informix Database.

Regarding one-tier,two-tier,three-tier.
It is mentioned in SG manual "Managing MC/Service Guard".

I think when we order MC/Service Guard at present it asks for one-tier,two-tier,three-tier.

Thanks,
Raje.

[melvyn burnard]

That refers to how you use your application. In the case of SAP, you have a Database/Central Instance, with external Application Servers.
This gives you the 2 or 3 tier environment, depending upon how you configure it.
Your choice will be based upon your environment and configuration

Melvyn

[melvyn burnard]

I also believe the "tier" you are discussing when purchasing is the licensing tier/cost. This is entirely different to what I refer to above and what is referred to in the manual.

[Stephen Doud]

Hello Raje,

Melvyn's last comment spurred my memory too.
I checked an internal HP document called the Server Ordering Guide and noted that indeed there are 3 tiers which determine the pricing for MC/ServiceGuard.

Tier 1 - A/D/E/F/G/K1xx,K2xx,L Classes
Tier 2 - H/I/K4xx,K5xx,N-Class
Tier 3 - T5XX,T600,890,V-class
The document does not list the newer systems but it does list a per-processor license which I believe is replacing the tier system, which may be applicable to the newer servers.

Please approach your sales channel for information relevant to your environment.

-s.