Solved

Need some data to proof if putting the SSAS server and the relational db on the same server would be a good idea or bad one

Posted on 2012-03-18
9
327 Views
Last Modified: 2016-02-14
Need some data to proof if putting the SSAS server and the relational db on the same server would be a good idea or bad one

Thanks
0
Comment
Question by:thomaszhwang
  • 4
  • 4
9 Comments
 
LVL 38

Assisted Solution

by:Aaron Tomosky
Aaron Tomosky earned 400 total points
Comment Utility
It all comes down to CPU, disk io, and network io.
Depending on your capacity for those and how the app is bottlenecked will show you the best path.
For example:
Box 1 app, box 2 db
Anything the app wants from the db it has to get over the network. But each box gets its own disks and CPU.
Box 1 disk 1 app, box 1 disk 2 db
Now we are sharing CPU between app and db. If the CPU can hang this is pretty nice because the network is totally eliminated.
Box 1 disk 1 app, box 1 disk 1 db
This can become a problem as now we are sharing a disk between the app and the db which can really slow things down even if the CPU has power to spare. Really the only way this is a good idea is if disk1 isn't just a disk but a raid10 array.

I personally like the idea of removing the network from the equation, just make sure your disk and CPU can handle it.
0
 
LVL 25

Assisted Solution

by:jogos
jogos earned 100 total points
Comment Utility
If on same server you can think about Resource Governor http://msdn.microsoft.com/en-us/library/bb933866.aspx to limit the resources taken by SSAS-task.

<<It all comes down to CPU, disk io, and network io.>>
Add memory to that list

Eliminating network as suggested in previous post is a thought, but putting it all on one disk is then making that one disk a bottleneck. A more diversed advice on the placement of your db-files at http://www.mssqltips.com/sqlservertip/2329/how-to-identify-io-bottlenecks-in-ms-sql-server/

And you want proof. That's hard to give.  Do you already have both but on different servers? Or do you have nothing yet?
If you have both you can measure usage on different levels during the day (mont, year) and think if on the peak usage the resources can be challanged by the additional load it is still workable.  
Other server is a hardware and license cost, one server can be only putting another disk and some additional memory ...

If you decide for 2 servers, concider if a clustered environment (active/active) can be of use to have the high availability as a plus (and easy of server patches without instance going offline).
0
 

Author Comment

by:thomaszhwang
Comment Utility
We are now having everything on one server, but we plan to have them separate.  In order to do so, I need some hard proof - something maybe like a white paper or something - to support my assertion for applying for the new hardware.
0
 
LVL 38

Assisted Solution

by:Aaron Tomosky
Aaron Tomosky earned 400 total points
Comment Utility
If it runs well on one server I can only think of two reasons for another:
1. Growth. Look at your CPU, memory, disk io, users, etc...
2. Uptime/failover/load balancing.

Splitting the app and db without any failover thoughts will just double your potential failures. You would have two boxes where if either had a fault the whole thing would go down.
0
Do You Know the 4 Main Threat Actor Types?

Do you know the main threat actor types? Most attackers fall into one of four categories, each with their own favored tactics, techniques, and procedures.

 

Author Comment

by:thomaszhwang
Comment Utility
The initial reason why we want separation is because we have observed some high resource contention.

We definitely will have failover or NLB if we decide to separate the SSAS server.
0
 
LVL 38

Assisted Solution

by:Aaron Tomosky
Aaron Tomosky earned 400 total points
Comment Utility
which resource? cpu,memory, disk?
0
 

Author Comment

by:thomaszhwang
Comment Utility
Mainly from the disk, but in general they are all at a very high level.
0
 
LVL 38

Accepted Solution

by:
Aaron Tomosky earned 400 total points
Comment Utility
Id recommend a second server just for the HA/DR factor. As far as performance, you can look at adding memory and changing your disk setup.
0
 

Author Closing Comment

by:thomaszhwang
Comment Utility
Thanks.
0

Featured Post

Top 6 Sources for Identifying Threat Actor TTPs

Understanding your enemy is essential. These six sources will help you identify the most popular threat actor tactics, techniques, and procedures (TTPs).

Join & Write a Comment

SQL Server engine let you use a Windows account or a SQL Server account to connect to a SQL Server instance. This can be configured immediatly during the SQL Server installation or after in the Server Authentication section in the Server properties …
In this article I will describe the Detach & Attach method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
Familiarize people with the process of retrieving data from SQL Server using an Access pass-thru query. Microsoft Access is a very powerful client/server development tool. One of the ways that you can retrieve data from a SQL Server is by using a pa…
Via a live example, show how to shrink a transaction log file down to a reasonable size.

728 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now