December 19, 2005 at 7:10 am
This is a question of strategy.
What is the criteria in determining when to use a named instance(s) versus lumping all databased under the same (default) instance? I understand that the system databases (including tempdb will be unique, non-shared resources). I also suppose that if the database environment is very dynamic (one in which the number of databases increases/decreases quickly - then you could separate static dbs versus dynamic soas to manage backup jobs, etc more easily using generic maintenance plans. Aside from these obvious characteristics I'm not sure that I would know when to implement a new named instance.
Glenn
December 19, 2005 at 12:20 pm
It looks like you've covered many of the reasons when to use a named instance. Other reasons could be security/permissions reasons where you want the SQL Server service account to have different local or network permissions. Another reason would be if you need to have 2 databases with the same name on the same server. You can only do this by having a named instance. In my opinion, you create a named instance for any of the reasons you or I have mentioned when you can't allocate a second SQL Server to do the job.
December 20, 2005 at 7:45 am
Since I'm minded for performance tuning these days and that we are talking about Named instances , etc... What is the actual performance difference if we compare (all these on the same physical SQL server):
- Doing a SELECT from a table that's in the same database and instance to that table that it JOINs to.
- Doing a SELECT from a table that's in another database but in the same instance to the table that it JOINs to.
- Doing a SELECT from a table that's in another database *and* in another instance to the table that it JOINs to.
The reasoning for this realy would be to have containers for supplier catalog lists that I want to save, but since they might not be used a lot, I would put them elsewhere as to not bear "weight" on my own base.
Has anyone experimented with this yet?
Eric
Viewing 3 posts - 1 through 3 (of 3 total)
You must be logged in to reply to this topic. Login to reply
This website stores cookies on your computer.
These cookies are used to improve your website experience and provide more personalized services to you, both on this website and through other media.
To find out more about the cookies we use, see our Privacy Policy